Hollow roller body structure of roller

Abstract

The utility model relates to the technical field of steel rolling, in particular to a hollow roller body structure of a roller. The hollow roller body structure of the roller comprises a roller body, a hollow cylinder part with the diameter larger than that of the two ends of the roller body is arranged in the middle of the roller body, a baffle ring is fixedly embedded in one end of the hollow cylinder part, and an annular opening is formed in the other end of the hollow cylinder part. A press-fit barrel which is in sliding connection is inserted into the hollow cylinder part, and a positioning ring used for locking the press-fit barrel is installed in an annular opening formed in the hollow cylinder part. According to the hollow roller body structure of the roller provided by the utility model, when the press-fit barrel is abraded, collided and the like after being used for a long time, the screw is screwed down and the positioning ring is taken down, so that the press-fit barrel on the hollow cylindrical part can be quickly taken down in an external sliding manner, and the whole hollow roller body of the roller does not need to be disassembled when the press-fit barrel is repaired or replaced; therefore, the press-fit cylinder can be replaced, and the repair efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel rolling, in particular to a hollow roller body structure of a roller. Background Art

[0002] The thickness of steel plates needs to be reduced due to processing needs, so that higher strength can be obtained while processing the steel. The thickness of the steel is currently changed by rolling the steel through a rolling mill, that is, a pair or a group of rollers apply huge pressure to the high-temperature steel plate to deform it. Since the rollers are under high temperature and high pressure for a long time, the rollers are more likely to be replaced. At this time, the rollers need to be disassembled as a whole, but the rollers are large and difficult to carry, which is very inconvenient and seriously affects production efficiency.

[0003] Therefore, it is necessary to provide a new hollow roller body structure of a rolling roller to solve the above technical problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a hollow roller body structure.

[0005] The hollow roller body structure of the roller provided by the utility model comprises a roller body, wherein a hollow cylindrical part having a diameter larger than that of both ends of the roller body is arranged in the middle of the roller body, a retaining ring is fixedly engaged at one end of the hollow cylindrical part, and an annular opening is opened at the other end of the hollow cylindrical part;

[0006] A slidably connected pressing cylinder is inserted into the hollow cylindrical portion, and a positioning ring for locking the pressing cylinder is installed in the annular opening formed in the hollow cylindrical portion.

[0007] Preferably, the hollow cylindrical portion is provided with a plurality of axially arranged and annularly distributed insertion grooves.

[0008] Preferably, a plurality of axially arranged and annularly distributed inner embedded plates are fixedly embedded on the inner cylinder wall of the pressing cylinder, and the inner embedded plates and the insertion grooves match each other.

[0009] Preferably, the annular opening is provided with a plurality of annularly distributed threaded holes, the positioning ring is provided with a plurality of annularly distributed threaded through holes, and the positioning ring is sleeved on the annular opening provided in the hollow cylindrical portion, the threaded through holes on the positioning ring correspond one-to-one to the threaded holes on the annular opening and are installed with screws.

[0010] Preferably, annular grooves are provided on the roller bodies on both sides of the hollow cylindrical portion, and a plurality of annularly distributed spherical grooves are provided in the annular grooves, a rolling steel ball is embedded in each spherical groove, and one third of the sphere of the steel ball extends out of the spherical groove.

[0011] Preferably, waist-shaped through cavities are provided at both ends of the roller body, and the waist-shaped through cavities are communicated with the lower groove body of the spherical groove.

[0012] Compared with the related art, the hollow roller body structure of the roller provided by the utility model has the following beneficial effects:

[0013] When the pressing cylinder is used for a long time and suffers from problems such as wear and collision, the pressing cylinder on the hollow cylindrical part can be quickly slid out and removed after the screws are unscrewed and the positioning ring is removed. Therefore, when repairing or replacing the pressing cylinder, there is no need to remove the entire hollow roller body of the roller, and the pressing cylinder can be replaced, which greatly improves the repair efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A structural schematic diagram of a preferred embodiment of the hollow roller body structure of the roller provided by the utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of the explosion structure shown.

[0016] Numbers in the figure: 1, roller body; 11, hollow cylindrical part; 1a, insertion groove; 1b, annular opening; 1c, threaded hole; 1d, annular groove; 1e, waist-shaped cavity; 12, retaining ring; 2, pressing cylinder; 21, embedded plate; 3, positioning ring; 3a, threaded through hole; 4, steel ball. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0019] See also Figure 1 to Figure 2 The embodiment of the utility model provides a hollow roller body structure of a rolling mill, the hollow roller body structure of the rolling mill comprises: a roller body 1, a hollow cylindrical portion 11 having a diameter larger than that of both ends of the roller body 1 is arranged in the middle of the roller body 1, a retaining ring 12 is fixedly fitted at one end of the hollow cylindrical portion 11, and an annular opening 1b is opened at the other end of the hollow cylindrical portion 11, and a pressing cylinder 2 which is slidably connected is inserted into the hollow cylindrical portion 11, and a positioning ring 3 for locking the pressing cylinder 2 is installed in the annular opening 1b opened in the hollow cylindrical portion 11;

[0020] Specifically: the hollow cylindrical portion 11 is provided with a plurality of axially arranged, annularly distributed insertion grooves 1a, and the inner cylinder wall of the pressing cylinder 2 is fixedly embedded with a plurality of axially arranged, annularly distributed inner plates 21, and the inner plates 21 match the insertion grooves 1a, the annular opening 1b is provided with a plurality of annularly distributed threaded holes 1c, the positioning ring 3 is provided with a plurality of annularly distributed threaded through holes 3a, and the positioning ring 3 is sleeved on the annular opening 1b formed in the hollow cylindrical portion 11, and the threaded through holes 3a on the positioning ring 3 correspond one-to-one to the threaded holes 1c on the annular opening 1b and are installed with screws.

[0021] It should be noted that: when installing the pressing cylinder 2 on the roller body 1, the inner plate 21 in the pressing cylinder 2 is made to correspond to the insertion groove 1a opened on the hollow cylindrical part 11, and then the pressing cylinder 2 is pushed into the hollow cylindrical part 11, and the inner cylinder surface of the pressing cylinder 2 is directly pressed against the retaining ring 12 on the hollow cylindrical part 11, and then the positioning ring 3 is sleeved on the annular opening 1b of the hollow cylindrical part 11, and the threaded through hole 3a on the positioning ring 3 is made to correspond to the threaded hole 1c on the annular opening 1b one by one, and then the screws are inserted to fix them by thread.

[0022] When the pressing cylinder 2 is used for a long time and suffers from problems such as wear and bump, the screws can be unscrewed and the positioning ring 3 can be removed, and the pressing cylinder 2 on the hollow cylindrical part 11 can be quickly slid off. Therefore, when repairing or replacing the pressing cylinder 2, there is no need to remove the entire hollow roller body of the rolling mill, and the pressing cylinder 2 can be replaced, which greatly improves the repair efficiency.

[0023] In the embodiments of the present invention, please refer to Figure 1 and Figure 2 , annular grooves 1d are provided on the roller body 1 on both sides of the hollow cylindrical portion 11, and a plurality of annularly distributed spherical grooves are provided in the annular grooves 1d, a steel ball 4 is embedded in each spherical groove and rolled, and one-third of the sphere of the steel ball 4 extends out of the spherical groove, and waist-shaped through cavities 1e are provided at both ends of the roller body 1, and the waist-shaped through cavities 1e are communicated with the lower groove body of the spherical groove.

[0024] It should be noted that: on the one hand, the steel balls 4 increase the contact area between the roller body and the air, so that the roller body can quickly dissipate heat; on the other hand, when the roller body rotates, the steel balls 4 can rotate under the action of centrifugal force so that the spherical part located in the roller body can be rotated out of the spherical groove, further accelerating the heat dissipation effect of the roller body.

[0025] The working principle of the hollow roller body structure of the roller provided by the utility model is as follows:

[0026] When installing the pressing cylinder 2 on the roller body 1, make the inner plate 21 in the pressing cylinder 2 correspond to the insertion groove 1a opened on the hollow cylindrical part 11, then push the pressing cylinder 2 into the hollow cylindrical part 11, directly press the inner surface of the pressing cylinder 2 against the retaining ring 12 on the hollow cylindrical part 11, and then put the positioning ring 3 on the annular opening 1b of the hollow cylindrical part 11, and make the threaded through hole 3a on the positioning ring 3 correspond to the threaded hole 1c on the annular opening 1b one by one, and then fix it by inserting screws. After solving the problems, after unscrewing the screws and removing the positioning ring 3, the pressing cylinder 2 on the hollow cylindrical part 11 can be quickly slid out and removed. Therefore, when repairing or replacing the pressing cylinder 2, there is no need to remove the entire hollow roller body of the rolling mill, and the pressing cylinder 2 can be replaced, which greatly improves the repair efficiency. On the one hand, the arranged steel ball 4 increases the contact area between the roller body and the air, so that the roller body can quickly dissipate heat. On the other hand, when the roller body rotates, the steel ball 4 can rotate under the action of centrifugal force so that the spherical part located in the roller body can be rotated out of the spherical groove, further accelerating the heat dissipation effect of the roller body.

[0027] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A hollow roller body structure of a roller, characterized in that: It comprises a roller body (1), wherein a hollow cylindrical portion (11) having a diameter greater than that of both ends of the roller body (1) is provided in the middle of the roller body (1), a retaining ring (12) is fixedly engaged at one end of the hollow cylindrical portion (11), and an annular opening (1b) is provided at the other end of the hollow cylindrical portion (11); The hollow cylindrical portion (11) is inserted with a slidably connected pressing cylinder (2), and a positioning ring (3) for locking the pressing cylinder (2) is installed in the annular opening (1b) provided in the hollow cylindrical portion (11).

2. The hollow roller body structure of the roller according to claim 1, characterized in that: The hollow cylindrical portion (11) is provided with a plurality of axially arranged and annularly distributed insertion grooves (1a).

3. The hollow roller body structure of the roller according to claim 2, characterized in that: A plurality of axially arranged and annularly distributed inner plates (21) are fixedly embedded on the inner cylinder wall of the pressing cylinder (2), and the inner plates (21) and the insertion grooves (1a) match each other.

4. The hollow roller body structure of the rolling mill according to claim 1, characterized in that: The annular opening (1b) is provided with a plurality of threaded holes (1c) distributed in an annular pattern, the positioning ring (3) is provided with a plurality of threaded through holes (3a) distributed in an annular pattern, and the positioning ring (3) is sleeved on the annular opening (1b) provided on the hollow cylindrical portion (11), the threaded through holes (3a) on the positioning ring (3) correspond one to one with the threaded holes (1c) on the annular opening (1b) and are provided with screws.

5. The hollow roller body structure of the roller according to claim 1, characterized in that: The roller body (1) on both sides of the hollow cylindrical portion (11) is provided with an annular groove (1d), and a plurality of annularly distributed spherical grooves are provided in the annular groove (1d), and a rolling steel ball (4) is embedded in each spherical groove, and one third of the sphere of the steel ball (4) extends out of the spherical groove.

6. The hollow roller body structure of the roller according to claim 5, characterized in that: Both ends of the roller body (1) are provided with waist-shaped through cavities (1e), and the waist-shaped through cavities (1e) are communicated with the lower groove body of the spherical groove.

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