Novel continuous casting conveying roller way

Abstract

The utility model discloses a novel continuous casting conveying roller way, belongs to the technical field of steelmaking and continuous casting, and solves the problem that an existing continuous casting conveying roller way is poor in limiting effect on a continuous casting billet. The roller comprises a roller shaft and further comprises two limiting sleeves, the two limiting sleeves are detachably installed on the roller shaft, a plurality of supporting plates arranged at intervals are detachably installed between the two limiting sleeves on the periphery of the roller shaft, the supporting plates are arc-shaped plates, and the supporting plates are evenly distributed around the axis of the roller shaft. The distance A between the outer wall face of the supporting plate and the outer wall faces of the limiting sleeves is 70 mm, the distance K between the inner wall faces of the two limiting sleeves is 165 mm, the thickness of the supporting plate is 22 mm, the limiting sleeves and the supporting plate are both made of 20 CrMo, and the outer wall face of the supporting plate is subjected to thermal refining to be HRC33-38. According to the continuous casting conveying roller way, the service life of the conveying roller way can be effectively prolonged, and follow-up infrared fixed-length cutting is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of steelmaking continuous casting, and more specifically, to a novel continuous casting conveying roller. Background Art

[0002] The weight of continuous casting billet is stable, which can reduce the length of rolled steel tail and improve the yield rate. However, in the continuous casting production process, it is affected by various factors, among which the accuracy of the billet length plays a key role in controlling the billet weight. Figure 1 As shown, the current continuous casting machine conveyor roller has a solid structure of roller a, which is fixedly installed on the roller shaft 1, and the roller surface width B is 260mm, while the cross-sectional size of the continuous casting billet is generally 155mm*155mm. In order to achieve the purpose of heat insulation and heat dissipation of the continuous casting billet, water-cooled vertical plates c are set on both sides of the roller. However, during the operation of the continuous casting billet, the left and right movement is large, which makes the roller surface easy to deform, wear and get stuck, and the running track is unstable, thereby causing the instability of the length of the continuous casting billet.

[0003] Therefore, it is urgent to design a new type of continuous casting conveying roller to solve the above-mentioned technical problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a novel continuous casting conveyor roller table for the above-mentioned deficiencies in the prior art, which can effectively improve the service life of the conveyor roller table and facilitate subsequent infrared fixed-length cutting.

[0005] The technical solution of the utility model is as follows: a new type of continuous casting conveying roller, including a roller shaft and two limit sleeves, the two limit sleeves are detachably installed on the roller shaft, and a plurality of spaced support plates are detachably installed between the two limit sleeves on the periphery of the roller shaft, the support plates are arc-shaped plates, and the plurality of support plates are evenly distributed around the axis of the roller shaft; the distance A between the outer wall surface of the support plate and the outer wall surface of the limit sleeve is 70mm, the distance K between the inner wall surfaces of the two limit sleeves is 165mm, the thickness of the support plate is 22mm, the materials of the limit sleeve and the support plate are both 20CrMo, and the outer wall surface of the support plate is tempered to HRC33-38.

[0006] As a further improvement, the inner side of the outer edge of each limiting sleeve is provided with an inclined surface extending obliquely from the inner side surface toward the outer side surface.

[0007] Furthermore, a recessed groove is provided on the outer side surface of the limiting sleeve below the inclined surface, and the position of the supporting plate corresponds to the position of the recessed groove.

[0008] Furthermore, a card slot is provided on the inner side surface of the limiting sleeve, and both ends of the support plate are clamped in the card slots corresponding to the two limiting sleeves.

[0009] Furthermore, a locking screw is provided on the outer side of the limiting sleeve, and the locking screw movably passes through the limiting sleeve and is threadedly connected to the support plate.

[0010] Furthermore, a connecting sleeve is provided at the inner center of one of the limiting sleeves, the connecting sleeve is provided on the roller shaft, and the connecting sleeve is connected to the roller shaft via fastening bolts.

[0011] Furthermore, the limiting sleeve is a shell structure with a hollow interior.

[0012] Beneficial Effects

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] 1. The continuous casting conveying roller of the utility model uses a plurality of support plates arranged at intervals to support the continuous casting billet, which meets the requirements of conveying the continuous casting billet. At the same time, the gap between two adjacent support plates can dissipate heat for the continuous casting billet, and the limiting sleeve above the support plate serves as a member for guiding and limiting the continuous casting billet, which can correct the running trajectory of the continuous casting billet and has a heat-insulating effect on the water-cooled bearing seat and the lubricating dry oil pipe. The original water-cooled vertical plate can be eliminated, reducing the use of water and spare parts, which can effectively improve the service life of the conveying roller and facilitate subsequent infrared fixed-length cutting.

[0015] 2. The support plate of the continuous casting conveying roller of the utility model is detachably installed between two limit sleeves, and the limit sleeve and the roller shaft are also detachably installed. When disassembling, the limit sleeve is removed from the roller shaft, and then the support plate is removed from between the limit sleeves, so that the purpose of replacing a certain component separately can be achieved, and disassembly and maintenance are very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the prior art;

[0017] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 3 It is a side cross-sectional structural schematic diagram of Example 1 of the utility model;

[0019] Figure 4 It is a side cross-sectional structural schematic diagram of Example 2 in the utility model.

[0020] Among them: 1-roller, 2-limiting sleeve, 3-support plate, 4-inclined surface, 5-sunk groove, 6-card groove, 7-locking screw, 8-connecting sleeve, 9-fastening bolt, a-roller, c-water-cooling vertical plate. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the specific embodiments in the accompanying drawings.

[0022] See also Figure 2 The utility model discloses a novel continuous casting conveying roller, comprising a roller shaft 1 and two limiting sleeves 2, wherein the two limiting sleeves 2 are detachably mounted on the roller shaft 1, and a plurality of support plates 3 arranged at intervals are detachably mounted between the two limiting sleeves 2 on the periphery of the roller shaft 1, wherein the support plates 3 are arc-shaped plates, and the plurality of support plates 3 are evenly distributed around the axis of the roller shaft 1, and the support plates 3 are used to contact the continuous casting billet to form support. Since there are multiple continuous casting conveying rollers, when the continuous casting billet reaches the support plates 3 of each continuous casting conveying roller, the continuous casting billet is in a horizontal state under its own gravity, and the continuous casting billet will not turn over. The part will not be stuck in the gap between two adjacent support plates 3; specifically, the distance A between the outer wall of the support plate 3 and the outer wall of the limiting sleeve 2 is 70mm, and the higher roller edge can achieve the guiding and limiting purposes while also playing a role in heat insulation. The distance K between the inner walls of the two limiting sleeves 2 is 165mm, which can achieve better guiding and limiting effects. The thickness of the support plate 3 is 22mm, and the materials of the limiting sleeve 2 and the support plate 3 are both 20CrMo, and the outer wall of the support plate 3 is tempered to HRC33-38, which improves the structural strength of the support plate 3 and thereby extends its service life.

[0023] The continuous casting conveying roller of the utility model utilizes a plurality of support plates 3 arranged at intervals to support the continuous casting billet, so as to meet the requirement of conveying the continuous casting billet. At the same time, the gap between two adjacent support plates 3 can dissipate heat for the continuous casting billet. The limiting sleeve 2 above the support plate 3 serves as a component for guiding and limiting the continuous casting billet, can correct the running trajectory of the continuous casting billet, and has a heat-insulating effect on the water-cooled bearing seat and the lubricating dry oil pipe. In actual application, the original water-cooled vertical plate can be eliminated, reducing the use of water and spare parts, which can effectively improve the service life of the conveying roller and facilitate subsequent infrared fixed-length cutting.

[0024] Preferably, the inner side of the outer edge of each limiting sleeve 2 is provided with an inclined surface 4 extending obliquely from the inner side surface to the outer side surface, and a trumpet-shaped structure is formed between the inclined surfaces 4 corresponding to the two limiting sleeves 2, which is convenient for observing the continuous casting billet or temporarily lifting the continuous casting billet.

[0025] Preferably, a recessed groove 5 is provided on the outer side surface of the limiting sleeve 2 below the inclined surface 4 , and the position of the support plate 3 corresponds to the position of the recessed groove 5 , thereby improving the structural strength of the limiting sleeve 2 and facilitating the installation of the locking screw 7 .

[0026] Preferably, a card slot 6 is provided on the inner side of the limiting sleeve 2, and both ends of the support plate 3 are clamped in the card slots 6 corresponding to the two limiting sleeves 2. The card slot 6 is used to install the support plate 3, which can effectively improve the installation stability of the support plate 3. Furthermore, a locking screw 7 is provided on the outer side of the limiting sleeve 2, and the locking screw 7 is movably passed through the limiting sleeve 2 and threadedly connected with the support plate 3 to achieve detachable installation of the support plate 3. Both limiting sleeves 2 are sleeved on the roller shaft 1, and a connecting sleeve 8 is provided at the inner center of one of the limiting sleeves 2. The connecting sleeve 8 is sleeved on the roller shaft 1, and the connecting sleeve 8 is connected to the roller shaft 1 through a fastening bolt 9 to achieve detachable installation of the limiting sleeve 2.

[0027] The continuous casting conveyor roller of this embodiment has a support plate 3 that is detachably installed between two limit sleeves 2, and a detachable installation structure is also provided between the limit sleeves 2 and the roller shaft 1. When disassembling, the limit sleeves 2 are removed from the roller shaft 1, and then the support plate 3 is removed from between the limit sleeves 2, so that the purpose of replacing a certain component separately can be achieved. Disassembly and assembly and maintenance are very convenient, and maintenance costs are effectively reduced.

[0028] Preferably, the limiting sleeve 2 is a shell structure with a hollow interior. The limiting sleeve 2 with a hollow structure has better structural strength and can also effectively improve the heat insulation effect.

[0029] See also Figure 3 , which is a specific embodiment of the utility model. In this embodiment, there are two support plates 3. The structure of two support plates 3 can effectively reduce costs and make disassembly and maintenance faster.

[0030] See also Figure 4 , which is another specific embodiment of the utility model. In this embodiment, there are three support plates 3. The structure of three support plates 3 provides more stable support for the continuous casting billet and better conveying effect.

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A novel continuous casting conveyor roller, comprising a roller shaft (1), characterized in that: It also comprises two limiting sleeves (2), the two limiting sleeves (2) are detachably mounted on the roller shaft (1), a plurality of support plates (3) are detachably mounted between the two limiting sleeves (2) on the periphery of the roller shaft (1), the support plates (3) are arc-shaped plates, and the plurality of support plates (3) are evenly distributed around the axis of the roller shaft (1); the distance A between the outer wall surface of the support plate (3) and the outer wall surface of the limiting sleeve (2) is 70 mm, the distance K between the inner wall surfaces of the two limiting sleeves (2) is 165 mm, the thickness of the support plate (3) is 22 mm, the materials of the limiting sleeve (2) and the support plate (3) are both 20CrMo, and the outer wall surface of the support plate (3) is tempered to HRC33-38.

2. A novel continuous casting conveyor roller according to claim 1, characterized in that: The inner side of the outer edge of each limiting sleeve (2) is provided with an inclined surface (4) extending obliquely from the inner side surface toward the outer side surface.

3. A novel continuous casting conveyor roller according to claim 2, characterized in that: The outer side surface of the limiting sleeve (2) below the inclined surface (4) is provided with a sinking groove (5), and the position of the supporting plate (3) corresponds to the position of the sinking groove (5).

4. A novel continuous casting conveyor roller according to claim 1, characterized in that: The inner side surface of the limiting sleeve (2) is provided with a clamping groove (6), and both ends of the supporting plate (3) are clamped in the corresponding clamping grooves (6) of the two limiting sleeves (2).

5. A novel continuous casting conveyor roller according to claim 4, characterized in that: The outer side surface of the limiting sleeve (2) is provided with a locking screw (7), and the locking screw (7) movably passes through the limiting sleeve (2) and is threadedly connected to the support plate (3).

6. A novel continuous casting conveyor roller according to claim 5, characterized in that: A connecting sleeve (8) is provided at the inner center of one of the limiting sleeves (2), the connecting sleeve (8) is sleeved on the roller shaft (1), and the connecting sleeve (8) is connected to the roller shaft (1) via a fastening bolt (9).

7. A novel continuous casting conveyor roller according to any one of claims 1 to 6, characterized in that: The limiting sleeve (2) is a shell structure with a hollow interior.

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