Low-alloy high-boron high-speed steel roller with arc-shaped rolling grooves

Abstract

The utility model provides a low-alloy high-boron high-speed steel roller with an arc-shaped rolling groove, which belongs to the field of high-speed steel roller equipment and comprises a roller body, the arc-shaped rolling groove and a mounting component. Two ends of the roller body are fixedly connected with rotating shafts; one end of each rotating shaft is fixedly connected with a shaft head; the arc-shaped rolling grooves are formed in the surface of the roller body at equal intervals, the arc-shaped rolling grooves can extrude workpieces in the machining process, metal located in the arc-shaped rolling grooves is subjected to plastic deformation, the production requirement is met, the protruding parts formed between the arc-shaped rolling grooves enable the workpieces to be separated, and the production efficiency is improved. And the round chamfering part is machined at the joint of the protruding part and the arc-shaped rolling groove, so that the workpiece is in contact with the round chamfering part when entering the arc-shaped rolling groove, and the edge of the protruding part is prevented from scratching the workpiece.

Description

Technical Field

[0001] The utility model relates to the field of high-speed steel roll equipment, in particular to a low-alloy high-boron high-speed steel roll with an arc-shaped rolling groove. Background Technique

[0002] Semi-steel rolls have both the high strength and toughness of cast steel rolls and the good wear resistance of cast iron rolls. Rolls are important processing equipment in steel rolling production. Roll cooling is a relatively important link in the steel rolling process. For steel rolling of different widths, the same roll is used for cooling. The existing roll cooling range is fixed. If the cooling width of the roll is much larger than the width of the steel rolling, the extra cooling surface of the roll will not play a cooling role, which will cause waste of resources. At the same time, when the cooling width is insufficient, thermal stress damage is likely to occur at the edge of the pass. Not only the roll consumption is high, the production cost increases, but also the surface quality of the product is seriously reduced, resulting in damage to the enterprise's benefits. Among them, the adjustable semi-steel roll with the application number "CN201720752358.9". When the adjustable semi-steel roll of the utility model is in use, the plug ring is controlled by a screw to displace in the annular cavity, changing the space for cooling water to enter the annular cavity, so as to realize changing the cooling range on the roll, and the cooling range of the roll can be adjusted according to the width of different steel rollings, reducing production energy consumption and saving production costs. However, there are still some deficiencies in the use of this steel roll: during production and processing, some workpieces need to be squeezed by the rolls to achieve plastic deformation of the metal in the middle. The surface of this steel roll is smooth and cannot meet specific production requirements. Content of the Utility Model

[0003] The purpose of the utility model is to provide a low-alloy high-boron high-speed steel roll with an arc-shaped rolling groove to solve the problem that in the production and processing, some workpieces need to be squeezed by the rolls to achieve plastic deformation of the metal in the middle, and the surface of this steel roll is smooth and cannot meet specific production requirements proposed in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A low-alloy high-boron high-speed steel roll with an arc-shaped rolling groove, including a roll body, an arc-shaped rolling groove and a mounting component;

[0005] Wherein: both ends of the roll body are fixedly connected with rotating shafts, and one end of the rotating shaft is fixedly connected with a shaft head;

[0006] The surface of the roll body is provided with a plurality of arc-shaped rolling grooves. The plurality of arc-shaped rolling grooves are equidistantly arranged on the surface of the roll body. A convex portion is formed between adjacent arc-shaped rolling grooves. A round chamfer portion is provided at the connection between the edge of the convex portion and the arc-shaped rolling groove;

[0007] The installation component includes an installation ring fixedly installed on the surface of the shaft head. An installation sleeve is sleeved on the surface of the shaft head. One end of the installation sleeve is fixedly connected with a fixing ring. Threaded holes are formed on the surfaces of both the installation ring and the fixing ring, and installation bolts are threadedly connected inside the threaded holes.

[0008] As a preferred solution of the present utility model: A spline groove is formed on the surface of the shaft head.

[0009] As a preferred solution of the present utility model: Key teeth are fixedly connected to the inner wall of the installation sleeve, and the key teeth are inserted into the spline groove.

[0010] As a preferred solution of the present utility model: Water inlets and water outlets are formed on the side surface of the roll body.

[0011] As a preferred solution of the present utility model: A spiral water channel is formed inside the roll body, and both ends of the spiral water channel are communicated with the water inlet and the water outlet respectively.

[0012] As a preferred solution of the present utility model: Anticorrosion layers are sprayed on the surfaces of the rotating shaft and the shaft head.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] (1) A number of arc rolling grooves are formed at equal intervals on the surface of the roll body. The arc rolling grooves can realize the extrusion of the workpiece during processing, so that the metal located in the arc rolling grooves undergoes plastic deformation to meet the production requirements. The protruding parts formed between the arc rolling grooves separate the workpieces to prevent the workpieces from sliding during processing. A round chamfer part is processed at the connection between the protruding part and the arc rolling groove, so that when the workpiece enters the arc rolling groove, it contacts the round chamfer part, preventing the edge of the protruding part from scratching the workpiece;

[0015] (2) Through the provided installation component, an installation ring is installed on the surface of the shaft head. When connecting with the rotating equipment, the installation sleeve is sleeved on the surface of the shaft head, so that the fixing ring at one end of the installation sleeve contacts the installation ring, making the threaded holes formed on the surfaces of the installation ring and the fixing ring correspond. The installation bolts are threadedly connected inside the threaded holes to fixedly install the shaft head and the installation sleeve. Description of the Drawings

[0016] Figure 1 is the overall structural schematic diagram of the present utility model;

[0017] Figure 2 is the side view structural schematic diagram of the present utility model;

[0018] Figure 3 is the arc rolling groove structural schematic diagram of the present utility model;

[0019] Figure 4Schematic structural diagram of the installation component of the present utility model.

[0020] In the figure: 1, roll body; 2, rotating shaft; 3, shaft head; 31, spline groove; 4, arc rolling groove; 41, protruding part; 42, round chamfered part; 5, installation component; 51, installation ring; 52, installation sleeve; 521, key teeth; 53, fixing ring; 54, threaded hole; 55, installation bolt; 6, water inlet; 7, water outlet. Specific implementation mode

[0021] To make the purpose, technical solution and advantages of the implementation mode of the present utility model clearer, the technical solutions in the implementation mode of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the implementation mode of the present utility model. Obviously, the described implementation mode is a part of the implementation modes of the present utility model, rather than all of the implementation modes. All other implementation modes obtained by those of ordinary skill in the art based on the implementation modes in the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0022] Please refer to Figures 1 - 4 , a low-alloy high-boron high-speed steel roll with an arc rolling groove, comprising: a roll body 1, an arc rolling groove 4 and an installation component 5; both ends of the roll body 1 are fixedly connected with a rotating shaft 2, and one end of the rotating shaft 2 is fixedly connected with a shaft head 3;

[0023] Please refer to Figure 1 , Figure 3 , a plurality of arc rolling grooves 4 are arranged on the surface of the roll body 1, and the plurality of arc rolling grooves 4 are equidistantly arranged on the surface of the roll body 1. A protruding part 41 is formed between adjacent arc rolling grooves 4, and a round chamfered part 42 is arranged at the connection between the edge of the protruding part 41 and the arc rolling groove 4.

[0024] During specific use: a plurality of arc rolling grooves 4 are equidistantly arranged on the surface of the roll body 1. The arc rolling grooves 4 can realize the extrusion of the workpiece during processing, so that the metal in the arc rolling grooves 4 undergoes plastic deformation to meet the production requirements. The protruding parts 41 formed between the arc rolling grooves 4 separate the workpieces to prevent the workpieces from sliding during processing. The round chamfered part 42 is processed at the connection between the protruding part 41 and the arc rolling groove 4, so that the workpiece contacts the round chamfered part 42 when entering the arc rolling groove 4, avoiding scratching the workpiece by the edge of the protruding part 41.

[0025] Please refer to Figure 1 , Figure 4 , the installation component 5 includes an installation ring 51 fixedly installed on the surface of the shaft head 3. An installation sleeve 52 is sleeved on the surface of the shaft head 3. One end of the installation sleeve 52 is fixedly connected with a fixing ring 53. Threaded holes 54 are formed on the surfaces of the installation ring 51 and the fixing ring 53, and installation bolts 55 are threadedly connected inside the threaded holes 54.

[0026] During specific use: An installation ring 51 is installed on the surface of the shaft head 3. When connecting to the rotating equipment, the installation sleeve 52 is sleeved on the surface of the shaft head 3, so that the fixing ring 53 at one end of the installation sleeve 52 contacts the installation ring 51, and the threaded holes 54 opened on the surfaces of the installation ring 51 and the fixing ring 53 are corresponding. The installation bolt 55 is threadedly connected inside the threaded hole 54, thereby fixedly installing the shaft head 3 and the installation sleeve 52.

[0027] Please refer to Figure 1 , Figure 4 , a spline groove 31 is opened on the surface of the shaft head 3, and a key tooth 521 is fixedly connected to the inner wall of the installation sleeve 52. The key tooth 521 is inserted into the spline groove 31.

[0028] During specific use: A spline groove 31 is opened on the surface of the shaft head 3, and a key tooth 521 is installed on the inner wall of the installation sleeve 52. When the installation sleeve 52 is sleeved on the surface of the shaft head 3, the key tooth 521 is inserted into the spline groove 31, so that a stable connection is maintained between the installation sleeve 52 and the shaft head 3. At the same time, the threaded holes 54 opened on the surfaces of the installation ring 51 and the fixing ring 53 are also corresponding, avoiding readjusting the correspondence of the threaded holes 54 during installation.

[0029] Please refer to Figure 1 , a water inlet 6 and a water outlet 7 are opened on the side surface of the roll body 1, and a spiral water channel is opened inside the roll body 1. The two ends of the spiral water channel are respectively communicated with the water inlet 6 and the water outlet 7.

[0030] During specific use: A water inlet 6 and a water outlet 7 are opened on the side surface of the roll body 1, and a spiral water channel is arranged around inside the roll body 1. During processing, the roll body 1 will generate heat. The cooling water is injected into the spiral water channel through the water inlet 6, and the cooling water takes away the heat of the roll body 1 through the spiral water channel and is discharged from the water outlet 7, facilitating the cooling of the roll body 1 through the circulating water flow.

[0031] Please refer to Figure 1 , an anti-corrosion layer is sprayed on the surfaces of the rotating shaft 2 and the shaft head 3.

[0032] During specific use: Spraying an anti-corrosion layer on the surfaces of the rotating shaft 2 and the shaft head 3 enables the structural parts to have better corrosion resistance.

[0033] A number of arc rolling grooves 4 are equidistantly opened on the surface of the roll body 1. The arc rolling grooves 4 can realize the extrusion of the workpiece during processing, so that the metal located in the arc rolling grooves 4 undergoes plastic deformation to meet the production requirements. The protruding parts 41 formed between the arc rolling grooves 4 separate the workpieces, avoiding the sliding of the workpieces during processing. A round chamfer part 42 is processed at the connection between the protruding part 41 and the arc rolling groove 4, so that the workpiece contacts the round chamfer part 42 when entering the arc rolling groove 4, avoiding scratching the workpiece by the edge of the protruding part 41.

[0034] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A low alloy high boron high speed steel roll with an arc groove, characterized in that: include: A roller body (1), wherein both ends of the roller body (1) are fixedly connected to a rotating shaft (2), and one end of the rotating shaft (2) is fixedly connected to a shaft head (3); Arc-shaped rolling grooves (4), the surface of the roller body (1) is provided with a plurality of arc-shaped rolling grooves (4), the plurality of arc-shaped rolling grooves (4) are equidistantly arranged on the surface of the roller body (1), a convex portion (41) is formed between adjacent arc-shaped rolling grooves (4), and a rounded chamfered portion (42) is provided at the connection between the edge of the convex portion (41) and the arc-shaped rolling groove (4); The mounting assembly (5) comprises a mounting ring (51) fixedly mounted on the surface of the shaft head (3); a mounting sleeve (52) is sleeved on the surface of the shaft head (3); one end of the mounting sleeve (52) is fixedly connected to a fixing ring (53); threaded holes (54) are formed on the surfaces of the mounting ring (51) and the fixing ring (53); and mounting bolts (55) are threadedly connected to the interior of the threaded holes (54).

2. The low alloy high boron high speed steel roll with arc groove according to claim 1, characterized in that: A spline groove (31) is provided on the surface of the shaft head (3).

3. The low alloy high boron high speed steel roll with arc groove according to claim 1, characterized in that: The inner wall of the mounting sleeve (52) is fixedly connected with a key tooth (521).

4. The low alloy high boron high speed steel roll with arc groove according to claim 3, characterized in that: The key teeth (521) are inserted and connected inside the spline groove (31).

5. The low alloy high boron high speed steel roll with arc groove according to claim 1, characterized in that: A water inlet (6) and a water outlet (7) are provided on the side of the roller body (1).

6. The low alloy high boron high speed steel roll with arc groove according to claim 1, characterized in that: A spiral water channel is provided inside the roller body (1).

7. A low alloy high boron high speed steel roll with arc groove according to claim 6, characterized in that: Both ends of the spiral water channel are respectively connected to a water inlet (6) and a water outlet (7).

8. The low alloy high boron high speed steel roll with arc groove according to claim 1, characterized in that: The surfaces of the rotating shaft (2) and the shaft head (3) are sprayed with an anti-corrosion layer.

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