CN212703744U

CN212703744U - Porous angle steel straightening roll collar

Info

Publication number: CN212703744U
Application number: CN202021260747.8U
Authority: CN
Inventors: 蒋卫平; 蒋志芳; 周青; 王亮; 钱秋虎
Original assignee: Changzhou Ruihong Roll Co ltd
Current assignee: Changzhou Ruihong Roll Co ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2021-03-16
Anticipated expiration: 2030-07-01

Abstract

The utility model discloses a porous angle steel straightening roll collar, which is provided with an upper roll collar and a lower roll collar, wherein an upper shaft hole is arranged along the axial direction of the upper roll collar, a plurality of upper straightening pass are evenly arranged along the length direction of the upper roll collar, and the upper straightening pass is split along the upper and lower directions to obtain an upper triangular groove which is concave downwards and a lower triangular groove which is concave upwards; a lower shaft hole is formed in the axial direction of the lower roll collar, a plurality of lower straightening pass are uniformly arranged in the length direction of the lower roll collar, and the lower straightening pass is split in the vertical direction to obtain an upper convex triangular bump and a lower convex triangular bump; the upper triangular lug of the lower roll collar is engaged and embedded into the lower triangular groove of the upper roll collar in a matching way. The multi-hole angle steel straightening roll collar greatly improves the efficiency of angle steel straightening operation, reduces cost, improves efficiency and saves resources.

Description

Porous angle steel straightening roll collar

Technical Field

The utility model belongs to the technical field of the technique of collars and specifically relates to a porous angle steel straightening collar.

Background

In the production of the angle steel, various hot rolled angle steels have bending phenomena of different degrees, and the standard angle steels are required to be shaped, cut and sized by a straightening machine when the standard angle steels are required to be finished. In general, since the straightening roll rings used in the straightening machine are arranged in a single hole in the upper and lower directions, the angle steels are operated one by one in the operation of the straightening machine.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: in order to overcome the defects in the prior art, the porous angle steel straightening roll collar is provided, the efficiency of angle steel straightening operation is greatly improved, the cost is reduced, the efficiency is improved, and resources are saved.

The utility model provides a technical scheme that its technical problem adopted is: a multi-hole angle steel straightening roll collar is provided with an upper roll collar and a lower roll collar, wherein an upper shaft hole is formed in the axial direction of the upper roll collar, a plurality of upper straightening pass are uniformly arranged in the length direction of the upper roll collar, and the upper straightening pass is split in the vertical direction to obtain an upper triangular groove which is downward concave and a lower triangular groove which is upward concave; a lower shaft hole is formed in the axial direction of the lower roll collar, a plurality of lower straightening pass are uniformly arranged in the length direction of the lower roll collar, and the lower straightening pass is split in the vertical direction to obtain an upper convex triangular bump and a lower convex triangular bump; the upper triangular lug of the lower roll collar is engaged and embedded into the lower triangular groove of the upper roll collar in a matching way.

More specifically, in the above technical solution, the length of the upper roll collar is the same as the length of the lower roll collar.

More specifically, in the above technical solution, the diameter of the upper shaft hole is the same as the diameter of the lower shaft hole.

More specifically, in the above technical solution, the number of the upper straightening pass is the same as the number of the lower straightening pass.

More specifically, in the above technical solution, the corners of the upper triangular groove, the lower triangular groove, the upper triangular projection and the lower triangular projection are provided with chamfers.

The utility model has the advantages that: the utility model provides a porous angle steel aligning collars has improved the efficiency of angle steel aligning operation by a wide margin, and cost reduction increases, and resources are saved gains better availability factor and economic benefits, the extensive popularization and use of being convenient for.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

The reference numbers in the figures are: 1. an upper roll collar; 2. a lower roll collar; 3. an upper shaft hole; 4. an upper straightening hole pattern; 4-1, arranging a triangular groove; 4-2, lower triangular grooves; 5. a lower shaft hole; 6. a lower straightening hole pattern; 6-1, arranging a triangular bump; 6-2 and a lower triangular bump.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "one side", "the other side", "both sides", "between", "middle part", "upper end", "lower end", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the multi-hole angle steel straightening roll ring of the present invention has an upper roll ring 1 and a lower roll ring 2, an upper shaft hole 3 is arranged along the axial direction of the upper roll ring 1, a plurality of upper straightening pass 4 are uniformly arranged along the length direction of the upper roll ring 1, and the upper straightening pass 4 is cut along the up-down direction to obtain an upper triangular groove 4-1 which is downward concave and a lower triangular groove 4-2 which is upward concave; a lower shaft hole 5 is arranged along the axial direction of the lower roll collar 2, a plurality of lower straightening pass 6 are uniformly arranged along the length direction of the lower roll collar 2, and the lower straightening pass 6 is cut along the up-down direction to obtain an upper convex triangular bump 6-1 protruding upwards and a lower convex triangular bump 6-2 protruding downwards; the upper triangular lug 6-1 of the lower roll collar 2 is engaged and embedded into the lower triangular groove 4-2 of the upper roll collar 1.

Wherein, the length of the upper roller ring 1 is the same as that of the lower roller ring 2. The diameter of the upper shaft hole 3 is the same as that of the lower shaft hole 5. The number of the upper straightening holes 4 is the same as that of the lower straightening holes 6. The corners of the upper triangular groove 4-1, the lower triangular groove 4-2, the upper triangular bump 6-1 and the lower triangular bump 6-2 are provided with chamfers.

The manufacturing method of the porous angle steel straightening roll collar comprises the following specific processes:

the roll collar comprises the following chemical components in parts by weight: 3.00 to 3.50 percent of carbon, 1.20 to 1.80 percent of silicon, 0.40 to 0.80 percent of manganese, less than or equal to 0.05 percent of phosphorus, less than or equal to 0.03 percent of sulfur, 3.20 to 3.60 percent of nickel, 0.60 to 0.80 percent of molybdenum, 0.40 to 0.80 percent of chromium, and more than or equal to 0.04 percent of magnesium.

Smelting and pouring: 1. adding furnace burden, smelting, heating to 1320-1350 ℃, removing slag, adding 2-3 kg of yttrium-based heavy rare earth molten iron modifier, removing impurity elements by using active elements in rare earth, purifying molten iron, heating to 1410-1430 ℃, discharging two thirds of molten iron, performing spheroidization by using a flushing method, inoculating the spheroidization agent by using nickel-magnesium alloy, adding a proper amount of 75SiFe for the first time, supplementing one third of molten iron, adding a proper amount of 75SiFe for the second time, and stirring for 30-60 seconds by using an electromagnetic stirrer; 2. pouring, pouring molten iron into the ladle quantitative pressure bottom casting when the temperature of the molten iron is 1320-1340 ℃, and performing third continuous stream inoculation by using 0.05-0.08% of silicon, so that the spheroidization quality and the spheroidization grade are further improved, and as-cast bainite is formed.

Thirdly, heat treatment: and (3) unpacking the roll collar, then loading the roll collar into a furnace for low-temperature tempering, heating the roll collar to 10-15 ℃ per hour, preserving the heat for 4 hours when the roll temperature reaches 280 ℃, heating the roll collar again to 15 ℃/hour, preserving the heat for 6 hours when the roll temperature reaches 420-440 ℃, then cooling the furnace, discharging the roll collar from the furnace after normal temperature, roughly processing the roll collar to eliminate casting stress, and then continuously tempering for 2 times.

Fourthly, the hardness of the roll collar is 63-68 HSD; the tensile strength of the roll collar is more than or equal to 380 MPa; metallographic structure of the roll collar matrix: spheroidized graphite, metal type fine grained carbide and bainite.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A porous angle steel straightening roll collar is characterized in that: the roll forming device is provided with an upper roll ring (1) and a lower roll ring (2), an upper shaft hole (3) is arranged along the axial direction of the upper roll ring (1), a plurality of upper straightening pass (4) are uniformly arranged along the length direction of the upper roll ring (1), and the upper straightening pass (4) is cut along the up-down direction to obtain an upper triangular groove (4-1) which is concave downwards and a lower triangular groove (4-2) which is concave upwards; a lower shaft hole (5) is formed in the axial direction of the lower roll collar (2), a plurality of lower straightening pass (6) are uniformly arranged in the length direction of the lower roll collar (2), and the lower straightening pass (6) is split in the vertical direction to obtain an upper convex triangular bump (6-1) protruding upwards and a lower convex triangular bump (6-2) protruding downwards; an upper triangular lug (6-1) of the lower roll collar (2) is matched, meshed and embedded into a lower triangular groove (4-2) of the upper roll collar (1).

2. The perforated angle iron straightening roll ring according to claim 1, characterized in that: the length of the upper roll collar (1) is the same as that of the lower roll collar (2).

3. The perforated angle iron straightening roll ring according to claim 1, characterized in that: the diameter of the upper shaft hole (3) is the same as that of the lower shaft hole (5).

4. The perforated angle iron straightening roll ring according to claim 1, characterized in that: the number of the upper straightening hole patterns (4) is the same as that of the lower straightening hole patterns (6).

5. The perforated angle iron straightening roll ring according to claim 1, characterized in that: the corners of the upper triangular groove (4-1), the lower triangular groove (4-2), the upper triangular bump (6-1) and the lower triangular bump (6-2) are provided with chamfers.