Wire rod pre-finish rolling device

Abstract

The utility model relates to the technical field of metallurgy, in particular to a wire rod pre-finish-rolling device which comprises pre-finish-rolling machines, the pre-finish-rolling machines are sequentially arranged end to end in the machining direction, roller sleeves and roller shafts are arranged at the material output ends of the pre-finish-rolling machines, the roller shafts are arranged on the roller sleeves, and the roller shafts can output wire rod steel. Wherein a cooling sound-proof chamber is arranged between every two adjacent pre-finishing mills, a cooling mechanism and a noise reduction mechanism are arranged in each cooling sound-proof chamber, the cooling mechanisms can cool the roll shafts, and the noise reduction mechanisms can reduce the noise of the roll shafts. On one hand, the heating pre-finishing mill can be cooled based on the cooling mechanism, and on the other hand, noise overflow can be effectively reduced in a sealed scene.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgy, and particularly relates to a wire pre-finishing rolling device. Background Art

[0002] In the metallurgical process, a steel rolling production line often includes a rough rolling mill, an intermediate rolling mill, a pre-finishing rolling mill and a finishing rolling mill. When processing in the pre-finishing rolling mill, the wire rod steel is often further stretched, and the overall stretching coefficient is 1.28 - 1.34. At the same time, in order to increase the area reduction efficiency, the average pass elongation of the initial 4 passes is usually 1.32 - 1.35, while in the last few passes, a smaller deformation amount is adopted, and the average pass elongation coefficient is 1.21 - 1.27. Such stretching is often accompanied by a rapid increase in the temperature of the wire rod steel and the roller shaft, and a large amount of noise.

[0003] Among them, the increased temperature will accelerate the wear of the roller shaft, and the generated noise will affect the health of the on-line workers. Most of the existing treatment methods are to use air cooling for temperature reduction, and using air cooling for temperature reduction requires an open scene, and it is impossible to properly handle the generated noise. Content of the Utility Model

[0004] The utility model aims at the above problems and provides a wire pre-finishing rolling device.

[0005] The technical solution adopted is a wire pre-finishing rolling device, which includes a pre-finishing rolling mill, and the pre-finishing rolling mills are arranged end to end in sequence according to the processing direction. A roller sleeve and a roller shaft are arranged at the material output end of the pre-finishing rolling mill. The roller shaft is arranged on the roller sleeve, and the roller shaft can output wire rod steel. A cooling and sound insulation chamber is arranged between adjacent pre-finishing rolling mills, and a cooling mechanism and a noise reduction mechanism are arranged in the cooling and sound insulation chamber. The cooling mechanism can cool the roller shaft, and the noise reduction mechanism can reduce the noise of the roller shaft.

[0006] Optionally, a ring groove is arranged on the roller shaft, and the center of the ring groove coincides with the axial direction of the roller shaft. The cooling mechanism is arranged in the ring groove.

[0007] Optionally, the cooling mechanism includes an infusion pipe, a return pipe and a coiled pipe;

[0008] The infusion pipe is used for inputting coolant;

[0009] The return pipe is used for the coolant to flow back, and the return pipe is arranged in parallel with the infusion pipe;

[0010] Both ends of the coiled pipe are respectively connected with the return pipe and the infusion pipe, and the coiled pipe can be placed in the ring groove.

[0011] Optionally, the infusion pipe and the return pipe pass through the cooling and sound insulation chamber, and a sealing ring is arranged at the connection with the cooling and sound insulation chamber.

[0012] Optionally, the noise reduction mechanism is a noise reduction plate, and the noise reduction plate covers the inner wall of the cooling and sound insulation chamber.

[0013] Optionally, the surface of the noise reduction plate is covered with mesh holes, a grille is arranged inside the noise reduction plate, and the mesh holes are communicated with the grille.

[0014] The advantages of the present utility model include:

[0015] 1. By providing a sealed cooling and sound insulation chamber, on the one hand, it can cool the heated pre-finishing mill based on the cooling mechanism therein, and on the other hand, it can effectively reduce the spread of noise in a sealed scenario.

[0016] 2. By providing a cooling mechanism including an infusion pipe, a return pipe and a coiled pipe, it cools the pre-finishing mill relying on the coolant therein. Compared with air cooling, the cooling efficiency is similar, but the overall controllability is stronger.

[0017] 3. By laying a noise reduction plate on the inner wall of the cooling and sound insulation chamber, it can absorb the noise generated between adjacent pre-finishing mills, thereby achieving the effect of noise reduction. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of a wire rod pre-finishing device;

[0019] Figure 2 It is a schematic internal structure diagram of a wire rod pre-finishing device;

[0020] Figure 3 It is a schematic structural diagram of the cooling mechanism and the pre-finishing mill;

[0021] Figure 4 It is a schematic end structure diagram of the pre-finishing mill;

[0022] Figure 5 It is a schematic structural diagram of the noise reduction plate.

[0023] Among them, the reference numerals: 1 is the pre-finishing mill, 2 is the cooling and sound insulation chamber, 3 is the wire rod steel, 4 is the infusion pipe, 5 is the roll sleeve, 6 is the roll shaft, 7 is the annular groove, 8 is the coiled pipe, 9 is the sealing ring, 10 is the noise reduction plate, 11 is the return pipe, 12 is the cooling and sound insulation cavity, 13 is the mesh hole, 14 is the grille. Detailed Embodiments

[0024] The following describes the implementation modes of the present utility model through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific implementation modes. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0025] It should be noted that the illustrations provided in the following embodiments only schematically illustrate the basic concept of the present utility model. Therefore, only the components related to the present utility model are shown in the drawings, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and proportion of each component in actual implementation can be arbitrarily changed, and the layout type of its components may also be more complex.

[0026] As Figures 1 to 4 shown, a wire pre-finishing rolling device includes a pre-finishing rolling mill 1, and the pre-finishing rolling mills 1 are arranged end to end in sequence according to the processing direction. A roller sleeve 5 and a roller shaft 6 are provided at the material output end of the pre-finishing rolling mill 1. The roller shaft 6 is arranged on the roller sleeve 5, and the roller shaft 6 can output wire steel 3. A cooling and sound insulation chamber 2 is provided between adjacent pre-finishing rolling mills 1, and a cooling mechanism and a noise reduction mechanism are provided in the cooling and sound insulation chamber 2. The cooling mechanism can cool the roller shaft 6, and the noise reduction mechanism can reduce the noise of the roller shaft 6.

[0027] The purpose of such a design is that, by providing a sealed cooling and sound insulation chamber, on the one hand, the heating pre-finishing rolling mill can be cooled based on the cooling mechanism therein, and on the other hand, the overflow of noise can be effectively reduced in a sealed scenario, solving the problem that the existing air-cooling method cannot well reduce the noise generated by the equipment while cooling.

[0028] In actual use, when the wire steel 3 is stretched by the pre-finishing rolling mill set, heat and noise are generated between adjacent pre-finishing rolling mills. The noise is isolated by the provided cooling and sound insulation chamber, and the heating area is cooled by the cooling mechanism.

[0029] In this embodiment, a ring groove 7 is provided on the roller shaft 6, and the center of the ring groove 7 coincides with the axial direction of the roller shaft 6. The cooling mechanism is arranged in the ring groove 7. At the same time, the cooling mechanism includes an infusion pipe 4, a return pipe 11, and a coil pipe 8;

[0030] The infusion pipe 4 is used for inputting coolant;

[0031] The return pipe 11 is used for the coolant to flow back, and the return pipe 11 is arranged in parallel with the infusion pipe 4;

[0032] Both ends of the coil pipe 8 are respectively connected to the liquid return pipe 11 and the liquid supply pipe 4. The coil pipe 8 can be placed into the annular groove 7. The liquid supply pipe 4 and the liquid return pipe 11 pass through the cooling and sound insulation chamber 2, and a sealing ring 9 is arranged at the connection with the cooling and sound insulation chamber 2.

[0033] The purpose of such a design is that during use, the coolant flows in through the liquid supply pipe, passes through the coil pipe. Since the coil pipe is placed in the annular groove, it can cool the roller shaft, and then flows into the liquid return pipe for liquid return cooling.

[0034] It should also be pointed out that by arranging the sealing ring in the cooling and sound insulation chamber, it can ensure that the liquid supply pipe and the liquid return pipe pass through, and at the same time prevent the generated noise from being transmitted through the connection gap.

[0035] In this embodiment, as Figure 5 shown, the noise reduction mechanism is the noise reduction board 10, and the noise reduction board 10 covers the inner wall of the cooling and sound insulation chamber 2. The surface of the noise reduction board 10 is covered with mesh holes 13. A grille 14 is arranged inside the noise reduction board 10, and the mesh holes 13 are communicated with the grille 14.

[0036] The purpose of such a design is that the noise generated between adjacent pre-finishing mills will be transmitted to the noise reduction board. Since there are mesh holes on the noise reduction board, the noise will disperse into the mesh holes. At the same time, since there is a grille inside the noise reduction board, the sound wave will gradually weaken during transmission in the grille, thus achieving noise reduction.

[0037] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A wire pre-finishing rolling device, comprising a pre-finishing rolling mill (1), and the pre-finishing rolling mills (1) are arranged in sequence end to end in the processing direction. A roller sleeve (5) and a roller shaft (6) are provided at the material output end of the pre-finishing rolling mill (1). The roller shaft (6) is arranged on the roller sleeve (5), and the roller shaft (6) can output wire rod steel (3), characterized in that, A cooling and sound insulation chamber (2) is arranged between adjacent pre-finishing mills (1), and a cooling mechanism and a noise reduction mechanism are arranged in the cooling and sound insulation chamber (2). The cooling mechanism can cool the roll shaft (6), and the noise reduction mechanism can reduce the noise of the roll shaft (6).

2. The wire pre-finishing rolling device according to claim 1, characterized in that, A ring groove (7) is arranged on the roll shaft (6), and the center of the ring groove (7) coincides with the axial direction of the roll shaft (6). The cooling mechanism is arranged in the ring groove (7).

3. A wire pre-finishing rolling device according to claim 2, characterized in that, The cooling mechanism includes an infusion pipe (4), a liquid return pipe (11) and a coil pipe (8); The infusion pipe (4) is used for inputting coolant; The liquid return pipe (11) is used for coolant reflux, and the liquid return pipe (11) is arranged parallel to the infusion pipe (4); Both ends of the coil pipe (8) are respectively connected with the liquid return pipe (11) and the infusion pipe (4), and the coil pipe (8) can be placed in the ring groove (7).

4. The wire pre-finishing rolling device according to claim 3, characterized in that, The infusion pipe (4) and the liquid return pipe (11) pass through the cooling and sound insulation chamber (2), and a sealing ring (9) is arranged at the connection with the cooling and sound insulation chamber (2).

5. A wire pre-finishing rolling device according to claim 1, characterized in that, The noise reduction mechanism is a noise reduction board (10), and the noise reduction board (10) covers the inner wall of the cooling and sound insulation chamber (2).

6. The wire pre-finishing rolling device according to claim 5, characterized in that, The surface of the noise reduction board (10) is covered with mesh holes (13), a grille (14) is arranged in the noise reduction board (10), and the mesh holes (13) are communicated with the grille (14).

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