Straightening device

Abstract

The utility model discloses a straightening device. Fixed bases are symmetrically arranged on the two sides of a roller way; a roller bed base is connected between the two fixed bases; a free roller system and a free roller hydraulic cylinder are arranged on the fixed base on one side in a sliding mode, and the free roller hydraulic cylinder is arranged on the side far away from the roller way and used for driving the free roller system to move perpendicular to the roller way. A driving roller system and a driving roller hydraulic cylinder are arranged on the fixed base on the other side in a sliding mode, and the driving roller hydraulic cylinder is arranged on the side far away from the roller way and used for driving the driving roller system to move perpendicular to the roller way. The free roller system is adopted, the driving rollers are locked through the locking cylinders, manual operation is not needed, and therefore the labor intensity of workers is effectively reduced, and meanwhile operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a straightening device. Background Art

[0002] In order to adapt to the development trends of green and low-carbon, the iron and steel industry must strive to recover heat energy, reduce energy consumption and pollutant emissions. The hot charging and hot rolling processes in the continuous casting and rolling processes have become an inevitable choice for steel enterprises. Among them, during the hot charging process, the continuous casting billets are extremely prone to excessive side bending, resulting in being unable to enter the heating furnace or the induction reheating device.

[0003] The straightening device is arranged at the furnace door of the heating furnace and the inlet of the induction reheating device, and performs on-line continuous straightening on the hot steel billets, so that the side bending reaches the standard requirements, thereby effectively reducing the rejection rate.

[0004] In the design of the existing hot steel billet straightening devices, there are also different device types; for example: the Chinese utility model patent, application number: 202011376713.X, application date: November 30, 2020, discloses a vertical hot steel billet on-line straightening machine, and its technical features are: it includes N sets of driving roll train units, N - 1 sets or N + 1 sets of moving roll train units, M conveying roller table units, and an integrated frame. The driving roll train units and the moving roll train units are alternately installed on both sides of the conveying roller table units; the straightening rolls in the driving roll train units are vertically arranged, and the drive systems in the driving roll train units are arranged below the straightening rolls. The combined action of the driving roll train units and the moving roll train units in this utility model patent straightens the hot steel billets on-line.

[0005] However, the deficiencies of this patent are as follows:

[0006] 1) The locking of the moving roll train unit is achieved by manually tightening the locking bolts, and multiple locking bolts are arranged on the top surface and the side surface of the guiding unit. When switching between the "pass-through" mode and the straightening mode and adjusting different opening degrees corresponding to straightening hot steel billets of different specifications and sizes, it is necessary for workers to loosen and tighten the locking bolts manually. This entire process not only increases the labor intensity of the workers, but also affects the rhythm of charging into the furnace.

[0007] 2) The drive system is arranged below the straightening rolls, resulting in a large distance between the drive system and the conveying roller table surface. A deep pit needs to be set here for the civil engineering, which not only increases the civil engineering workload, but also for renovation projects, there are often electrical rooms, hydraulic stations or other public auxiliary facilities under the platform in this area, and this structural form is not suitable for renovation projects of this type of situation.

[0008] 3) The drive system is arranged below the straightening rolls, which is inconvenient for maintenance and replacement. Summary of the Utility Model

[0009] In view of the above problems, the purpose of the present utility model is to provide a straightening device, so as to solve the problems that the drive system arranged under the straightening rolls is not suitable for retrofit projects, and during the adjustment of the opening of the straightening machine in the actual production process, automation cannot be achieved, resulting in high manual labor intensity and low work efficiency.

[0010] To achieve the above purpose, the straightening device of the present utility model includes:

[0011] Fixed bases are symmetrically arranged on both sides of the roller path; a roller path base is connected between the two fixed bases;

[0012] A free roller system and a free roller hydraulic cylinder are slidably arranged on one side fixed base. The free roller hydraulic cylinder is arranged on the side far from the roller path and is used to drive the free roller system to move perpendicular to the roller path;

[0013] A drive roller system and a drive roller hydraulic cylinder are slidably arranged on the other side fixed base. The drive roller hydraulic cylinder is arranged on the side far from the roller path and is used to drive the drive roller system to move perpendicular to the roller path.

[0014] Further, the free roller system includes a free roller moving base; a driven straightening roller is vertically arranged on the side of the free roller moving base close to the roller path;

[0015] Horizontal chutes are arranged on both sides of the bottom of the free roller moving base; slide rails are arranged on the corresponding fixed base corresponding to the two chutes on both sides; the chutes on both sides of the free roller moving base are slidably arranged on the slide rails.

[0016] Further, the drive roller system includes a drive roller moving base; a driving straightening roller is vertically arranged on the side of the drive roller moving base close to the roller path; a driving device is arranged on the drive roller moving base, and the driving straightening roller is in transmission connection with the driving device;

[0017] Horizontal chutes are arranged on both sides of the bottom of the drive roller moving base; slide rails are arranged on the corresponding fixed base corresponding to the two chutes on both sides; the chutes on both sides of the drive roller moving base are slidably arranged on the slide rails.

[0018] Further, the chute is a reverse U-shaped member composed of an upper corner plate with an inverted L-shaped cross-section and a pressing plate, and a sliding plate is arranged on the inner surface of the chute.

[0019] Further, the upper corner of the upper corner plate of the chute near the slide rail is a wedge surface; a locking cylinder is arranged on the fixed base corresponding to the wedge surface of the upper corner plate, and a wedge locking tongue adapted to the wedge surface is arranged at the free end of the locking cylinder.

[0020] Further, the driving device is a reduction motor, which is installed on the driving roller moving base through a bracket; the output shaft coupling of the reduction motor is connected to the shaft of the active straightening roller.

[0021] Further, the hydraulic cylinder is equipped with a displacement sensor.

[0022] Further, the sliding plate is a wear-resistant plate.

[0023] Further, the locking tongue is made of wear-resistant material; the locking tongue is connected to the piston rod through a bolt.

[0024] To achieve the above object, the multi-specification hot steel billet intelligent continuous precise straightening method of the present invention is realized based on the above-mentioned straightening device, and includes the following steps:

[0025] 1) The free roller system and the driving roller system are both in the initial position, that is, the hydraulic cylinder is in the retracted state and the locking cylinder is in the extended state;

[0026] 2) When the hot steel billet needs to be straightened, the locking cylinder retracts, and the hydraulic cylinder drives the free roller system and the driving roller system to approach the center line of the roller path at the same time; the opening degree is controlled according to the specification parameters of the hot billet fed back by the front continuous caster;

[0027] 3) After the opening degree adjustment is completed, the locking cylinder extends to fix both the free roller system and the driving roller system on the fixed base;

[0028] 4) The reduction motor starts to drive the active straightening roller to rotate, thereby straightening the hot steel billet.

[0029] The technical solution provided by the present invention has the following remarkable effects compared with the prior art:

[0030] (1) In the present invention, the free roller system 1 and the driving roller system 3 are both locked by the locking cylinder 403, and the locking cylinder 403 is hydraulically driven without manual operation, thus effectively reducing the labor intensity of workers and improving the operation efficiency at the same time;

[0031] (2) In the present invention, the free roller moving base 101 and the driving roller moving base 301 are both equipped with the first sliding plate 103, the second sliding plate 104, and the third sliding plate 105, and the sliding plates are all made of wear-resistant materials. In the actual use process, not only the service life is improved, but also the production cost is effectively reduced;

[0032] (3) The reduction motor 302 adopted by the present utility model is arranged above the straightening rolls, which is convenient for maintenance and replacement. At the same time, the basic elevation of the entire equipment is the same as the bottom elevation of the roller table frame, which is applicable to renovation projects and greatly reduces the difficulty and cost of implementing renovation projects;

[0033] A control program included in the present utility model can intelligently adjust the opening degree of a set of straightening rolls during operation according to different specifications of hot steel billets. The specification parameters of the hot steel billets can be obtained by feedback from the front-end continuous casting machine, and the opening degree of the straightening rolls 102 can be intelligently and quickly controlled through the displacement sensor signal of the hydraulic cylinder 402. The whole process is unmanned, intelligent, and has high working efficiency. Brief Description of the Drawings

[0034] Figure 1 is a schematic structural diagram of an embodiment in the present utility model;

[0035] Figure 2 is Figure 1 the sectional view taken along A-A of

[0036] Figure 3 is a schematic diagram of the free roll system of an embodiment in the present utility model;

[0037] Figure 4 is Figure 3 the view taken in the direction of K of

[0038] Figure 5 is Figure 4 the partial enlarged schematic diagram of

[0039] Figure 6 is a schematic diagram of the drive roll system of an embodiment in the present utility model;

[0040] Figure 7 is Figure 6 the sectional view taken along B-B of

[0041] Figure 8 is a schematic diagram of the fixed base of an embodiment in the present utility model;

[0042] Figure 9 is the sectional view taken along C-C of 8;

[0043] Figure 10 is Figure 1 the sectional view taken along F-F of

[0044] In the figure: 1. Free roller system; 2. Roller table base; 3. Driving roller system; 4. Fixed base; 5. Pin shaft; 101. Free roller moving base; 102. Straightening roller; 103. First slide plate; 104. Second slide plate; 105. Third slide plate; 106. Pressure plate; 301. Driving roller moving base; 302. Reducing motor; 303. Bracket; 304. Coupling; 401. Hydraulic cylinder base; 402. Hydraulic cylinder; 403. Locking cylinder frame; 404. Fixed base; 405. Wear-resistant plate Specific embodiments

[0045] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0046] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 a limitation of the present utility model.

[0047] The terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more.

[0048] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0049] Embodiment 1

[0050] Combined with Figures 1 to 10, A straightening device according to this embodiment includes a free roller system 1, a roller path base 2, a driving roller system 3, and a fixed base 4. The fixed base 4 is arranged on both sides of the roller path. The free roller system 1 and the driving roller system 3 are both placed on the fixed base 4, connected to the hydraulic cylinder 302 on the fixed base 4 through a pin shaft 5, and moved on the fixed base 4 under the action of the hydraulic cylinder 302. The free roller system 1 and the driving roller system 3 are symmetrically arranged along the center line of the roller path. The fixed base 4 is connected to the roller path base 2 through bolts.

[0051] The free roller system 1 includes a free roller moving base 101, a straightening roller 102, a first slide plate 103, a second slide plate 104, a third slide plate 105, and a pressing plate 106. The straightening roller 102 is fixed to the free roller moving base 101 through bolts. The first slide plate 103 and the second slide plate 104 are respectively fixed to the bottom surface and the side surface of the free roller moving base 101 through screws. The pressing plate 106 is fixed to the free roller moving base 101 through bolts, and the third slide plate 105 is fixed to the pressing plate 106.

[0052] The driving roller system 3 includes a driving roller moving base 301, a reduction motor 302, a bracket 303, a coupling 304, a straightening roller 102, a first slide plate 103, a second slide plate 104, a third slide plate 105, and a pressing plate 106. The straightening roller 102 and the bracket 303 are both fixed to the driving roller moving base 301 through bolts. The reduction motor 302 is connected to the straightening roller 102 through the coupling 304, and the reduction motor 302 is fixed to the bracket 303. The first slide plate 103 and the second slide plate 104 are fixed to the bottom surface and the side surface of the driving roller moving base 301 through screws. The pressing plate 106 is fixed to the driving roller moving base 301 through bolts, and the third slide plate 105 is fixed to the pressing plate 106.

[0053] The fixed base 4 includes a hydraulic cylinder base 401, a hydraulic cylinder 402, a locking cylinder 403, a fixed base 404, and a wear-resistant plate 405. The hydraulic cylinder 402 is fixed to the fixed base 404 through the hydraulic cylinder base 401, and the locking cylinder 403 is bolted to the fixed base 404.

[0054] Embodiment 2

[0055] Combined with Figure 5 、 Figure 7 、 Figure 9Description: A straightening device according to this embodiment has a structure basically the same as that of Embodiment 1, except that: the slope D1 of the free roll moving base 101 and the slope D2 of the driving roll moving base 301 both have an angle of ∠α with the horizontal direction. The slope E of the locking cylinder 403 has an angle of ∠β with the horizontal direction, and ∠α = ∠β. Preferably, ∠α = ∠β = 25 - 30°.

[0056] Embodiment 3

[0057] Combined with Figure 5 、 Figure 7 Description: A straightening device according to this embodiment has a structure basically the same as that of Embodiment 1, except that: the first slide plate 103, the second slide plate 104, and the third slide plate 105 are all made of wear-resistant materials. The first slide plate 103, the second slide plate 104, and the third slide plate 105 are symmetrically arranged along the center line N.

[0058] Embodiment 4

[0059] Combined with Figure 6 Description: A straightening device according to this embodiment has a structure basically the same as that of Embodiment 1, except that: to reduce the heat radiation of the hot steel billet to the reduction motor 302, the reduction motor 302 is a spiral bevel gear reducer and is frequency-controlled.

[0060] Embodiment 5

[0061] Combined with Figure 8 、 Figure 9 Description: A straightening device according to this embodiment has a structure basically the same as that of Embodiment 1, except that: the hydraulic cylinder 402 is equipped with a displacement sensor, preferably an in-built sensor. The locking cylinders 403 are symmetrically arranged along the center line N, and multiple are arranged in the transverse direction, preferably 2. The locking cylinders 403 lock the free roll system 1 and the driving roll system 3. A replaceable wear-resistant plate 405 is provided at the head of the locking cylinder 403, and the wear-resistant plate 405 is connected to the piston rod by bolts.

[0062] Embodiment 6

[0063] Combined with Figure 1 、 Figure 3 、 Figure 6 、 Figure 8 Description: A straightening device according to this embodiment has a structure basically the same as that of Embodiment 1, except that: it also includes a control program that can intelligently adjust the opening degree of the straightening rolls according to different specifications of the hot steel billet during operation. The specification parameters of the hot steel billet can be obtained by feedback from the front-end continuous casting machine. The implementation steps of its control program are as follows:

[0064] Step 1: The free roller system 1 and the driving roller system 3 are both in the initial position, that is, the hydraulic cylinder 402 is in the retracted state, and the locking cylinder 403 is in the extended state;

[0065] Step 2: When the hot billet needs to be straightened, the front-end continuous casting machine feeds back the specification parameters of the hot billet, the locking cylinder 403 retracts, and the hydraulic cylinder 403 drives the free roller system 1 and the driving roller system 3 to approach the center line of the roller table at the same time. According to the different specification parameters of the hot billet, the feedback signal of the displacement sensor of the hydraulic cylinder 403 controls different opening sizes.

[0066] Step 3: After the opening degree is adjusted, the locking cylinder 403 extends to fix the free roller system 1 and the driving roller system 3 on the fixed base 404 .

[0067] Step 4: The reduction motor 302 is started to drive the straightening roller 102 to rotate, thereby straightening the hot steel billet.

[0068] The utility model is described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above embodiments, and various changes can be made within the knowledge of ordinary technicians in the field without departing from the purpose of the utility model. Many other changes and modifications that do not depart from the concept and scope of the utility model should be considered as the protection scope of the utility model.

[0069] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0070] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A straightening device, characterized in that, Comprising: Fixed bases are symmetrically arranged on both sides of the roller path; a roller path base is connected between the two fixed bases; A free roller system and a free roller hydraulic cylinder are slidably arranged on one side fixed base. The free roller hydraulic cylinder is arranged on the side far from the roller path and is used to drive the free roller system to move perpendicular to the roller path; A driving roller system and a driving roller hydraulic cylinder are slidably arranged on the other side fixed base. The driving roller hydraulic cylinder is arranged on the side far from the roller path and is used to drive the driving roller system to move perpendicular to the roller path.

2. The straightening device according to claim 1, characterized in that, The free roller system includes a free roller moving base; a driven straightening roller is vertically arranged on the side of the free roller moving base close to the roller path; Chutes are horizontally arranged on both sides of the bottom of the free roller moving base; slide rails are arranged on the corresponding fixed base corresponding to the two side chutes; the chutes on both sides of the free roller moving base are slidably arranged on the slide rails.

3. The straightening device according to claim 1, wherein The driving roller system includes a driving roller moving base; a driving straightening roller is vertically arranged on the side of the driving roller moving base close to the roller path; a driving device is arranged on the driving roller moving base, and the driving straightening roller is in transmission connection with the driving device; Chutes are horizontally arranged on both sides of the bottom of the driving roller moving base; slide rails are arranged on the corresponding fixed base corresponding to the two side chutes; the chutes on both sides of the driving roller moving base are slidably arranged on the slide rails.

4. The straightening device according to claim 2 or 3, characterized in that The chute is a reverse U-shaped member composed of an upper corner plate with an inverted L-shaped cross-section and a pressing plate, and a sliding plate is arranged on the inner surface of the chute.

5. The straightening device according to claim 4, characterized in that, The upper corner of the upper corner plate of the chute near the slide rail is a wedge surface; a locking cylinder is arranged on the fixed base corresponding to the wedge surface of the upper corner plate, and a wedge locking tongue adapted to the wedge surface is arranged at the free end of the locking cylinder.

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