Straightening device for bent and deformed steel billet

Abstract

The utility model discloses a straightening device for a bending deformation steel billet. The straightening device comprises a horizontal plate, a push plate, thrust oil cylinders symmetrically arranged in pairs, a hydraulic control system, guide wheels, guide grooves and guide plates. The telescopic ends of the thrust oil cylinders are respectively connected with the bottom of the push plate; and the thrust oil cylinder is in driving connection with the hydraulic control system. According to the device, bent and deformed steel billets can be conveyed to rolled steel to be rolled after being mechanically straightened, and the quality of rolled finished products is not affected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel production, in particular to a straightening device for curved and deformed billets. BACKGROUND

[0002] In the use process of the continuous casting equipment for steelmaking, due to various reasons, the curved and deformed billets are produced at least once a month, and such billets cannot be directly put into the rolling mill for rolling, but can only be treated as scrap billets, which causes the increase of production cost.

[0003] The existing straightening device on the market cannot guarantee the reliability of the stress of each part of the billet, and cannot completely straighten the severely deformed billet to the straightness that can be reused.

[0004] The information disclosed in the background section is only intended to increase the understanding of the overall background of the present application, and should not be regarded as acknowledging or implying in any form that the information constitutes prior art known to those skilled in the art. CONTENT OF THE PRESENT INVENTION

[0005] The present application provides a straightening device for curved and deformed billets, which can straighten the billets and reduce the amount of continuous casting scrap billets, thereby reducing the production cost of steelmaking.

[0006] The present application provides a straightening device for curved and deformed billets, which comprises a horizontal plate, a push plate, a pair of symmetrically arranged push oil cylinders, a hydraulic control system, a guide wheel, a guide groove and a guide plate.

[0007] The telescopic ends of the push oil cylinders are respectively connected to the bottom of the push plate; the push oil cylinders and the hydraulic control system are drivingly connected;

[0008] The horizontal plate is fixedly arranged opposite to the push plate;

[0009] The push plate is arranged close to the guide plate; the bottom surface of the push plate is symmetrically provided with a pair of guide wheels;

[0010] The guide wheels are arranged to roll along the guide groove;

[0011] The guide groove is arranged on the side wall of the guide plate;

[0012] The guide plate is vertically arranged relative to the horizontal plate and the push plate.

[0013] Preferably, the hydraulic control system comprises a hydraulic oil cylinder, a hydraulic oil pump, a reversing valve and an electromagnetic valve; the hydraulic oil cylinder is in communication with the push oil cylinder pipeline, and the hydraulic oil pump, the reversing valve and the electromagnetic valve are arranged on the communication pipeline.

[0014] Preferably, the hydraulic control system comprises an electric control system; the electric control system is electrically connected with the hydraulic oil pump, the reversing valve and the electromagnetic valve.

[0015] Preferably, the steel billet to be straightened is placed on the push plate.

[0016] Preferably, the steel billet to be straightened has a cross-sectional size of 155-165mmx155-165mm and a length of 6m-12m.

[0017] Preferably, the frame comprises a top, a bottom plate, a connecting plate, the two ends of the connecting plate are connected to the sidewalls of the top and the bottom plate respectively and are perpendicular to the top and the bottom plate, and the guide plates are symmetrically arranged on the connecting plate.

[0018] Preferably, the fixed end of the push oil cylinder is mounted on the bottom plate.

[0019] The beneficial effects that can be produced by the present application include:

[0020] 1) The straightening device for the bent and deformed steel billet provided by the present application can send the bent and deformed steel billet to the rolling mill after mechanical straightening, and the quality of the finished product obtained by rolling is not affected.

[0021] 2) The straightening device for the bent and deformed steel billet provided by the present application has a simple structure, is easy to use, has a low cost, can realize waste recycling, and reduces resource waste. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The front view schematic diagram of the straightening device for the bent and deformed steel billet in at least one embodiment provided by the present application;

[0023] Figure 2 The front view schematic diagram of the straightening device for the bent and deformed steel billet in at least one embodiment provided by the present application; Figure 1 The A-A sectional view structural schematic diagram;

[0024] Figure 3 The front view schematic diagram of the straightening device for the bent and deformed steel billet in at least one embodiment provided by the present application;

[0025] LEGEND:

[0026] Frame 1, horizontal plate 11, push plate 131,

[0027] Push oil cylinder 14, telescopic head 141, hydraulic control system 5, conveying pipeline 51, electric control system 52, hydraulic oil pump 531, reversing valve 532, electromagnetic valve 533,

[0028] Guide wheel 122, guide groove 121, guide plate 12. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0031] Technical means not described in detail in the present application and not used to solve the technical problems of the present application are set according to common knowledge in the art, and various common knowledge setting modes can be implemented.

[0032] Referring to Figures 1-2 The straightening device for curved deformed billets provided by the present application comprises a rack 1, a horizontal plate 11, a push plate 131, a push oil cylinder 14, a telescopic head 141, a guide wheel 122, a guide groove 121 and a guide plate 12.

[0033] The horizontal plate 11 is arranged on the top of the rack 1. The push oil cylinders 14 are symmetrically arranged on the bottom of the rack 1. The guide plates 12 are symmetrically arranged on the rack 1. The guide grooves 121 are arranged on the side walls of the guide plates 12 facing the push oil cylinders 14. The push plates 131 are arranged on the telescopic ends of the push oil cylinders 14. The guide wheels 122 are symmetrically arranged on the bottom surfaces of the push plates 131. The guide wheels 122 are arranged to reciprocally roll along the guide grooves 121. The push oil cylinders 14 provide the push force from the two opposite sides of the push plate 131 to uniformly push the push plate 131 to move towards the horizontal plate 11. The curved billets to be processed are placed on the push plate 131. Since the opposite surfaces of the horizontal plate 11 and the push plate 131 are horizontal, the curved billets are corrected under the extrusion of the two opposite surfaces and the push force of the push oil cylinders 14. In order to ensure that the opposite surfaces of the curved billets are in contact with the horizontal plate 11 and the push plate 131 during the correction, the curved billets can be held by the operator to prevent the displacement of the extrusion surface and affect the straightening effect.

[0034] In a specific embodiment, the push oil cylinders 14 are driven by the hydraulic control system 5 to move the telescopic ends of the push oil cylinders 14 up and down.

[0035] In a specific embodiment, the hydraulic control system 5 is drivingly connected with the symmetrically arranged push oil cylinders 14.

[0036] In a specific embodiment, the hydraulic control system 5 comprises: a delivery pipeline 51, a hydraulic oil pump 531, a hydraulic cylinder, a reversing valve 532, an electromagnetic valve 533; the hydraulic cylinder is in communication with the thrust cylinder 14 through the delivery pipeline 51, and the communication pipeline is provided with the hydraulic oil pump 531, the reversing valve 532 and the electromagnetic valve 533.

[0037] In a specific embodiment, the hydraulic control system 5 comprises: an electric control system 52; the electric control system 52 is electrically connected with the hydraulic oil pump 531, the reversing valve 532 and the electromagnetic valve 533 respectively. Effective control of the hydraulic oil is realized to obtain the required thrust.

[0038] In a specific embodiment, the thrust cylinder 14 comprises: a telescopic head 141; the telescopic head 141 is connected with the bottom surface of the push plate 131.

[0039] In a specific embodiment, the push plate 131 and the horizontal plate 11 are rectangular plates, which are only 110% wider than the curved steel blank to ensure the reliability of the stress of the curved steel blank.

[0040] In a specific embodiment, the guide plate 12 is symmetrically arranged in the rack 1.

[0041] In a specific embodiment, the rack 1 comprises: a top plate, a bottom plate and a connecting plate; the top plate is connected with the top side wall of the connecting rod; the bottom plate and the connecting plate are connected with the bottom side wall of the connecting rod; the top plate and the bottom plate are arranged in alignment; the horizontal plate 11 is installed on the bottom surface of the top plate. The guide plate 12 is installed on the connecting plate.

[0042] The device can be used in the straightening process of curved steel blanks with a cross-sectional size of 155-165mmx155-165mm and a length of 6m-12m. After being straightened by the straightening machine, such curved steel blanks can normally pass through the rolling mill for rolling, and the finished product quality is no different from that of normal steel blanks.

[0043] In a specific embodiment, the cross-sectional size of the steel blank to be processed is 155-165mmx155-165mm, and the length is 6m-12m.

[0044] In a specific embodiment, the used straightening cylinder 2 has: Φ250 / Φ180-730 effective stroke 730mm cylinder thrust F=PS=pπr 2 , wherein F: cylinder thrust; r: piston rod radius; P: pressure of the hydraulic system during operation;

[0045] Therefore, the thrust of a single cylinder F=3.14x(250÷2)2x8=392500N≈39 tons can be calculated, and the thrust of the steel blank straightening machine is 2x39 tons=78 tons.

[0046] After the device is applied in Xianfu Steel, the economic benefits obtained are:

[0047] According to the prior art, about 22 steel billets are scrapped every month due to deformation and bending, each of which is 1.8 tons, so that 22x1.8x12 months=475.2 tons of scrap steel billets can be reduced every year. According to the cost of smelting the scrap steel into qualified steel billets of 500 yuan / ton, the steelmaking cost can be reduced by 475.2 tons x 500 yuan=237600 yuan every year, and the recycling of the scrapped steel billets is realized.

[0048] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A straightening device for bent and deformed steel billets, characterized in that, include: Horizontal plate (11), push plate (131), thrust cylinders (14) arranged in pairs symmetrically, hydraulic control system (5), guide wheel (122), guide groove (121), guide plate (12); The telescopic ends of the thrust cylinder (14) are connected to the bottom of the push plate (131); the thrust cylinder (14) and the hydraulic control system (5) are connected in a drive configuration. The horizontal plate (11) is fixedly installed opposite the push plate (131); The push plate (131) is positioned close to the guide plate (12); guide wheels (122) are symmetrically arranged in pairs on the bottom surface of the push plate (131); The guide wheel (122) is rolled along the guide groove (121); The guide groove (121) is provided on the side wall of the guide plate (12); The guide plate (12) is set vertically relative to the horizontal plate (11) and the push plate (131).

2. The straightening device for bent and deformed steel billets according to claim 1, characterized in that, The hydraulic control system (5) includes: a hydraulic cylinder, a hydraulic pump (531), a directional valve (532), and a solenoid valve (533); the hydraulic cylinder is connected to the thrust cylinder (14) via pipelines, and the hydraulic pump (531), directional valve (532), and solenoid valve (533) are installed at intervals on the connecting pipelines.

3. The straightening device for bent and deformed steel billets according to claim 2, characterized in that, The hydraulic control system (5) includes an electrical control system (52); the electrical control system (52) is electrically connected to the hydraulic oil pump (531), the directional valve (532), and the solenoid valve (533).

4. The straightening device for bent and deformed steel billets according to claim 1, characterized in that, The steel billet to be straightened is placed on the push plate (131).

5. The straightening device for bent and deformed steel billets according to claim 4, characterized in that, The cross-sectional dimensions of the steel billet to be straightened are 155-165mm x 155-165mm, and the length is 6m-12m.

6. The straightening device for bent and deformed steel billets according to claim 1, characterized in that, include: Rack (1); The frame (1) includes: a top plate, a bottom plate, and a connecting plate; the two ends of the connecting plate are connected to the side walls of the top plate and the bottom plate respectively, and are perpendicular to the top plate and the bottom plate; guide plates (12) are symmetrically arranged on the connecting plate.

7. The straightening device for bent and deformed steel billets according to claim 6, characterized in that, The fixed end of the thrust cylinder (14) is mounted on the base plate.

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