Simple steel plate pre-bending device

Abstract

The utility model provides a simple steel plate pre-bending device which comprises a base, two supporting frames are symmetrically arranged on the base, an operation space is formed between the two supporting frames, a jack is installed on a cross beam at the top ends of the supporting frames, the jack is vertically arranged, and an I-shaped steel mold is hung below the cross beam through a hanging assembly. The I-shaped steel mold is located on the lower side of the jack and detachably connected with the hanging assembly. Supporting feet are arranged at the included angle positions of the two supporting frames and the base respectively. The tunnel lining steel plate pre-bending device is simple in structure and convenient to operate, and the manufacturing progress and control quality of tunnel lining steel plate pre-bending can be effectively improved. By replacing different I-shaped steel molds, the steel plate pre-bending device can be suitable for any curvature of the pre-bending steel plate, the use range is expanded, the applicability is high, operation and control are convenient, by applying the steel plate pre-bending device, the construction efficiency of the pre-bending steel plate can be improved, the welding quality of splicing of the pre-bending steel plate and a steel frame is improved, and economic benefits are remarkable.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of building construction, and particularly relates to a simple pre-bending steel plate device. BACKGROUND

[0002] When a newly-built high-speed railway tunnel crosses an existing passenger and freight combined tunnel, in order to ensure the safety of the existing railway operation, the lining of the existing tunnel needs to be relined. Since the existing tunnel lining was constructed a long time ago, the tunnel lining is constructed by assembling and pouring block templates. In the early stage of tunnel construction, there was no advanced tooling, and the quality of construction control was generally poor. Therefore, the surface of the side wall and arch of the existing tunnel lining is seriously out of level, and the flatness is poor, which brings great construction difficulty to the present relining construction. In order to ensure the train operation clearance and the safety distance of the catenary power supply, grooving and embedding H-shaped steel frames are needed on the surface of the existing tunnel lining. Since the flatness of the surface of the existing tunnel lining is poor, in order to reduce the number of chiseling and removing of the existing tunnel lining, the design of all relining steel frame parts is usually optimized. If the radius of each ring steel plate is of an independent size, the pre-bending of the steel plate will be difficult, and the work efficiency and assembly quality will be seriously reduced. Therefore, it is necessary to develop and design a device capable of conveniently preforming an arc-shaped steel plate. SUMMARY

[0003] Therefore, the application aims to overcome the defects in the prior art and provides a simple pre-bending steel plate device.

[0004] To achieve the above-mentioned purpose, the technical scheme of the application is as follows:

[0005] A simple pre-bending steel plate device comprises a base, two support frames are symmetrically arranged on the base, an operation space is formed between the two support frames, a jack is installed on the cross beam at the top end of the support frame, the jack is vertically arranged, and an I-beam mold is hung below the cross beam through a hanging assembly, the I-beam mold is located on the lower side of the jack, and the I-beam mold and the hanging assembly are detachably connected; and a support leg is arranged at the position of the included angle between the two support frames and the base.

[0006] Further, the support leg is made of a steel pipe, the steel pipe is arranged horizontally in the axial direction, and a reinforcing support is arranged on the inner side of the steel pipe.

[0007] Further, the lower end surface of the I-beam mold is in an arc-shaped structure.

[0008] Further, the hanging assembly comprises a tension spring, the upper end of the tension spring is provided with a hanging steel wire, the lower end is provided with a connecting steel wire, the hanging steel wire is connected to the cross beam, and the locking steel wire is connected to the I-beam mold.

[0009] Further, the upper end surface of the I-beam mold is provided with a locking nut, and the locking steel wire is connected to the locking nut.

[0010] Further, the locking nut is welded to the I-shaped steel, and the locking nut is arranged horizontally in the axial direction.

[0011] Further, the upper end of the jack is detachably connected to the cross beam.

[0012] Further, the support frame and the base are welded, and the cross beam and the support frame are welded.

[0013] Compared with the prior art, the application has the following advantages:

[0014] The application has simple structure and convenient operation, and can effectively improve the production progress and control quality of the pre-bent steel plate of the tunnel sleeve. By replacing different I-shaped steel molds, the pre-bent steel plate device can be applied to any curvature of the pre-bent steel plate, thereby expanding the application range, being suitable for operation and control, speeding up the construction efficiency of the pre-bent steel plate, improving the welding quality of the pre-bent steel plate and the steel frame splicing, and achieving remarkable economic benefits. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings, which form a part of the present application, are used to provide a further understanding of the present application and are incorporated herein for illustrative purposes. The illustrative embodiments of the present application and their description serve to explain the present application. In the drawings:

[0016] Figure 1 The accompanying drawings, which form a part of the present application, are used to provide a further understanding of the present application and are incorporated herein for illustrative purposes. The illustrative embodiments of the present application and their description serve to explain the present application. In the drawings: DETAILED DESCRIPTION

[0017] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0018] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0019] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0020] The invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] A simple pre-bending steel plate device, such as Figure 1 As shown, the system includes a base 1, on which two symmetrical support frames 2 are arranged, forming an operating space between the two support frames. A jack 4 is installed on a crossbeam 3 at the top of the support frames. The jack is vertically arranged, and an I-beam mold 5 is suspended below the crossbeam by a suspension assembly. The I-beam mold is located below the jack, and the I-beam mold is detachably connected to the suspension assembly. As an example, a 10t hydraulic jack is used.

[0022] The suspension assembly includes a tension spring 8, with a suspension wire 9 at the upper end and a connecting wire 10 at the lower end. The suspension wire is connected to the crossbeam, and the locking wire is connected to the I-beam mold. A locking nut 11 is provided on the upper surface of the I-beam mold, and the locking wire and the locking nut are detachably connected. Specifically, the locking nut is welded and fixed to the I-beam, and the locking nut is arranged horizontally along its axis.

[0023] The lower end face of the I-beam mold has an arc-shaped structure. Support legs 6 are respectively provided at the angle between the two support frames and the base. For example, the support legs are made of steel pipes, arranged horizontally along the axis, and reinforced with support members 7 inside the steel pipes. These support members can be made of shaped steel sections, with rectangular steel sections inserted into the steel pipes to strengthen the support leg structure. The upper end of the jack is detachably connected to the crossbeam. The support frames and base, as well as the crossbeam and support frames, are all welded and fixed.

[0024] In application, the steel plate 12 to be bent is placed in the operating space, with two support legs supporting both sides of the plate. Then, the jack is activated, driving the I-beam mold downwards, applying downward pressure to the center of the steel plate until it is bent into shape. The curvature of the I-beam mold corresponds to the curvature of the steel plate, offering strong controllability and good consistency in bending. By changing different I-beam molds, steel plates with different curvatures can be pressed.

[0025] The application has simple structure, convenient operation, can effectively improve the production progress and control quality of the pre-bent tunnel lining steel plate, can be applied to any curvature of the pre-bent steel plate by replacing different I-shaped steel molds, expands the use range, has strong applicability, is convenient to operate and control, can speed up the construction efficiency of the pre-bent steel plate, improve the welding quality of the pre-bent steel plate and steel frame splicing, and has remarkable economic benefits.

[0026] The above merely describes the preferred embodiments of the application, and is not intended to limit the application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A simple pre-bending steel plate device, characterized by: The base is provided with two symmetrical support frames, and an operation space is formed between the two support frames; a jack is arranged on the crossbeam at the top of the support frame; the jack is vertically arranged; an I-beam mold is hung below the crossbeam through a hanging assembly; the I-beam mold is arranged at the lower side of the jack; and the I-beam mold is detachably connected with the hanging assembly; and a supporting leg is arranged at the position of the included angle between the two support frames and the base.

2. The device for pre-bending steel plate according to claim 1, characterized in that: The supporting leg is made of a steel pipe, which is arranged horizontally along the axial direction and is provided with a reinforcing support inside.

3. The device for pre-bending steel plate according to claim 1, characterized in that: The lower end surface of the I-beam mold is in an arc structure.

4. The device for pre-bending steel plate according to claim 1, characterized in that: The hanging assembly comprises a tension spring, the upper end of the tension spring is provided with a hanging steel wire, the lower end is provided with a connecting steel wire, the hanging steel wire is connected to the crossbeam, and the locking steel wire is connected to the I-beam mold.

5. The device for pre-bending steel plate according to claim 4, characterized in that: The upper end surface of the I-beam mold is provided with a locking nut, and the locking steel wire is connected to the locking nut.

6. The device for pre-bending steel plate according to claim 5, characterized in that: The locking nut is welded and fixed to the I-beam, and is arranged horizontally along the axial direction.

7. The device for pre-bending steel plate according to claim 1, characterized in that: The upper end of the jack is detachably connected to the crossbeam.

8. The device for pre-bending steel plate according to claim 1, characterized in that: The support frame and the base, and the crossbeam and the support frame are welded and fixed.

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