Coated large special steel structure welding preheating device

Abstract

The utility model relates to the technical field of steel structure welding, in particular to a cladding type large special steel structure welding preheating device which comprises a movable base and a heater, and the upper end face of the movable base is fixedly connected with a supporting frame. And the lifting adjusting assembly comprises a ball screw rotationally connected to the inner top face of the supporting frame body, the ball screw is in threaded connection with a lifting sliding block, the outer wall of the lifting sliding block is fixedly connected with two lifting guide rods, and the upper ends of the two lifting guide rods penetrate through the supporting frame body and are fixedly connected with a preheating platform. The height positions and the heating angles of the preheating platform and the heater can be conveniently adjusted, so that the welding preheating position of a steel structure is conveniently adjusted, the welding preheating operation efficiency of the steel structure is improved, the welding preheating position of the steel structure can be fully and uniformly heated, the heating uniformity of the welding position of the steel structure is improved, and the welding quality of the steel structure is improved. And the welding preheating effect of the steel structure is ensured.

Description

Technical Field

[0001] This utility model relates to the field of steel structure welding technology, specifically to a cladding-type preheating device for welding large special steel structures. Background Technology

[0002] Steel structures are structures assembled from steel materials such as steel profiles and steel plates through welding, bolting, and other methods. Steel structures have characteristics such as high strength, light weight, fast construction speed, and recyclability, and are widely used in industrial plants, high-rise buildings, bridges, and other fields. Encased large special steel structures are structural forms that are based on large steel structures and are encased with special materials to meet specific functional requirements. They are often used in special scenarios with high requirements for safety and functionality, such as nuclear power plants and large data centers.

[0003] Existing technologies often have the following problems when used:

[0004] Preheating is usually required when welding steel structures to reduce welding stress and deformation. Currently, manual hand-held heating guns are commonly used to preheat the welding positions of clad steel structures. However, manual welding is not convenient for adjusting the preheating position of large special steel structures, which affects the efficiency of steel structure welding preheating operations. Furthermore, it is difficult to ensure the uniformity of heating at the welding position during the preheating process, thus affecting the preheating effect of steel structure welding. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a preheating device for welding large special steel structures with a covering, which can effectively solve the problems that the manual welding method in the existing technology is not convenient for adjusting the welding preheating position of the covered large special steel structure, which affects the efficiency of the steel structure welding preheating operation, and the difficulty in ensuring the uniformity of heating of the welding position during the preheating process, which affects the preheating effect of the steel structure welding.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a preheating device for welding large-scale special steel structures with a covering type, comprising:

[0008] A movable base and a heater, wherein a support frame is fixedly connected to the upper surface of the movable base;

[0009] A lifting adjustment assembly includes a ball screw rotatably connected to the top surface of a support frame, a lifting slider threaded onto the ball screw, two lifting guide rods fixedly connected to the outer wall of the lifting slider, the upper ends of the two lifting guide rods penetrating the support frame and fixedly connected to a preheating platform, and a lifting limit component fixedly connected to the upper surface of the movable base, the lifting limit component being used to limit the up and down movement of the lifting slider;

[0010] A uniform preheating component is rotatably connected to the preheating platform. The uniform preheating component is used to improve the preheating position adjustment range of the heater and the preheating uniformity of the heater on the steel structure.

[0011] Furthermore, the lifting adjustment assembly also includes a low-speed motor fixedly installed on the lower end face of the movable base, and the output end of the low-speed motor is fixedly connected to the lower end of the ball screw.

[0012] Furthermore, the lifting and limiting component includes a limiting guide rail fixedly connected to the upper surface of the movable base. The limiting guide rail has a concave structure, and the lifting slider slides in cooperation with the limiting guide rail.

[0013] Furthermore, the uniform preheating assembly includes a splined shaft and a reciprocating screw rotatably connected to the preheating platform. A sleeve is slidably connected to the outer peripheral wall of the splined shaft, and a connecting block is rotatably connected to the outer peripheral wall of the sleeve. A translation guide block is threaded onto the reciprocating screw, and the upper end face of the translation guide block is fixedly connected to the lower end face of the connecting block through an I-beam frame.

[0014] Furthermore, the uniform preheating assembly also includes a transfer bracket fixedly connected to the outer peripheral wall of the sleeve, the heater is fixedly installed on the upper end face of the transfer bracket, and a stepper motor and a rotary motor are fixedly installed on the outer wall of the preheating platform. The output end of the stepper motor is fixedly connected to the end of the spline shaft, and the output end of the rotary motor is fixedly connected to the end of the reciprocating lead screw.

[0015] Furthermore, a number of self-driving wheels are fixedly installed on the lower end face of the mobile base.

[0016] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0017] This invention includes a lifting and adjusting component. By controlling a low-speed motor to drive the ball screw to rotate, the lifting slider begins to move the lifting guide rod up and down, thereby facilitating the adjustment of the height of the preheating platform and the heater. This allows for adjustment of the welding preheating position of the steel structure, which is beneficial to improving the efficiency of steel structure welding preheating operations.

[0018] This invention incorporates a uniform preheating component. By controlling a stepper motor to drive the spline shaft to rotate, the adapter bracket and the heater can rotate synchronously at a certain angle to adjust the heating angle of the heater, thereby increasing the adjustment range of the preheating position for steel structure welding and further improving the efficiency of steel structure welding preheating operations. Simultaneously, by controlling a rotary motor to drive the reciprocating screw to rotate, the translation guide block can drive the heater to move horizontally back and forth, so as to fully and uniformly heat the preheating position of the steel structure welding, improve the uniformity of heating at the welding position, and help ensure the preheating effect of steel structure welding. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a cross-sectional view of the supporting frame structure in this utility model;

[0022] Figure 3 This is a schematic diagram of the spline shaft structure in this utility model;

[0023] Reference numerals in the attached drawings: 1. Movable base; 2. Heater; 3. Support frame; 4. Ball screw; 5. Lifting slider; 6. Lifting guide rod; 7. Preheating platform; 8. Low-speed motor; 9. Limit guide rail; 10. Splined shaft; 11. Reciprocating screw; 12. Sleeve; 13. Connecting block; 14. Translation guide block; 15. Adapter bracket; 16. Stepper motor; 17. Rotary motor; 18. Self-driving bottom wheel. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] The present invention will be further described below with reference to the embodiments.

[0026] Example: Refer to Figures 1 to 3A large-scale special steel structure welding preheating device with a wrap-around design includes: a movable base 1, a heater 2, and a lifting adjustment component. A support frame 3 is fixedly connected to the upper end face of the movable base 1, and several self-driving wheels 18 are fixedly installed on the lower end face of the movable base 1. The lifting adjustment component includes a ball screw 4 rotatably connected to the inner top surface of the support frame 3. A lifting slider 5 is threadedly connected to the ball screw 4. Two lifting guide rods 6 are fixedly connected to the outer wall of the lifting slider 5. The upper ends of the two lifting guide rods 6 pass through the support frame 3 and are fixedly connected to a preheating platform 7. A lifting limit component is fixedly connected to the upper end face of the movable base 1. The lifting limit component is used to limit the up and down movement of the lifting slider 5. The lifting limit component includes a limit guide rail 9 fixedly connected to the upper end face of the movable base 1. The limit guide rail 9 has a concave structure, and the lifting slider 5 slides in cooperation with the limit guide rail 9.

[0027] The ball screw 4 is driven to rotate by the low-speed motor 8, which causes the lifting slider 5 to move up and down along the lifting guide rod 6. The sliding cooperation between the limit guide rail 9 and the lifting slider 5 can fully limit the lifting movement of the lifting slider 5 and the preheating platform 7, ensuring the stability of the height position adjustment of the preheating platform 7. This allows for easy adjustment of the height position of the preheating platform 7 and the heater 2. Furthermore, the movement of the self-driving bottom wheel 18 facilitates the adjustment of the welding preheating position of the steel structure, which helps to improve the efficiency of the steel structure welding preheating operation.

[0028] Reference Figure 1 and Figure 3 A uniform preheating component is rotatably connected to the preheating platform 7. The uniform preheating component is used to improve the preheating position adjustment range of the heater 2 and the preheating uniformity of the heater 2 on the steel structure. The uniform preheating component includes a spline shaft 10 and a reciprocating screw 11 rotatably connected to the preheating platform 7. A sleeve 12 is slidably connected to the outer peripheral wall of the spline shaft 10. A connecting block 13 is rotatably connected to the outer peripheral wall of the sleeve 12. A translation guide block 14 is threadedly connected to the reciprocating screw 11. The upper end face of the translation guide block 14 is fixedly connected to the lower end face of the connecting block 13 through an I-beam frame. The uniform preheating component also includes a transition bracket 15 fixedly connected to the outer peripheral wall of the sleeve 12. The heater 2 is fixedly installed on the upper end face of the transition bracket 15. A stepper motor 16 and a rotary motor 17 are fixedly installed on the outer wall of the preheating platform 7. The output end of the stepper motor 16 is fixedly connected to the end of the spline shaft 10, and the output end of the rotary motor 17 is fixedly connected to the end of the reciprocating screw 11.

[0029] The stepper motor 16 drives the spline shaft 10 to rotate, enabling the sleeve 12, adapter bracket 15, and heater 2 to rotate synchronously by a certain angle. This adjusts the heating angle of the heater 2, increases the adjustment range of the preheating position for steel structure welding, and further improves the efficiency of steel structure welding preheating. Simultaneously, the rotary motor 17 drives the reciprocating screw 11 to rotate, allowing the translation guide block 14 to drive the connecting block 13, sleeve 12, and heater 2 to move horizontally back and forth. This ensures that the heater 2 can fully and evenly heat the preheating position for steel structure welding, thereby improving the uniformity of heating at the welding position and ensuring the preheating effect of steel structure welding.

[0030] The working principle of this utility model is as follows:

[0031] 1. When in use, if it is necessary to adjust the preheating position of the steel structure welding, the low-speed motor 8 can be started. The low-speed motor 8 drives the ball screw 4 to rotate, so that the lifting slider 5 starts to drive the lifting guide rod 6 to move up and down. The sliding cooperation between the limit guide rail 9 and the lifting slider 5 can fully limit the lifting movement of the lifting slider 5 and the preheating platform 7, ensuring the stability of the height position adjustment of the preheating platform 7. In this way, the height position of the preheating platform 7 and the heater 2 can be easily adjusted. Through the movement cooperation of the self-driving bottom wheel 18, the welding preheating position of the steel structure can be easily adjusted, which is conducive to improving the efficiency of the steel structure welding preheating operation.

[0032] 2. When adjusting the preheating position for steel structure welding, the stepper motor 16 can be started as needed to drive the spline shaft 10 to rotate, so that the sleeve 12, the adapter bracket 15 and the heater 2 can rotate synchronously at a certain angle to adjust the heating angle of the heater 2, thereby increasing the adjustment range of the preheating position for steel structure welding and further improving the efficiency of steel structure welding preheating. At the same time, the reciprocating screw 11 can be driven to rotate by controlling the rotary motor 17, so that the translation guide block 14 can drive the connecting block 13, the sleeve 12 and the heater 2 to move horizontally back and forth, so that the heater 2 can fully and evenly heat the preheating position for steel structure welding, thereby improving the uniformity of heating at the steel structure welding position and helping to ensure the preheating effect of steel structure welding.

[0033] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A large special steel structure welding preheating device, characterized in that, Include: Mobile base (1) and heater (2), the upper end surface of the mobile base (1) is fixedly connected with the support frame (3); Lifting adjustment assembly, the lifting adjustment assembly includes a ball screw (4) rotatably connected to the inner top surface of the support frame (3), a lifting slider (5) threadedly connected to the ball screw (4), two lifting guide rods (6) fixedly connected to the outer wall of the lifting slider (5), two lifting guide rods (6) penetrating the support frame (3) at the upper end and fixedly connected with a preheating platform (7), the upper end surface of the mobile base (1) is fixedly connected with a lifting limiting component, the lifting limiting component is used to limit the up-down movement of the lifting slider (5); The preheating platform (7) is rotatably connected with a uniform preheating assembly, the uniform preheating assembly is used to improve the preheating position adjustment range of the heater (2) and the preheating uniformity of the heater (2) to the steel structure.

2. The large special steel structure welding preheating device according to claim 1, characterized in that, The lifting adjustment assembly further includes a low-speed motor (8) fixedly installed on the lower end surface of the mobile base (1), and the output end of the low-speed motor (8) is fixedly connected with the lower end of the ball screw (4).

3. The large special steel structure welding preheating device according to claim 1, characterized in that, The lifting limiting component includes a limiting guide rail (9) fixedly connected to the upper end surface of the mobile base (1), the limiting guide rail (9) is arranged in a concave structure, and the lifting slider (5) is in sliding fit with the limiting guide rail (9).

4. The large special steel structure welding preheating device according to claim 1, characterized in that, The uniform preheating assembly includes a spline shaft (10) rotatably connected to the preheating platform (7) and a reciprocating screw (11), the spline shaft (10) is slidably connected with a sleeve (12), the sleeve (12) is rotatably connected with a connecting block (13), the reciprocating screw (11) is threadedly connected with a translation guide block (14), and the upper end surface of the translation guide block (14) is fixedly connected with the lower end surface of the connecting block (13) through a work-type frame.

5. The large special steel structure welding preheating device according to claim 4, characterized in that, The uniform preheating assembly further includes an adapter bracket (15) fixedly connected to the outer peripheral wall of the sleeve (12), the heater (2) is fixedly installed on the upper end surface of the adapter bracket (15), the preheating platform (7) is fixedly installed with a stepping motor (16) and a rotary motor (17) on the outer wall, the output end of the stepping motor (16) is fixedly connected with the end portion of the spline shaft (10), and the output end of the rotary motor (17) is fixedly connected with the end portion of the reciprocating screw (11).

6. The large special steel structure welding preheating device according to claim 1, characterized in that, A plurality of self-driven bottom wheels (18) are fixedly installed on the lower end surface of the mobile base (1).

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