CN215787672U

CN215787672U - Large-scale special steel structure welding preheating device

Info

Publication number: CN215787672U
Application number: CN202121670626.5U
Authority: CN
Inventors: 周忠华
Original assignee: Jiangsu Qiangyu Steel Structure Co ltd
Current assignee: Jiangsu Qiangyu Steel Structure Co ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2022-02-11
Anticipated expiration: 2031-07-22

Abstract

The utility model belongs to the technical field of steel structure welding, in particular to a large special steel structure welding preheating device, and provides a scheme aiming at the problems in the background technology. The preheating device is provided with the preheating mechanism, so that the working efficiency of the preheating device can be improved, the preheating is more uniform, the preheating effect of the preheating device can be improved, and the quality of subsequent welding is improved; the filter mechanism is arranged, so that the pollution of smoke to the working environment is reduced, and more importantly, the filter mechanism is beneficial to the physical health of workers.

Description

Large-scale special steel structure welding preheating device

Technical Field

The utility model relates to the technical field of steel structure welding, in particular to a large-scale special steel structure welding preheating device.

Background

The special steel is made up by adding one or several alloy elements into carbon steel in a proper quantity to change the structure of steel, so that the steel has various special properties. When welding some large-scale special steel structures, in order to avoid the generation of defects such as welding cracks, a preheating device is usually needed, namely, a manual preheating process of heat conduction or heat radiation is carried out on the local part of the large-scale special steel structure through a handheld flame thrower.

However, the existing preheating device has the following defects: on one hand, the existing preheating device has low working efficiency and uneven preheating, and reduces the preheating effect of the preheating device, thereby influencing the quality of subsequent welding; on the other hand, the existing preheating device is easy to generate smoke in the process of flame spraying and heating, and a large amount of toxic gas possibly appears in the smoke, so that not only can the working environment be seriously polluted, but also more importantly, the health of workers can be seriously harmed. Therefore, we propose a large-scale special steel structure welding preheating device.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides a large special steel structure welding preheating device.

In order to achieve the purpose, the utility model adopts the following technical scheme:

large-scale special steel construction welding preheating device, install portal frame and the control box of four universal wheels of stopping including the bottom outer wall, be equipped with in the control box in proper order and preheat mechanism and filtering mechanism, preheat the slider of mechanism including the servo motor through the bolt fastening at control box one side inner wall, through lead screw, spiro union on the lead screw of shaft coupling and servo motor output shaft, through the flame thrower of bolt fastening at slider bottom outer wall and set up the slide at control box bottom inner wall, the outer wall of slider and the inner wall sliding connection of slide, and the one side inner wall connection of bearing and control box is passed through to the one end of lead screw, filtering mechanism includes the active carbon filter screen through the bolt fastening at the control box inner wall and the exhaust fan of fixed intercommunication at control box top outer wall.

Preferably, the gantry is provided with a lifting mechanism, and the lifting mechanism comprises a push rod motor fixed on the outer wall of the top of the gantry through a bolt, a U-shaped connecting frame fixed on the outer wall of the output end of the push rod motor, two positioning rods welded on the outer walls of two sides of the U-shaped connecting frame in sequence and two positioning grooves arranged on the inner walls of two sides of the gantry in sequence.

Preferably, the outer wall of the bottom end of the U-shaped connecting frame is welded on the outer wall of the top of the operation box, and the outer walls of the two positioning rods are respectively connected with the inner walls of the two positioning grooves in a sliding mode.

Preferably, the lower part of the portal frame is provided with two clamping mechanisms which are symmetrically arranged, and each clamping mechanism comprises a T-shaped pull rod inserted into the lower part of the portal frame, a clamping plate welded on the outer wall of one end of the T-shaped pull rod and a spring sleeved on the T-shaped pull rod.

Preferably, the outer walls of the two ends of the spring are respectively welded on the side wall of the clamping plate and the side wall of the portal frame, and the front surface of the operation box is hinged with a sealing box door.

Preferably, the servo motor is connected with a reversing switch through a wire, and the reversing switch is connected with a power line.

The utility model has the beneficial effects that:

1. the preheating device is provided with the preheating mechanism, the screw rod is driven to rotate by the servo motor, the sliding block screwed on the screw rod can reciprocate in the horizontal direction under the driving of the servo motor under the limiting of the slide way, and then the flame thrower finally reciprocates, so that the working efficiency of the preheating device can be improved, the preheating can be more uniform, the preheating effect of the preheating device can be improved, and the quality of subsequent welding can be improved;

2. be provided with filtering mechanism, can inhale the operation box to the smog that the in-process produced and toxic gas from the slide through the air discharge fan, under the superstrong adsorption filtration of active carbon filter screen, the particulate matter in the smog and have the toxic gas can be fully filtered, have so not only reduced the pollution that smog caused work environment, and more importantly is favorable to workman's healthy moreover.

Drawings

FIG. 1 is a schematic diagram of an overall three-dimensional structure of a large special steel structure welding preheating device provided by the utility model;

FIG. 2 is a schematic view of the internal three-dimensional structure of an operation box in the large special steel structure welding preheating device provided by the utility model;

fig. 3 is an explosion schematic diagram of a filtering mechanism in the large special steel structure welding preheating device provided by the utility model.

In the figure: the device comprises a portal frame 1, an operation box 2, a servo motor 3, a lead screw 4, a sliding block 5, a flame thrower 6, a slideway 7, an active carbon filter screen 8, an exhaust fan 9, a push rod motor 10, a U-shaped connecting frame 11, a positioning rod 12, a positioning groove 13, a pull rod 14T, a clamping plate 15, a spring 16 and a sealing box door 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a large-scale special steel structure welding preheating device comprises a portal frame 1, an operation box 2, a preheating mechanism, a filtering mechanism, a lifting mechanism and two clamping mechanisms which are symmetrically arranged, wherein four universal wheels with brakes are installed at the bottom of the portal frame 1, a sealing box door 17 is hinged to the front surface of the operation box 2, the preheating mechanism and the filtering mechanism are arranged on the operation box 2, the filtering mechanism and the lifting mechanism are arranged on the portal frame 1, the preheating mechanism is composed of a servo motor 3, a lead screw 4, a sliding block 5, a flame thrower 6 and a slideway 7, the servo motor 3 is fixed on the inner wall of one side of the operation box 2 through bolts, the lead screw 4 is coaxially connected with an output shaft of the servo motor 3 through a coupler, the servo motor 3 is connected with a reversing switch through a lead wire, the reversing switch is connected with a power wire, the sliding block 5 is screwed on the lead screw 4, the flame thrower 6 is fixed on the outer wall of the bottom of the sliding block 5 through a bolt, the slide way 7 is arranged on the inner wall of the bottom of the operation box 2, the outer wall of the sliding block 5 is in sliding connection with the inner wall of the slide way 7, one end of the lead screw 4 is connected with the inner wall of one side of the operation box 2 through a bearing, the lead screw 4 is driven to rotate through the servo motor 3, the sliding block 5 screwed on the lead screw 4 can do reciprocating motion in the horizontal direction under the driving of the servo motor 3 under the limit of the slide way 7, and then the flame thrower 6 finally does reciprocating motion, so that the working efficiency of the preheating device can be improved, the preheating can be more uniform, the preheating effect of the preheating device can be improved, and the quality of subsequent welding can be improved;

the filter mechanism is composed of an active carbon filter screen 8 and an exhaust fan 9, the active carbon filter screen 8 is fixed on the inner wall of the operation box 2 through bolts, the exhaust fan 9 is fixedly communicated with the outer wall of the top of the operation box 2, smoke and toxic gas generated in the preheating process can be sucked into the operation box 2 from the slide way 7 through the exhaust fan 9, and under the super adsorption and filtration of the active carbon filter screen 8, particulate matters and toxic gas in the smoke can be fully filtered, so that the pollution of the smoke to the working environment is reduced, and more importantly, the health of workers is facilitated;

the lifting mechanism consists of a push rod motor 10, a U-shaped connecting frame 11, two positioning rods 12 and two positioning grooves 13, the push rod motor 10 is fixed on the outer wall of the top of the portal frame 1 through bolts, the U-shaped connecting frame 11 is fixed on the outer wall of the output end of the push rod motor 10, the two positioning rods 12 are sequentially welded on the outer walls of the two sides of the U-shaped connecting frame 11, the two positioning grooves 13 are sequentially arranged on the inner walls of the two sides of the portal frame 1, the outer wall of the bottom end of the U-shaped connecting frame 11 is welded on the outer wall of the top part of the operation box 2, the outer walls of the two positioning rods 12 are respectively connected with the inner walls of the two positioning grooves 13 in a sliding manner, the output shaft of the push rod motor 10 drives the U-shaped connecting frame 11 to move up and down in the vertical direction, the two positioning rods 12 slide in the two positioning grooves 13, so that the height of the flame thrower 6 can be reasonably adjusted according to the placement height of large special steel;

two fixture comprises T type pull rod 14, grip block 15 and spring 16, T type pull rod 14 is inserted and is established the lower part of portal frame 1, and grip block 15 welds the one end outer wall at T type pull rod 14, spring 16 cover is established on T type pull rod 14, and the both ends outer wall of spring 16 welds the lateral wall at grip block 15 and the lateral wall of portal frame 1 respectively, makes two spring 16 take place elastic deformation and two grip blocks 15 keep away from each other through two T type pull rods 14 of pulling, stimulates after suitable distance, loosens two T type pull rods 14, can carry out the centre gripping with the large-scale special steel of different width under the effect of two spring 16 elastic forces and fix, convenient welding operation after accomplishing preheating.

The working principle is as follows: firstly, the whole device is moved to a specified position for fixing through four universal wheels with brakes, then two springs 16 are elastically deformed and two clamping plates 15 are far away from each other by pulling two T-shaped pull rods 14, after the two T-shaped pull rods are pulled to a proper distance, the two T-shaped pull rods 14 are loosened, large special steel materials with different widths are clamped and fixed under the action of the elastic force of the two springs 16, then the U-shaped connecting frame 11 is driven by an output shaft of a push rod motor 10 to move up and down in the vertical direction, two positioning rods 12 slide in two positioning grooves 13 to adjust the height of a flame thrower 6 at the lower part of an operation box 2, then preheating operation is started, a screw rod 4 is driven by a servo motor 3 to rotate, under the limit of a slide way 7, a slide block 5 screwed on the screw rod 4 can reciprocate in the horizontal direction under the drive of the servo motor 3, and then final flame thrower 6 carries out reciprocating motion and carries out even preheating treatment, and at the in-process of preheating, smoke and toxic gas that will preheat the in-process production through air discharge fan 9 inhale to control box 2 from slide 7 in, under the superstrong adsorption filtration of active carbon filter screen 8, particulate matter and toxic gas in the smoke can be fully filtered, can carry out weldment work after preheating the end.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. Large-scale special steel structure welding preheating device, portal frame (1) and control box (2) including four universal wheels of stopping are installed to the bottom outer wall, a serial communication port, be equipped with in proper order in control box (2) and preheat mechanism and filtering mechanism, preheat the mechanism and include through servo motor (3) of bolt fastening at control box (2) one side inner wall, lead screw (4) through shaft coupling and servo motor (3) output shaft, slider (5) of spiro union on lead screw (4), through flame thrower (6) of bolt fastening at slider (5) bottom outer wall and set up slide (7) at control box (2) bottom inner wall, the outer wall of slider (5) and the inner wall sliding connection of slide (7), and the one side inner wall connection of bearing and control box (2) is passed through to the one end of lead screw (4), filtering mechanism includes through the active carbon filter screen (8) of bolt fastening at control box (2) inner wall and fixed intercommunication at control box (2), (2) 2) An exhaust fan (9) on the outer wall of the top.

2. The large special steel structure welding preheating device according to claim 1, wherein a lifting mechanism is arranged on the portal frame (1), and the lifting mechanism comprises a push rod motor (10) fixed on the outer wall of the top of the portal frame (1) through a bolt, a U-shaped connecting frame (11) fixed on the outer wall of the output end of the push rod motor (10), two positioning rods (12) welded on the outer walls of two sides of the U-shaped connecting frame (11) in sequence, and two positioning grooves (13) arranged on the inner walls of two sides of the portal frame (1) in sequence.

3. The large special steel structure welding preheating device according to claim 2, wherein the outer wall of the bottom end of the U-shaped connecting frame (11) is welded on the outer wall of the top of the operation box (2), and the outer walls of the two positioning rods (12) are respectively connected with the inner walls of the two positioning grooves (13) in a sliding manner.

4. The large special steel structure welding preheating device according to claim 1, wherein the lower portion of the portal frame (1) is provided with two symmetrically arranged clamping mechanisms, and each of the two clamping mechanisms comprises a T-shaped pull rod (14) inserted into the lower portion of the portal frame (1), a clamping plate (15) welded to the outer wall of one end of the T-shaped pull rod (14), and a spring (16) sleeved on the T-shaped pull rod (14).

5. The large special steel structure welding preheating device according to claim 4, wherein the outer walls of the two ends of the spring (16) are respectively welded on the side wall of the clamping plate (15) and the side wall of the portal frame (1), and the front surface of the operation box (2) is hinged with a sealing box door (17).

6. The large special steel structure welding preheating device according to claim 1, wherein the servo motor (3) is connected with a reversing switch through a lead, and the reversing switch is connected with a power line.