Movable wind shielding device for welding columnar shell

Abstract

The utility model relates to the technical field of shell welding, in particular to a movable wind shielding device for welding a columnar shell. The welding box is arranged, an operator is borne by the welding box, and when the operator stands in the welding box to weld the columnar shell, the welding box shields wind for the welding position; meanwhile, a moving rod capable of moving front and back on the support is further arranged, the moving rod drives the walking wheel to move, the distance between the walking wheel and the first bearing can be adjusted, and therefore the columnar shell is clamped by the walking wheel and the outer ring of the first bearing; through the friction force between the tire surfaces of the walking wheels and the inner wall of the columnar shell, the walking wheels can walk on the inner wall of the columnar shell in the circumferential direction, so that the welding box is driven to move on the outer wall of the columnar shell in the circumferential direction, the position of the wind shielding device on the columnar shell can be rapidly adjusted, and the construction efficiency is greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of shell welding, and in particular to a mobile windshield device for welding a cylindrical shell. Background Art

[0002] In the metallurgical construction industry, the shells of blast furnaces, hot blast furnaces, dry quenching furnaces, etc. are all columnar structures, often pressed into corresponding curved surfaces from large-area plates, and then assembled and welded into shape. This type of equipment is difficult to transport by road due to its large structural dimensions, so it cannot be manufactured in a factory. In the actual construction process, on-site production and field assembly and welding are often used for construction. When welding outdoors in a windy environment, pores are easily generated in the welds, affecting the welding quality. The traditional windproof method is to use a cover to block the upwind vent, and the cover needs to be moved frequently as the welding position changes. Manually moving the cover is not only cumbersome, but also greatly reduces construction efficiency. Utility Model Content

[0003] The utility model aims to solve the problems of cumbersome operation and low construction efficiency of traditional windshield methods, thereby providing a windshield device that can quickly adjust the shielding object.

[0004] The utility model solves the above problems by adopting the following technical solutions:

[0005] A mobile windshield device for a welded cylindrical shell includes a welding box and a motor. The welding box is a box structure with an open front side and closed other sides. The front side of the welding box faces the outer wall of the cylindrical shell. A bracket is fixed to the top front end of the welding box. The rear part of the bracket is used to overlap the top surface of the side wall of the cylindrical shell. The motor is vertically fixed to the front end of the bracket, and the output shaft of the motor is parallel to the axis of the cylindrical shell; the bottom two ends of the bracket are movably connected to a rod, and the lower end of the rod is rotatably connected to a walking wheel, and the tire surface of the walking wheel is used to abut against the inner wall of the cylindrical shell. A first bearing is also rotatably provided on the top of the welding box. The first bearing is parallel to the axis of the cylindrical shell, and the outer ring of the first bearing is used to abut against the outer wall of the cylindrical shell. The output shaft of the motor drives the lower part of the rod to rotate through the transmission assembly, thereby driving the walking wheel to move circumferentially on the inner wall of the cylindrical shell.

[0006] Compared with the prior art, the present invention adopting the above technical solution has the following beneficial effects:

[0007] The utility model is provided with a welding box, which carries an operator. When the operator stands in the welding box to weld a columnar shell, the welding box provides wind shielding for the welding position. At the same time, a movable rod that can be moved back and forth on the bracket is also provided. The movable rod drives the walking wheel to move, and the distance between the walking wheel and the first bearing can be adjusted so that the walking wheel and the outer ring of the first bearing clamp the columnar shell. When the motor drives the walking wheel to rotate through the transmission assembly, the friction between the tire surface of the walking wheel and the inner wall of the columnar shell is used to enable the walking wheel to move circumferentially on the inner wall of the columnar shell, thereby driving the welding box to move circumferentially on the outer wall of the columnar shell, and then the position of the wind shield device on the columnar shell can be quickly adjusted, thereby greatly increasing construction efficiency.

[0008] Preferably, a further technical solution of the present invention is:

[0009] The rod and the running wheels are each provided in pairs. The rod comprises a movable rod and a rotating rod. The top of the movable rod is movably connected to the bracket, and the bottom of the movable rod is rotatably connected to the rotating rod. The two running wheels are respectively fixedly sleeved on the bottom ends of the rotating rod, and the rotating rod is connected to the transmission assembly. This structure increases the stability of the running wheels when they move circumferentially on the inner wall of the cylindrical housing.

[0010] The transmission assembly includes a first gear and two second gears. The first gear is fixedly mounted on the output shaft of the motor, and the two second gears are fixedly mounted on the two rotating rods. The first gear and the two second gears are meshed and driven. With the above structure, the motor can simultaneously drive the two rotating rods to rotate, thereby driving the two running wheels to rotate simultaneously.

[0011] The rod also includes a second bearing. The lower end of the moving rod is coaxially fixed to the outer ring of the second bearing, and the inner ring of the second bearing is fixedly sleeved on the top of the rotating rod. The second bearing provides a rotatable connection between the lower end of the moving rod and the upper end of the rotating rod, facilitating the motor output shaft to drive the rotating rod, thereby driving the travel wheels.

[0012] The bottom ends of the bracket are provided with moving grooves, threaded rods are rotatably arranged in the moving grooves, the top ends of the moving rods are sleeved on the threaded rods and are threadedly connected to the threaded rods, and the motor is fixedly connected to the moving rods on both sides.

[0013] The front end of the bottom of the welding box is also fixedly sleeved with a third bearing, the outer ring of which is used to abut against the outer wall of the cylindrical shell. By adding the third bearing, the stability of the welding box as a whole is increased when it moves.

[0014] At least two lifting lugs are fixed on the top surface of the welding box. The lifting lugs are provided to facilitate the use of lifting equipment to lift the device.

[0015] The front end of the threaded rod protrudes from the bracket, and a knob is fixed on the threaded rod outside the bracket. The threaded rod is driven to rotate by the knob, which is convenient for operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the application state of the embodiment of the present application;

[0017] Figure 2 It is a structural stereogram of an embodiment of the present application;

[0018] Figure 3 This is a structural stereogram from another perspective of an embodiment of the present application;

[0019] Figure 4 It is a side view of the structure of an embodiment of the present application;

[0020] In the figure: 1. Columnar shell; 2. Bracket; 21. Moving groove; 211. Knob; 22. Threaded rod; 23. Moving rod; 231. Fixed plate; 24. Second bearing; 25. Rotating rod; 26. Second gear; 27. Travel wheel; 28. Motor; 29. ​​First gear; 3. Welding box; 31. Lifting eye; 32. First fixing rod; 33. First bearing; 34. Second fixing rod; 35. Third bearing. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0022] Reference Figure 1-4 The embodiment of the present application discloses a mobile windshield device for welding a cylindrical shell, including a welding box 3 and a motor 28. The welding box 3 is a box structure with an open front side and closed other sides. The front side opening of the welding box 3 faces the outer wall of the cylindrical shell 1. A bracket 2 is fixed to the top front end of the welding box 3. The rear bottom end of the bracket 2 is used to overlap the top surface of the side wall of the cylindrical shell 1. The motor 28 is vertically fixed to the bottom front end of the bracket 2, and the output shaft of the motor 28 is parallel to the axial direction of the cylindrical shell 1; the bottom ends of the bracket 2 are movably connected to rods, and the lower end of the rod is rotatably connected There is a traveling wheel 27, the tire surface of the traveling wheel 27 is used to abut against the inner wall of the cylindrical shell 1, and a vertical first fixing rod 32 is also fixed at both ends of the top of the welding box 3. A first bearing 33 is provided at the lower end of the first fixing rod 32. The first bearing 33 is axially parallel to the cylindrical shell 1. Specifically, the inner ring of the first bearing 33 is fixedly sleeved on the lower end of the first fixing rod 32, and the outer ring of the first bearing 33 is used to abut against the outer wall of the cylindrical shell 1. The output shaft of the motor 28 drives the lower part of the rod to rotate through the transmission assembly, thereby driving the traveling wheel 27 to move circumferentially on the inner wall of the cylindrical shell 1.

[0023] In this embodiment, there are two rods and walking wheels 27, and the rods include a moving rod 23 and a rotating rod 25. Two parallel moving grooves 21 are provided at both ends of the bottom of the bracket 2. Threaded rods 22 are rotatably provided in the two moving grooves 21. The front end of the threaded rod 22 protrudes from the bracket 2 at the front end of the moving groove 21, and a knob 211 is fixed to the threaded rod 22 on the outside of the bracket 2. The threaded rod 22 is driven to rotate by the knob 211, and the rear end of the threaded rod 22 is rotatably connected to the rear end of the moving groove 21. The length direction of the threaded rod 22 is parallel to the length direction of the moving groove 21. The moving rod 23 is vertically arranged, and a horizontal threaded hole is provided at the top of the moving rod 23. The top of the moving rod 23 is screwed through the threaded hole The thread is sleeved on the threaded rod 22. When the threaded rod 22 rotates, the moving rod 23 moves in the moving groove 21. A fixed plate 231 is fixedly connected between the two moving rods 23. The motor 28 is fixed to the bottom of the fixed plate 231. The lower end of the moving rod 23 is rotatably connected to the top of the rotating rod 25 through the second bearing 24. Specifically, the lower end of the moving rod 23 is coaxially fixed with the outer ring of the second bearing 24, and the inner ring of the second bearing 24 is fixedly sleeved on the top of the rotating rod 25. By setting the second bearing 24, it is convenient for the threaded rod 22 to drive the moving rod 23 to move, and it is convenient for the output shaft of the motor 28 to drive the rotating rod 25 to rotate, thereby driving the walking wheel 27 to rotate; the two walking wheels 27 are respectively fixedly sleeved on the bottom end of the rotating rod 25.

[0024] In this embodiment, the transmission assembly includes a first gear 29 and two second gears 26. The first gear 29 is fixedly mounted on the output shaft of the motor 28, and the two second gears 26 are fixedly mounted on the two rotating rods 25. The first gear 29 and the two second gears 26 are meshed and driven. Preferably, a protruding block is fixed to the front end of the fixed plate 231, and the motor 28 is fixed to the bottom of the protruding block, so that the motor 28 is located in the middle of the front of the two moving rods 23. The diameter of the first gear 29 is larger than the diameter of the two second gears 26. This structure facilitates the motor 28 to simultaneously drive the two rotating rods 25 to rotate, thereby driving the two running wheels 27 to rotate simultaneously.

[0025] In this embodiment, second fixing rods 34 are fixed to both ends of the front bottom of the welding box 3. A third bearing 35 is provided at the bottom end of the second fixing rod 34. Specifically, the inner ring of the third bearing 35 is fixedly mounted on the lower end of the second fixing rod 34, and the outer ring of the third bearing 35 is used to abut the outer wall of the cylindrical housing 1. The front outer walls of the second bearing 24 and the third bearing 35 are on the same vertical plane, and the distance between the front outer walls of the second bearing 24 and the third bearing 35 and the front side of the welding box 3 is no more than 200 mm. When the outer ring of the second bearing 24 abuts the outer wall of the cylindrical housing 1, the outer ring of the third bearing 35 also abuts the outer wall of the cylindrical housing 1. At this time, the distance between the front side of the welding box 3 and the outer wall of the cylindrical housing 1 is no more than 200 mm, allowing the welding box 3 to effectively shield the weld from wind. The addition of the third bearing 35 increases the stability of the welding box 3 during overall movement.

[0026] In this embodiment, at least two lifting lugs 31 are fixed to the top surface of the welding box 3, so as to facilitate the use of lifting equipment to lift the device.

[0027] Welding the columnar shell 1 using the windshield device of this embodiment includes the following steps:

[0028] Step 1: According to the construction requirements, the cylindrical shell 1 is divided into multiple curved surfaces, and curved surface plates are manufactured according to the curved surface size and the thickness of the cylindrical shell 1;

[0029] Step 2: At the construction site, multiple curved panels are assembled into a cylindrical shell 1 and temporarily fixed;

[0030] Step 3: The operator enters the welding box 3 and hoist the welding box 3 to the outside of the curved plate at the weld position using the lifting lugs 31, so that the bracket 2 between the running wheels 27 and the welding box 3 rests on the top surface of the curved plate above the weld. At this time, the two running wheels 27 are located on the inside of the curved plate.

[0031] Step 4: Synchronously rotate the two threaded rods 22 to drive the two moving rods 23 to move toward the inner wall of the curved plate until the walking wheel 27 abuts against the inner wall of the curved plate. At this time, the outer ring of the second bearing 24 abuts against the outer wall of the curved plate. The front end of the welding box 3 is close to the outer wall of the curved plate to protect the welding position from wind.

[0032] Step 5: Start welding the weld until the weld is completed;

[0033] Step 6: Turn on the motor 28 and drive the travel wheel 27 to rotate through the output shaft of the motor 28. The travel wheel 27 moves circumferentially on the inner wall of the curved plate until it drives the welding box 3 to move to the outer side of the curved plate at the next weld position and weld the weld.

[0034] Step 7: Repeat the steps of step 7 until all welds are completed. At this time, the welding of the cylindrical shell 1 is completed.

[0035] The utility model is provided with a welding box 3, which carries an operator. When the operator stands in the welding box 3 to weld the cylindrical shell 1, the welding box 3 blocks the wind at the welding position. At the same time, a moving rod 23 that can move back and forth on the bracket 2 is also provided. The moving rod 23 drives the walking wheel 27 to move, and the distance between the walking wheel 27 and the first bearing 33 can be adjusted so that the outer ring of the walking wheel 27 and the first bearing 33 clamps the cylindrical shell 1. When the motor 28 drives the walking wheel 27 to rotate through the transmission assembly, the friction between the tire surface of the walking wheel 27 and the inner wall of the cylindrical shell 1 enables the walking wheel 27 to move circumferentially on the inner wall of the cylindrical shell 1, thereby driving the welding box to move circumferentially on the outer wall of the cylindrical shell 1, and then the position of the windshield device on the cylindrical shell 1 can be quickly adjusted, thereby greatly increasing the construction efficiency.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the scope of the present invention. Any equivalent changes made using the contents of the present invention specification and its drawings are included in the scope of the present invention.

Claims

1. A mobile windshield device with a welded cylindrical shell, characterized in that: It includes a welding box and a motor. The welding box is a box structure with an open front side and closed other sides. The front side of the welding box faces the outer wall of the cylindrical shell. A bracket is fixed to the top front end of the welding box. The rear part of the bracket is used to overlap the top surface of the side wall of the cylindrical shell. The motor is vertically fixed to the front end of the bracket, and the output shaft of the motor is parallel to the axial direction of the cylindrical shell; the bottom two ends of the bracket are movably connected with a rod, and the lower end of the rod is rotatably connected with a walking wheel, and the tire surface of the walking wheel is used to abut against the inner wall of the cylindrical shell. A first bearing is also rotatably provided on the top of the welding box. The first bearing is parallel to the axial direction of the cylindrical shell, and the outer ring of the first bearing is used to abut against the outer wall of the cylindrical shell. The output shaft of the motor drives the lower part of the rod to rotate through the transmission assembly, thereby driving the walking wheel to move circumferentially on the inner wall of the cylindrical shell.

2. The movable windshield device of welded cylindrical shell according to claim 1, characterized in that: There are two rods and two walking wheels. The rod includes a moving rod and a rotating rod. The top of the moving rod is movably connected to the bracket, and the lower end of the moving rod is rotatably connected to the rotating rod. The two walking wheels are respectively fixedly sleeved on the bottom end of the rotating rod, and the rotating rod is connected to the transmission assembly.

3. The movable windshield device of welded cylindrical shell according to claim 2, characterized in that: The transmission assembly includes a first gear and two second gears. The first gear is fixedly sleeved on the output shaft of the motor, and the two second gears are fixedly sleeved on two rotating rods respectively. The first gear and the two second gears are meshed for transmission.

4. The movable windshield device of welded cylindrical shell according to claim 2, characterized in that: The rod also includes a second bearing. The lower end of the moving rod is coaxially fixed with the outer ring of the second bearing. The inner ring of the second bearing is fixedly sleeved on the top of the rotating rod.

5. The movable windshield device of welded cylindrical shell according to claim 2, characterized in that: The bottom ends of the bracket are provided with moving grooves, threaded rods are rotatably arranged in the moving grooves, the top ends of the moving rods are sleeved on the threaded rods and are threadedly connected to the threaded rods, and the motor is fixedly connected to the moving rods on both sides.

6. The movable windshield device of welded cylindrical shell according to claim 1, characterized in that: A third bearing is also fixedly sleeved on the front end of the bottom of the welding box, and the outer ring of the third bearing is used to abut against the outer wall of the columnar shell.

7. The movable windshield device of welded cylindrical shell according to claim 1, characterized in that: At least two lifting ears are fixed on the top surface of the welding box.

8. The movable windshield device of welded cylindrical shell according to claim 5, characterized in that: The front end of the threaded rod protrudes from the bracket, and a knob is fixed on the threaded rod outside the bracket.

Images