A mobile metal coil leveling butt welding device

Abstract

The movable metal coil leveling butt welding device comprises a movable left car and a movable right car, both of which are composed of a car bottom frame equipped with a universal bottom wheel and an upper flat beam arranged above the car bottom frame through a column. The movable left car and the movable right car are connected together through a lead screw and a nut kinematic pair. Vertical shafts with bearings are respectively installed at the rear parts of the upper flat beams of the left and right cars. Metal coil clamping mechanisms composed of a rear vertical rectangular column and a front vertical rectangular column connected with the rear vertical rectangular column by a hinged manner at the front ends of the upper flat beams of the left and right cars are respectively installed. A leveling rear beam is placed on the upper flat beams of the left and right cars, and the rear vertical surface of the leveling rear beam is tangent to the radial outer circumferential surface of the bearing installed on the vertical shaft. A hydraulic cylinder extending horizontally forward is installed in the middle part of the front vertical surface of the leveling rear beam, and a leveling vertical top plate for pushing the front and rear metal coil butt welding seams is arranged at the front end of the cylinder piston of the hydraulic cylinder.

Description

Technical Field

[0001] The present invention relates to the field of welding tank technology for continuously building large-scale tanks for storing liquids, gases and particulates (such as tanks for petrochemicals, sewage treatment, bulk cement, anaerobic and aerobic tanks, etc.) using metal coils. It is particularly suitable for leveling and welding the joints between metal coils on site, and is also suitable for welding two metal plates of any length, and a mobile metal coil leveling and butt welding device is required in the field of process requirements for leveling and welding at the joints. Background Art

[0002] At present, when using metal coils to continuously roll and build large metal storage tanks at construction sites, several or dozens of metal coils are needed to complete the construction of the tank, and the metal coil interfaces need to be welded before continuous construction can be carried out. Since the curvature radius of the metal coils from the inner circle to the outer circle is different at each location, when two metal coils are butt-welded, one end is the front end of the outer circle of the metal coil, and the other end is the tail end of the inner circle of the metal coil. In this way, the metal coils with different curvature radii at both ends must be squared before welding, otherwise it will greatly affect the welding quality and cause hidden dangers in engineering construction.

[0003] Due to the limitations of various conditions in on-site construction, it is not easy to use large-scale leveling equipment to level the ends of metal coils. In current on-site construction, the tail end of the inner ring of the metal coil is cut off by 1.0 to 1.5 meters before the metal coil interface is welded, and then the metal coil at the interface is manually leveled in sections using U-shaped calipers. For metal coils with a thickness greater than 4.0 mm, local flame heating is required for manual leveling. The following problems exist in the existing large-scale metal coil construction process for metal plate leveling butt welding:

[0004] 1. Cutting off 1.0m to 1.5m of the tail end of the inner circle metal coil will cause great material waste, while the thickness of the metal coil used to build the tank is 1.0mm to 12.0mm. Due to factors such as transportation and storage, the unfolded length of each metal coil is generally between 40m and 100m. In this way, the material utilization rate is in the range of 99% to 96.5%, which increases material costs.

[0005] 2. It is difficult to ensure the flatness of the metal plate by manually leveling the metal coil, which directly affects the subsequent welding quality. At the same time, the efficiency is low, the labor intensity of workers is high, and the production cost is increased.

[0006] 3. When thicker metal plates are manually leveled by heating, it is easy to partially change the metal's material tensile and shear strength properties, causing serious safety hazards. Summary of the invention

[0007] The purpose of the present invention is to provide a mobile metal coil leveling and butt welding device to solve the shortcomings of the above-mentioned existing metal coil construction tank construction process when performing metal plate leveling and butt welding. The device can solve the problem of relying on manpower to level and butt weld the interface of two metal plates, reduce the waste of cutting off some metal coil tail materials in the existing process, and overcome the quality problem of butt welding joints caused by the unevenness of metal plates caused by manual leveling. At the same time, it shortens the butt leveling welding process time and reduces the intensity of workers.

[0008] The purpose of the present invention can be achieved by the following technical measures:

[0009] The mobile metal plate rolling leveling butt welding device of the present invention comprises a mobile left car and a mobile right car, both of which are composed of a car bottom frame equipped with universal bottom wheels and an upper flat beam arranged above the car bottom frame through a column. The mobile left car and the mobile right car are connected together through a screw and a nut kinematic pair. A vertical shaft with a bearing is respectively installed at the rear part of the upper flat beam of the left car and the right car. A metal plate rolling clamping mechanism composed of a rear vertical rectangular column and a front vertical rectangular column connected to the rear vertical rectangular column by a hinged manner is respectively installed at the front end of the upper flat beam of the left car and the right car for clamping the metal plate (the front end part of the subsequent metal plate rolling and the tail part of the previous metal plate rolling are respectively placed between the rear vertical rectangular column and the front vertical rectangular column of the mobile left car and the mobile right car, and are respectively locked by two upper and lower locking bolts and locking nuts It is clamped), and a leveling rear beam is placed on the upper flat beams of the left and right cars, the rear facade of the leveling rear beam is tangent to the radial outer circumferential surface of the bearing installed on the vertical shaft, and a hydraulic cylinder extending horizontally forward is installed in the middle part of the front facade of the leveling rear beam (it can also be implemented by any known linear motion mechanism such as a pneumatic cylinder), and the front end of the cylinder piston of the hydraulic cylinder is provided with a leveling vertical top plate for pushing the front end of the metal coil clamped at the front end of the moving left car and the tail of the metal coil clamped at the front end of the moving right car at the butt weld (leveling the metal coil with arcs on both sides of the butt weld, and welding at the butt weld); the metal coil is placed on a turret turntable with a rotating wheel at the bottom and can rotate around the center of the turret base so that it can be gradually rotated and unfolded during the rolling and construction of a large welded tank.

[0010] Furthermore, in the present invention, the rear vertical rectangular column fixed to the front end of the upper flat beam is hinged to the front hinge plate arranged on the top through the rear hinge plate and the hinge shaft, forming a metal roll clamping mechanism; the tray seat arranged at the lower part of the two outer facades of the rear vertical rectangular column is equipped with an adjusting bolt with a nut A, and the adjusting bolt at the lower end of the rotating adjustable tray can adjust the horizontal end surfaces of the two metal plates placed thereon for leveling butt welding to be aligned.

[0011] The present invention provides oblique column blocks between the front ends of the upper flat beams of the left and right vehicles and the corresponding rear vertical rectangular columns. The oblique column blocks of the left vehicle are equipped with a U-shaped groove seat, and the oblique column blocks of the right vehicle are equipped with a screw cross groove seat. One end of the screw equipped with a hand wheel is embedded in a cross groove processed on the screw cross groove seat through a cylindrical shoulder arranged around the screw (that is, the cylindrical shoulder is embedded in the groove of the screw in the radial direction of the screw of the screw cross groove seat, and at the same time, the screw is also embedded in the groove perpendicular to it along the axial direction), and the other end of the screw radially passes through a rotating disk that can rotate around the rotating shaft in the groove of the U-shaped groove seat, and is screwed together in a threaded and nut-matched manner. The rotating screw is placed in the middle groove of the screw cross groove seat, and the distance between the moving left vehicle and the moving right vehicle can be adjusted by rotating the screw through the handwheel handle on the handwheel, and the two end faces of the metal coils on both sides of the butt weld are tightly butted.

[0012] The universal bottom wheel is combined with the bottom frame of the vehicle through a bottom wheel adjusting screw rod used for adjusting the height of the mobile vehicle from the ground.

[0013] The metal coil may have a thickness ranging from 1.0 mm to 12.0 mm and a width ranging from 200 mm to 2.0 m.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. Since the universal bottom wheel is installed at the bottom of the leveling butt welding device, it can be flexibly moved to any position according to the actual production conditions during on-site construction to perform leveling and butt welding of metal plates.

[0016] 2. It avoids the need to cut off the tail section of the metal coil by 1 to 1.5 meters before welding, thus reducing the waste of metal materials and production costs. In addition, it replaces the unevenness caused by manual leveling, which affects the welding quality, and shortens the time for leveling butt welding, greatly reducing the labor intensity of workers.

[0017] 3. In addition to leveling and butt welding metal coils, this device can also level and butt weld any two metal plates within a certain size specification limit (thickness between 1.0 mm and 12.0 mm, width between 2.0 m).

[0018] 4. In addition, when a manual mechanical or hydraulic jack is used to level the metal plate, it can be used in a working environment without external electric power. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front isometric view of the present invention.

[0020] Figure 2 It is a rear axonometric view of the present invention.

[0021] Figure 3 for Figure 1 A local enlarged axial schematic diagram of point A.

[0022] Figure 4 for Figure 1 A partial enlarged axial schematic diagram of point B.

[0023] Figure 5 for Figure 1 A partial enlarged axial schematic diagram of point C.

[0024] The serial numbers in the figure are: 1-adjustable tray, 2-nut A, 3-adjusting bolt, 4-tray seat, 5-bottom wheel adjusting screw, 6-bottom frame, 7-upper level beam, 8-universal bottom wheel, 9-moving right car, 10-axle block, 11-vertical axis, 12-leveling rear beam, 13-moving left car, 14-bearing, 15 - rotating wheel, 16 - rotating frame base, 17 - rotating frame turntable, 18 - metal coil, 19 - tail of metal coil, 20 - lead screw, 21 - U-shaped groove seat, 22 - turntable, 23 - rotating shaft, 24 - rear hinge plate, 25 - front hinge plate, 26 - hinge rotating shaft, 27 - rear vertical rectangular column, 28 - front vertical rectangular column, 29 - hydraulic cylinder, 30 - front end of metal coil, 31 - hydraulic cylinder piston, 32 - leveling vertical top plate, 33 - lead screw cross groove seat, 34 - handwheel, 35 - handwheel handle, 36 - inclined column block, 37 - locking bolt, 38 - butt weld, 39 - car support, 40 - handle, 41 - locking nut. DETAILED DESCRIPTION

[0025] The present invention will be further described with reference to the following embodiments (attached drawings):

[0026] like Figure 1-2As shown, the mobile metal coil leveling butt welding device of the present invention comprises a mobile left car 13 and a mobile right car 9, both of which are composed of a bottom frame 6 equipped with a universal bottom wheel 8 and an upper flat beam 7 arranged above the bottom frame through a column. The mobile left car 13 and the mobile right car 9 are connected together by a lead screw 20 and a nut kinematic pair. A vertical shaft 11 with a bearing is respectively installed at the rear of the upper flat beam 7 of the left and right cars. A metal coil clamping mechanism composed of a rear vertical rectangular column 27 and a front vertical rectangular column 28 combined with the rear vertical rectangular column 27 by a hinged manner is respectively installed at the front end of the upper flat beam 7 of the left and right cars for clamping the metal coil (the front end portion of the subsequent metal coil and the tail portion of the previous metal coil are respectively placed between the rear vertical rectangular column 27 and the front vertical rectangular column 28 of the mobile left car 13 and the mobile right car 9, and are clamped by upper and lower two locking bolts 37 and locking nuts 41, respectively), and a leveling plate is placed on the upper flat beam 7 of the left and right cars. The rear beam 12, the rear vertical surface of the leveling rear beam is tangent to the radial outer surface of the bearing 14 installed on the vertical shaft 11, and a hydraulic cylinder 29 extending horizontally forward is installed in the middle part of the front vertical surface of the leveling rear beam (it can also be implemented by any known linear motion mechanism such as a pneumatic cylinder), and the front end of the cylinder piston 31 of the hydraulic cylinder 29 is configured with a front end portion 30 of the metal roll clamped at the front end of the moving left car 13 and a rear end 19 of the metal roll clamped at the front end of the moving right car 9. The leveling vertical top plate 32 at the butt weld 38 (the oil cylinder piston 31 pushes the leveling vertical top plate 32 hanging at the butt joint of the front end 30 of the metal coil and the tail 19 of the metal coil, and the metal coil with arcs on both sides of the butt weld 38 is leveled, and then welding is performed at the butt weld 38); the metal coil 18 is placed on the turntable 17 with a rotating wheel 15 at the bottom and can rotate around the center of the turntable base 16 so as to gradually rotate and unfold during the rolling construction of the large welded tank. In the construction of the continuous construction of the tank, the butt joint of the metal coil tail 19 of the front metal coil and the metal coil front end 30 of the subsequent metal coil must be leveled before the seam welding can be performed, so as to continuously build the tank.

[0027] Further, the rear vertical rectangular column 27 fixed to the front end of the upper flat beam 7 in the present invention is hingedly connected to the front hinge plate 25 arranged on the top of the front vertical rectangular column 28 through the rear hinge plate 24 and the hinge shaft 26 arranged on the top, forming a metal roll clamping mechanism (see Figure 5 ); An adjusting bolt 3 with a nut A2 is installed on the tray seat 4 arranged at the lower part of the two outer facades of the rear vertical rectangular column 27. The adjusting bolt 3 at the lower end of the rotating adjustable tray 1 can adjust the horizontal end surfaces of the two metal plates placed thereon for leveling and butt welding to be aligned.

[0028] The present invention provides oblique column blocks between the front ends of the upper flat beams 7 of the left and right vehicles and the corresponding rear vertical rectangular columns. The oblique column block of the left vehicle is installed with a U-shaped groove seat 21, and the oblique column block of the right vehicle is installed with a screw cross groove seat 33; one end of the screw 20 equipped with a hand wheel 34 is embedded in the cross groove processed on the screw cross groove seat 33 through a cylindrical shoulder arranged around the screw (that is, the cylindrical shoulder is embedded in the groove of the screw in the radial direction of the screw of the screw cross groove seat 33, and at the same time, the screw 20 is also embedded in the groove perpendicular to it along the axial direction), and the other end of the screw radially passes through the turntable 22 that can rotate around the rotating shaft 23 in the groove of the U-shaped groove seat 21, and is screwed together in a threaded and nut-matching manner (see Figure 3 , 4 ). The screw 20 is rotated and placed in the middle groove of the screw cross groove seat 33. The screw 20 can be rotated by the hand wheel handle 40 on the hand wheel 34 to adjust the distance between the moving left car 13 and the moving right car 9, and the two end surfaces of the metal coil 18 on both sides of the butt weld 38 can be closely butted.

[0029] The universal bottom wheel 8 is combined with the bottom frame 6 of the vehicle through a bottom wheel adjusting screw 5 for adjusting the height of the mobile vehicle from the ground.

[0030] The specifications of the metal coil 18 can be: thickness between 1.0 mm and 12.0 mm, and width between 200 mm and 2.0 m.

[0031] When the metal coil 18 is welded at one vertical interface, the device is removed and the welding of the other side seam of the joint is completed according to the above steps.

Claims

1. A mobile metal coil leveling butt welding device, characterized in that: The invention comprises a movable left vehicle (13) and a movable right vehicle (9), each of which is composed of a vehicle bottom frame (6) equipped with a universal bottom wheel (8), and an upper flat beam (7) arranged above the vehicle bottom frame (6) via a column. The movable left vehicle (13) and the movable right vehicle (9) are connected together via a lead screw (20) and a nut kinematic pair. A vertical shaft (11) with a bearing is respectively installed at the rear of the upper flat beam (7) of the left vehicle and the right vehicle. A rear vertical rectangular column (27) for clamping a metal coil and a front vertical rectangular column (28) whose upper end is connected to the rear vertical rectangular column (27) by a hinged manner are respectively installed at the front end of the upper flat beam (7) of the left vehicle and the right vehicle. A metal roll plate clamping mechanism is provided, wherein a leveling rear beam (12) is placed on the upper flat beams (7) of the left and right vehicles, the rear vertical surface of the leveling rear beam being tangent to the radial outer surface of a bearing (14) mounted on the vertical shaft (11), a hydraulic cylinder (29) extending horizontally forward is mounted in the middle of the front vertical surface of the leveling rear beam, and a leveling vertical top plate (32) for pushing the front end portion (30) of the metal roll plate clamped at the front end of the moving left vehicle (13) and the rear portion (19) of the metal roll plate clamped at the front end of the moving right vehicle (9) is disposed at the front end of the hydraulic cylinder piston (31) of the hydraulic cylinder (29) to push the metal roll plate at the front end portion (30) of the moving left vehicle (13) and the metal roll plate at the rear end portion (19) of the moving right vehicle (9) The metal roll plate (18) is placed on the lower horizontal beam (7) of the moving left vehicle (13) and the rear horizontal beam (12) of the moving right vehicle (9) The metal roll plate (18) is placed on the lower horizontal beam (7) of the moving left vehicle (13) and the rear horizontal beam (12) of the moving right vehicle (9) The metal roll plate (18) is placed on the lower horizontal beam (7) of the moving right vehicle (1 ... The rotating frame (17) is provided with a rotating wheel (15) and can rotate around the center of the rotating frame base (16) so as to gradually rotate and unfold the large welded tank during rolling construction; the rear vertical rectangular column (27) fixed to the front end of the upper flat beam (7) is hingedly connected to the front hinge plate (25) arranged on the top of the front vertical rectangular column (28) through the rear hinge plate (24) and the hinge shaft (26) arranged on the top, so as to form a metal roll clamping mechanism; the tray seat (4) arranged at the lower part of the two outer facades of the rear vertical rectangular column (27) is installed with an adjusting bolt (3) with a nut A (2), and the adjusting bolt (3) at the lower end of the adjustable tray (1) can be adjusted by rotating the adjusting bolt (3) on the upper side thereof The horizontal end surfaces of the two metal plates for leveling and butt welding are aligned; oblique column blocks are arranged between the front ends of the upper flat beams (7) of the left and right vehicles and the corresponding rear vertical rectangular columns, the oblique column block of the left vehicle is installed with a U-shaped groove seat (21), and the oblique column block of the right vehicle is installed with a screw cross groove seat (33); one end of the screw (20) installed with a hand wheel (34) is embedded in a cross groove processed on the screw cross groove seat (33) through a cylindrical shoulder arranged around the screw, and the other end of the screw radially passes through a turntable (22) located in the groove of the U-shaped groove seat (21) and can rotate around the rotating shaft (23), and is screwed together in a threaded and nut-matched manner.

2. The mobile metal coil leveling butt welding device according to claim 1 is characterized in that: The universal bottom wheel (8) is combined with the bottom frame (6) of the vehicle via a bottom wheel adjustment screw (5) for adjusting the height of the mobile vehicle from the ground.

3. The mobile metal coil leveling butt welding device according to claim 1 is characterized in that: The specifications of the metal coil (18) are: thickness between 1.0 mm and 12.0 mm, and width between 200 mm and 2.0 m.

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