阅读说明：本技术 用于卸船机抓斗刃口板更换的切焊装置及其使用方法 (Cutting and welding device for replacing edge plate of grab bucket of ship unloader and using method thereof ) 是由 张君 杨荣青 董辉 金晓荣 侯郜俊 柯陆伟 吴君 于 2020-04-01 设计创作，主要内容包括：本发明提供了一种用于卸船机抓斗刃口板更换的切焊装置,包括：轨道；手动升降门架,包括门架、丝杆以及螺母,丝杆沿Z轴方向延伸且贯穿门架的顶部,其顶端设有把手,轨道的端部通过安装部与螺母相连接；移动切焊设备,包括设置在轨道上的机架、安装在机架上的Y轴行走电机和切焊设备,Y轴行走电机驱动机架沿轨道移动,机架上还设有依次连接的X轴行走电机、Z轴行走电机和旋转电机,旋转电机的输出轴与切焊设备相连接。本发明的有益之处在于,切割和焊接刃口板过程中的热源移动均由机械装置完成,而切割、焊接的角度调节可由操作人员配合实施,可以快速稳定地对直线部分进行切割、焊接。整个作业过程简单便捷,工期短,成本低。(The invention provides a cutting and welding device for replacing a grab bucket cutting edge plate of a ship unloader, which comprises: a track; the manual lifting portal comprises a portal body, a lead screw and a nut, wherein the lead screw extends along the Z-axis direction and penetrates through the top of the portal body, a handle is arranged at the top end of the lead screw, and the end part of the track is connected with the nut through an installation part; the movable cutting and welding equipment comprises a rack arranged on a track, a Y-axis walking motor and cutting and welding equipment, wherein the Y-axis walking motor is installed on the rack, the Y-axis walking motor drives the rack to move along the track, the rack is also provided with an X-axis walking motor, a Z-axis walking motor and a rotating motor which are sequentially connected, and an output shaft of the rotating motor is connected with the cutting and welding equipment. The invention has the advantages that the heat source movement in the cutting and welding processes of the cutting edge plate is completed by a mechanical device, the angle adjustment of the cutting and welding can be implemented by the cooperation of operators, and the straight line can be quickly and stably cut and welded. The whole operation process is simple and convenient, the construction period is short, and the cost is low.)

1. A surely weld device that is used for quick-witted grab bucket cutting edge board of ship to change, its characterized in that includes:

a rail (2) extending in the Y-axis direction;

the manual lifting gantry (3) comprises a gantry (36), a screw rod (31) and a nut movably connected with the screw rod (31), the screw rod (31) extends in the Z-axis direction and penetrates through the top of the gantry (36), a handle (32) is arranged at the top end of the screw rod, and the end part of the track (2) is connected with the nut through an installation part (33);

remove and cut welding equipment (1), including setting up frame (18) on track (2), install Y axle walking motor (11) on frame (18) and cut welding equipment (16), Y axle walking motor (11) drive frame (18) are followed track (2) remove, still be equipped with X axle walking motor (13), Z axle walking motor (14) and rotating electrical machines (15) that connect gradually on frame (18), the output shaft of rotating electrical machines (15) with cut welding equipment (16) and be connected.

2. The cutting and welding device according to claim 1, characterized in that a rack (21) extending along the Y-axis direction is arranged on the track (2), the Y-axis traveling motor (11) is a rotating motor, a gear (12) is fixedly arranged on an output shaft of the Y-axis traveling motor, and the gear (12) is in meshing transmission connection with the rack (21).

3. The cut-and-weld device according to claim 1, characterized in that the gantry (36) is provided at both sides with guides (361) extending in the Z-axis direction, the mounting portion (33) being in sliding connection with the guides (361).

4. Cutting and welding device according to claim 1, characterized in that the bottom of the portal (36) is also provided with a plurality of rollers (35).

5. The cutting and welding device according to claim 1, characterized in that the X-axis traveling motor (13) and the Z-axis traveling motor (14) are both linear motors.

6. The cut-and-weld device according to claim 1, characterized in that the output shaft of the rotating electrical machine (15) is connected angularly adjustably to the cut-and-weld apparatus (16) by means of a connecting plate (17).

7. The cutting and welding device according to claim 6, characterized in that said connecting plate (17) is provided with a linear slot (171) and an arc slot (172), the output shaft of said rotating electric machine (15) is connected with said linear slot (171), and said cutting and welding equipment (16) is connected with said arc slot (172) through a clamping portion.

8. The cut-and-weld apparatus according to claim 1, characterized in that the cut-and-weld device (16) is a cutting gun or a welding gun.

9. Use of a cutting and welding device for exchange of a blade plate of a grab bucket of a ship unloader as defined in claim 1, comprising the steps of:

s1, slag removal treatment is carried out on the welding seam position of the grab bucket cutting edge plate and the bucket bottom plate;

s2, moving the cutting and welding device to the side of the grab bucket to enable the rail (2) to be initially aligned with the welding seam;

s3, a cutting gun is used as a cutting and welding device (16), the position of the movable cutting and welding device (1) on a track (2) is adjusted, the distance between the cutting gun and a welding line is observed, and a manual lifting gantry (3), an X-axis walking motor (13) and a Z-axis walking motor (14) are adjusted according to needs, so that the distance between the cutting gun and the welding line is within an allowable range;

s4, moving the mobile cutting and welding equipment (1) to an operation starting position, adjusting the traveling speed of the mobile cutting and welding equipment (1), and cutting the cutting edge plate by a cutting gun;

s5, after cutting, aligning and spot-welding the new cutting edge plate and the bucket bottom plate;

and S6, replacing the cutting gun with a welding gun, moving the movable cutting and welding equipment (1) to an operation starting position, adjusting the traveling speed of the movable cutting and welding equipment (1), and welding the new edge plate by the welding gun.

Technical Field

The invention relates to the technical field of maintenance of mechanical equipment, in particular to a cutting and welding device for replacing a grab bucket cutting edge plate of a ship unloader and a using method thereof.

Background

The large bridge type grab ship unloader is a large hoisting mechanical device widely applied to wharfs and is responsible for overwater hoisting operation, and the grab bucket is an important component of the ship unloader for fetching objects. Because the raw material wharf has a severe environment and the grab bucket is in a wear state for a long time, the maintenance period of the grab bucket is relatively short, and the grab bucket needs to be disassembled and repaired after the service time is up. When the grab bucket is repaired, the whole grab bucket needs to be decomposed, and 6 cutting edge plates (the plate thickness is 50mm) of the grab bucket need to be replaced. The construction on site of the project has the following problems: 1) the investment of welders is more during the maintenance construction of the grab bucket; 2) after the patching and splicing are finished, the welding amount is large; 3) the cutting edge plate is thick (60mm) and the welding speed is slow.

In order to reduce the manpower input of cutting and welding operation during the repair operation of the grab bucket and reduce the existing safety risk, the cutting and welding device and the process in the existing grab bucket repair process need to be improved so as to improve the working efficiency.

Disclosure of Invention

Aiming at the defects, the invention aims to provide a cutting and welding device for replacing a grab bucket cutting edge plate of a ship unloader, so that the working efficiency is improved.

The invention provides a cutting and welding device for replacing a grab bucket cutting edge plate of a ship unloader, which comprises: a rail extending in a Y-axis direction; the manual lifting portal comprises a portal body, a screw rod and a nut movably connected with the screw rod, the screw rod extends along the Z-axis direction and penetrates through the top of the portal body, a handle is arranged at the top end of the screw rod, and the end part of the track is connected with the nut through an installation part; remove and cut welding equipment, including setting up frame on the track, install Y axle walking motor in the frame and cut welding equipment, Y axle walking motor drive the frame is followed the track removes, still be equipped with X axle walking motor, Z axle walking motor and the rotating electrical machines that connect gradually in the frame, the output shaft of rotating electrical machines with cut welding equipment and be connected.

Preferably, a rack extending along the Y-axis direction is arranged on the track, the Y-axis walking motor is a rotating motor, a gear is fixedly mounted on an output shaft of the rotating motor, and the gear is in meshing transmission connection with the rack.

Preferably, the two sides of the door frame are provided with guide parts extending along the Z-axis direction, and the mounting part is connected with the guide parts in a sliding manner.

Preferably, the bottom of the door frame is also provided with a plurality of rollers.

Preferably, the X-axis traveling motor and the Z-axis traveling motor are both linear motors.

Preferably, the output shaft of the rotating motor is connected with the cutting and welding device in an angle adjustable mode through a connecting plate.

Preferably, a linear groove and an arc-shaped groove are formed in the connecting plate, an output shaft of the rotating motor is connected with the linear groove, and the cutting and welding equipment is connected with the arc-shaped groove through the clamping portion.

Preferably, the cutting and welding equipment is a cutting gun or a welding gun.

The invention also provides a use method of the cutting and welding device for replacing the blade plate of the grab bucket of the ship unloader, which comprises the following steps:

s1, slag removal treatment is carried out on the welding seam position of the grab bucket cutting edge plate and the bucket bottom plate;

s2, moving the cutting and welding device to the side of the grab bucket to enable the rail to be initially aligned with the welding seam;

s3, adopting a cutting gun as cutting and welding equipment, adjusting the position of the movable cutting and welding equipment on the track, observing the distance between the cutting gun and the welding line, and adjusting a manual lifting portal frame, an X-axis walking motor and a Z-axis walking motor according to the requirement to enable the distance between the cutting gun and the welding line to be within an allowable range;

s4, moving the mobile cutting and welding equipment to an operation starting position, adjusting the traveling speed of the mobile cutting and welding equipment, and cutting the edge plate by a cutting gun;

s5, after cutting, aligning and spot-welding the new cutting edge plate and the bucket bottom plate;

and S6, replacing the cutting gun with a welding gun, moving the mobile cutting and welding equipment to the operation initial position, adjusting the traveling speed of the mobile cutting and welding equipment, and welding the new cutting edge plate by the welding gun.

The invention has the advantages that the heat source movement in the cutting and welding processes of the cutting edge plate is completed by a mechanical device, the angle adjustment of the cutting and welding can be implemented by the cooperation of operators, the straight line part can be cut and welded quickly and stably, the original hand welding is replaced by a semi-automatic working mode in the welding of fillet welding and horizontal straight line welding, the welding speed is controlled at 5cm/min, the one-step forming of the welding line can be ensured, the problems of air holes, slag inclusion, cracks, incomplete penetration and the like which are frequently generated in the traditional welding are solved, the condition that the full-automatic welding range is limited is avoided, the smooth completion of the replacement operation of the grab bucket cutting edge plate is ensured, and the field production requirements are met. The whole operation process is simple and convenient, the construction period is short, and the cost is low.

Drawings

FIG. 1 is a front perspective view of a cut and weld apparatus for a ship unloader grapple blade plate exchange in accordance with the present invention;

FIG. 2 is a right perspective view of the cut and weld apparatus of the present invention for replacement of a grab blade plate of a ship unloader;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

FIG. 4 is a schematic front view of the mobile cutting and welding device;

fig. 5 is a schematic diagram of the structure of the back side of the mobile cutting and welding device.

Element number description:

1 moving cutting and welding equipment

11Y-axis walking motor

12 gears

13X-axis walking motor

14Z-axis walking motor

15 rotating electric machine

16 cut welding equipment

161 clamping part

17 connecting plate

171 straight line groove

172 arc-shaped groove

18 frame

2 track

21 rack

3 Manual lifting door frame

31 screw mandrel

32 handle

33 mounting part

34 bottom plate

35 contact roller

36 door frame

361 guide part

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to limit the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the following description, with the drawings in fig. 4 as a reference basis for the direction, in fig. 4, the extending direction of the rail 2 is defined as a Y-axis, the upward and downward directions along the drawing sheet are defined as a Z-axis, and the direction perpendicular to the Y-axis and the Z-axis is defined as an X-axis. The orientation determined in fig. 4 is used as a basis for the description of the other views.

As shown in fig. 1, the invention provides a cutting and welding device for replacing a grab bucket cutting edge plate of a ship unloader, which comprises a track 2 extending along the Y-axis direction, a manual lifting portal 3 and a movable cutting and welding device 1. As shown in fig. 2, the manual lifting gantry 3 includes a gantry 36, a screw rod 31 and a nut (not shown) movably connected to the screw rod 31, the gantry 36 is a rectangular frame extending along the Z-axis direction, the screw rod 31 extends along the Z-axis direction and penetrates through the top of the gantry 36, and a disc-shaped handle 32 is disposed at the top end of the screw rod and connected to the gantry 36 through a bearing. The end of the rail 2 is connected with the nut through the mounting part 33, preferably, the two sides of the door frame 36 are provided with guide parts 361 extending along the Z-axis direction, the two sides of the mounting part 33 are provided with grooves, the grooves are connected with the guide parts 361 in a sliding manner, and the guide parts 361 can guide the lifting movement of the mounting part 33, so that the mounting part 33 is prevented from deflecting. When an operator manually rotates the handle 32, the screw rod 31 rotates, the nut moves upwards or downwards along the screw rod 31, and the mounting part 33 drives the rail 2 to lift along with the lifting of the nut, so that the height of the rail 2 is adjusted. In order to facilitate the movement of the cutting and welding device of the present invention, a bottom plate 34 is further provided at the bottom of the gantry 36, and a plurality of rollers 35 are provided at the bottom of the bottom plate 34.

As shown in fig. 3 and 5, the mobile cutting and welding device 1 includes a frame 18 disposed on the rail 2, a Y-axis traveling motor 11 mounted on the frame 18, and a cutting and welding device 16, wherein the Y-axis traveling motor 11 drives the frame 18 to move along the rail 2. In the specific implementation, the track 2 is provided with a rack 21 extending along the Y-axis direction, the Y-axis traveling motor 11 is a rotating motor, an output shaft of the Y-axis traveling motor is fixedly provided with a gear 12, the gear 12 is in meshing transmission connection with the rack 21, and the traveling speed and the traveling direction of the movable cutting and welding equipment 1 are adjusted by adjusting the rotating speed and the steering direction of the Y-axis traveling motor 11. Preferably, the bottom of the frame 18 is further provided with a locking device (not shown) capable of fixing the relative position between the frame 18 and the rail 2. The rack 18 is also provided with an X-axis walking motor 13, a Z-axis walking motor 14 and a rotating motor 15 which are connected in sequence, and an output shaft of the rotating motor 15 is connected with the cutting and welding equipment 16 through a clamping part 161. Preferably, the X-axis traveling motor 13 and the Z-axis traveling motor 14 are linear motors and are respectively arranged along the X-axis direction and the Z-axis direction, and when the slider of the X-axis traveling motor 13 moves along the X-axis direction, the Z-axis traveling motor 14, the rotating motor 15 and the cutting and welding device 16 are driven to move along the X-axis direction together, so that the cutting and welding device 16 is subjected to fine position adjustment in the X-axis direction; when the slider of the Z-axis traveling motor 14 moves along the Z-axis direction, the rotating motor 15 and the cutting and welding device 16 are driven to move along the Z-axis direction together, and the cutting and welding device 16 is subjected to fine position adjustment in the Z-axis direction. When welding a wider welding seam between two thick plates, the output shaft of the rotating motor 15 rotates to drive the cutting and welding equipment 16 to realize swing welding. The cutting and welding device 16 is a cutting gun or welding gun.

As shown in fig. 4, the output shaft of the rotating electric machine 15 is preferably connected angularly adjustably to the cutting and welding device 16 by means of a connecting plate 17. The connecting plate 17 is provided with a linear groove 171 and an arc-shaped groove 172, the output shaft of the rotating motor 15 is connected with a fixing plate, the side of the fixing plate is provided with a hexagon bolt, and the hexagon bolt is detachably connected with the linear groove 171. The clamping portion 161 of the cutting and welding device 16 is also provided with a hexagon bolt, and the hexagon bolt is detachably connected with the arc-shaped groove 172. By adjusting the connection position between the hexagon bolt and the linear groove 171 and the arc-shaped groove 172, the relative angle adjustment between the rotary motor 15 and the cutting and welding device 16 is realized.

When the cutting and welding device works, the cutting and welding device can work in cooperation with a wire feeder and a gas shielded welding machine to finish cutting and welding operations.

The invention also provides a use method of the cutting and welding device for replacing the blade plate of the grab bucket of the ship unloader, which comprises the following steps:

s1, slag removal treatment is carried out on the welding seam position of the grab bucket cutting edge plate and the bucket bottom plate;

s2, moving the cutting and welding device to the side of the grab bucket to enable the welding seam between the rail 2 and the cutting edge plate and the bottom plate of the bucket to be aligned preliminarily;

s3, a cutting gun is used as the cutting and welding equipment 16, a locking device on the movable cutting and welding mechanism 1 is opened to be in a free state, the position of the movable cutting and welding equipment 1 on the track 2 is adjusted, the distance between the cutting gun and a welding seam is observed, and the manual lifting gantry 3, the X-axis walking motor 13 and the Z-axis walking motor 14 are adjusted as required, so that the distance between the cutting gun and the welding seam is within an allowable range;

s4, after the adjustment is finished, moving the mobile cutting and welding equipment 1 to an operation initial position, and closing the locking device; igniting the cutting gun, adjusting the traveling speed of the movable cutting and welding equipment 1, then opening the locking device, cutting the cutting edge plate by the cutting gun, and setting a stop limit at the operation ending position;

s5, after cutting, aligning and spot-welding the new cutting edge plate and the bucket bottom plate;

and S6, replacing the cutting gun with a welding gun, switching on a power supply, moving the mobile cutting and welding equipment 1 to an operation starting position, adjusting the traveling speed of the mobile cutting and welding equipment 1, switching on the power supply, welding a new cutting edge plate by the welding gun, and setting a stop limit at an operation ending position.

The invention has the advantages that the heat source movement in the cutting and welding processes of the cutting edge plate is completed by a mechanical device, the angle adjustment of the cutting and welding can be implemented by the cooperation of operators, the straight line part can be cut and welded quickly and stably, the original hand welding is replaced by a semi-automatic working mode in the welding of fillet welds and horizontal straight welds, the welding speed is controlled at 5cm/min, the one-step forming of the welds can be ensured, the problems of air holes, slag inclusion, cracks, incomplete penetration and the like which are frequently generated in the traditional welding are solved, meanwhile, the condition that the full-automatic welding range is limited is avoided, the smooth completion of the replacement operation of the grab bucket cutting edge plate is ensured, and the production requirements on site are met. The whole operation process is simple and convenient, the construction period is short, and the cost is low.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.