A continuous welding device for the outer cylinder of a rotary kiln

Abstract

The present invention relates to the field of rotary kilns, and discloses a continuous welding device for the outer cylinder of a rotary kiln, comprising a welding platform, a driving motor, a traveling wheel, a limiting mechanism and a welding mechanism, wherein driving motors are installed at the bottom of the four corners of the welding platform, and the output shafts of the four driving motors are parallel. The traveling wheels are located on both sides of the welding platform and are connected to the output shafts of the driving motors, and the limiting mechanism and the welding mechanism are respectively arranged along the traveling direction of the welding platform. The present invention provides a welding platform, and installs driving motors and traveling wheels at the four corners of the welding platform, so that the driving force when the welding platform moves along the cylinder is increased, thereby ensuring the passability. At the same time, a limiting mechanism is arranged on the welding platform, so that the cylinder can continuously move around the outer wall of the cylinder, and the welding mechanism can be used to achieve continuous welding of the outer cylinder.

Description

Technical Field

[0001] The invention relates to the field of rotary kilns, in particular to a continuous welding device for an outer cylinder of a rotary kiln. Background Art

[0002] The rotary kiln is a rotary calcining kiln, which is a cylinder placed on a supporting device. It is a thermal equipment mainly used for heating bulk or slurry materials. It is the main equipment in the production process line of cement plants. The combustion chamber of the rotary kiln is a large-sized cylinder with a certain inclination angle. The rotating cylinder is used to make the material rotate and move forward continuously, and calcine continuously during the rotation process. Since the temperature that the rotary kiln has to withstand is extremely high, most rotary kilns are hollow structures. The heat loss is reduced by filling the hollow structure with insulation materials. Therefore, during the installation process of the rotary kiln, not only the inner wall but also the outer wall needs to be welded. The outer diameter of the rotary kiln can generally reach 6m. During the welding process, it is mainly manual cooperation with welding equipment to make the kiln body rotate continuously, and the top of the kiln body is welded by submerged arc welding through the girth weld. However, this welding method is inefficient, and the slight vibration generated by the rotating kiln body will continuously affect the stability of the rotary kiln connection. Therefore, a device that can stably and continuously weld the outer wall of the rotary kiln is needed to ensure the welding quality. Summary of the invention

[0003] The object of the present invention is to provide a continuous welding device for the outer cylinder of a rotary kiln. The welding device can continuously move around the outer cylinder of the rotary kiln through an outer wall walking device, thereby driving the welding equipment to continuously weld around the outer cylinder of the rotary kiln to ensure the welding efficiency. At the same time, the rotary kiln does not need to rotate anymore, which can effectively reduce the influence of vibration on the weld.

[0004] The objective of the present invention is achieved through the following technical solutions:

[0005] A continuous welding device for the outer cylinder of a rotary kiln comprises a welding platform, a driving motor, a traveling wheel, a limiting mechanism and a welding mechanism. The driving motors are installed at the bottom of the four corners of the welding platform, and the output shafts of the four driving motors are parallel. The traveling wheels are located on both sides of the welding platform and are connected to the output shafts of the driving motors. The limiting mechanism and the welding mechanism are respectively arranged along the traveling direction of the welding platform.

[0006] A path detection camera is provided on the side wall of the welding platform.

[0007] The limiting mechanism includes a support seat, a synchronous wheel, a tensioning wheel, a spring column and a synchronous belt. The four corners of the support seat are provided with hollow columns extending upward, and a spring column is vertically installed in each hollow column. The movable end of the spring column is located at the upper part of the hollow column. The two ends of the tensioning wheel are rotatably connected with the movable end of the spring column. The rotation direction of the tensioning wheel is the same as or opposite to the rotation direction of the traveling wheel. A synchronous wheel is installed on the support seat below the two tensioning wheels. The synchronous wheel is parallel to the axis of the tensioning wheel. After the synchronous belt passes around the tensioning wheel, it is connected to the synchronous wheel in a V shape. The two ends of the synchronous belt are placed on the tensioning wheel and extend to the outer wall of the kiln body.

[0008] A reduction motor connected to a synchronous wheel is installed on the side wall of one side of the support seat.

[0009] The tooth surface of the synchronous belt is arranged outward.

[0010] One end of the synchronous belt is fixedly connected by a quick-release connector, and the quick-release connector includes a buckle, a pressure plate and a connecting rod. The buckle is T-shaped, and one end of the pressure plate is hinged on the side wall of the T-shaped buckle, and the two sides of the other end are hinged to the connecting rod. The connecting rod is hinged at both ends of the buckle, and the side wall of the pressure plate facing the same side as the synchronous belt is processed with teeth that are adapted to the tooth surface profile of the synchronous belt.

[0011] The welding mechanism includes a rotating seat, a support frame, a mechanical arm, a welding gun and a raw material rack. The rotating seat is rotatably mounted on the welding platform, the support frame is mounted in the middle of the rotating seat, the mechanical arm is mounted on the upper part of the side wall of the support frame away from the limiting mechanism, a welding gun is mounted on one end of the mechanical arm away from the support frame, and the raw material rack is mounted on the upper part of the support frame away from the mechanical arm.

[0012] A monocular camera for detecting welds is installed on the mechanical arm on one side of the welding gun.

[0013] A cargo tray for winding welding wire is arranged on the raw material rack, a wire tube is coaxially installed in the middle of the cargo tray, the wire tube is located above the limiting mechanism, and a support rod for supporting the wire tube is arranged on the cargo tray.

[0014] The rotary kiln outer cylinder continuous welding device provided by the present invention has the following beneficial effects:

[0015] (1) By setting up a welding platform and installing driving motors and traveling wheels at the four corners of the welding platform, the driving force of the welding platform is increased when it moves along the cylinder, thereby ensuring the passability. At the same time, a limiting mechanism is set on the welding platform, so that the cylinder can move continuously around the outer wall of the cylinder, and the welding mechanism can be used to achieve continuous welding of the outer cylinder;

[0016] (2) By setting a support seat to install the synchronous wheel and the tensioning wheel to tighten the synchronous belt, the welding platform can be restricted to the outer wall of the kiln body, so that it can move cyclically along the outer wall of the kiln body, thereby realizing continuous welding. In addition, the tooth surface of the synchronous belt is arranged outward, which can facilitate the connection between the synchronous wheel and the synchronous belt on the one hand, and prevent the tooth surface from being pressed and worn again, causing the welding platform to slip on the other hand;

[0017] (3) By installing a support frame on the rotating seat, and installing a robotic arm and a raw material rack on the support frame, the raw materials used for welding processing can be stably transported toward the welding machine, thereby ensuring the quality of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 A schematic diagram of a top view of the structure provided by an embodiment of the present invention.

[0020] Figure 2 A schematic diagram of a side view structure provided by an embodiment of the present invention.

[0021] Figure 3 A schematic structural diagram of a quick-release connector provided in an embodiment of the present invention.

[0022] Figure 4 A schematic diagram of the use status provided by an embodiment of the present invention.

[0023] Attached figures: 1. welding platform; 11. path detection camera; 2. driving motor; 3. traveling wheel; 4. limiting mechanism; 41. supporting seat; 42. synchronous wheel; 43. tensioning wheel; 44. spring column; 45. synchronous belt; 46. reduction motor; 5. welding mechanism; 51. rotating seat; 52. supporting frame; 53. robotic arm; 54. welding gun; 55. raw material rack; 56. monocular camera; 57. pallet; 58. wire tube; 59. support rod; 6. quick release connector; 61. buckle; 62. pressure plate; 63. connecting rod; 64. teeth. DETAILED DESCRIPTION

[0024] Example

[0025] like Figure 1~Figure 4As shown, the rotary kiln outer cylinder continuous welding device provided in this embodiment includes a welding platform 1, a driving motor 2, a traveling wheel 3, a limiting mechanism 4 and a welding mechanism 5. The driving motors 2 are installed at the bottom of the four corners of the welding platform 1. The output shafts of the four driving motors 2 are parallel. The traveling wheels 3 are located on both sides of the welding platform 1 and are connected to the output shafts of the driving motors 2. The four traveling wheels 3 are driven by the four driving motors 2, so that each traveling wheel 3 on the welding platform 1 can provide power, providing driving force for the welding platform 1 to rotate around the outer cylinder. A path detection camera 11 is provided on the side wall of the welding platform 1. The path detection camera 11 is used to monitor the traveling direction of the welding platform 1. After the traveling direction is offset, the traveling direction of the welding platform 1 is adjusted by adjusting the rotation speed of the four driving motors 2 to ensure the stability of the movement. The limiting mechanism 4 and the welding mechanism 5 are respectively arranged along the traveling direction of the welding platform 1.

[0026] like Figure 1 , Figure 2 As shown, the limiting mechanism 4 includes a support seat 41, a synchronous wheel 42, a tensioning wheel 43, a spring column 44 and a synchronous belt 45. The four corners of the support seat 41 are provided with hollow columns extending upward, and a spring column 44 is vertically installed in each hollow column. The movable end of the spring column 44 is located at the upper part of the hollow column. The two ends of the tensioning wheel 43 are rotatably connected with the movable end of the spring column 44. The tensioning wheel 43 can be extended upward under the action of the spring column 44 to increase the distance between the tensioning wheel 43 and the synchronous wheel 42, thereby adjusting the tightness of the synchronous belt 45. The rotation direction of the tensioning wheel 43 is the same as or opposite to that of the traveling wheel 3. A synchronous wheel 42 is installed on the support seat 41 below the two tensioning wheels 43. The synchronous wheel 42 is parallel to the axis of the tensioning wheel 43. The synchronous belt 45 passes around the tensioning wheel 43 and is connected to the synchronous wheel 42 in a V shape. Both ends of the synchronous belt 45 are placed on the tensioning wheel 43 and extend to the outer wall of the kiln body. A reduction motor 46 is installed on the side wall of one side of the support seat 41 and connected to the synchronous wheel 42. The reduction motor 46 is used to adjust the movement of the welding platform 1 during welding. In addition, in order to ensure the moving distance, the tooth surface of the synchronous belt 45 is set outward. The tooth surface set in this way can prevent tooth surface wear on the one hand and improve accuracy on the other hand.

[0027] like Figure 3As shown, in order to adapt to outer cylinders of different diameters, one end of the synchronous belt 45 is fixedly connected by a quick-release connector 6, and the quick-release connector 6 includes a buckle 61, a pressure plate 62 and a connecting rod 63. The buckle 61 is T-shaped, and one end of the pressure plate 62 is hinged on the side wall of the T-shaped buckle 61, and the two sides of the other end are hinged to the connecting rod 63. The connecting rod 63 is hinged at both ends of the buckle 61. The side wall of the pressure plate 62 and the synchronous belt 45 facing the same side is processed with teeth 64 that are adapted to the tooth surface profile of the synchronous belt 45. When in use, the connecting rod 63 is rotated to expand the pressure plate 62. After the synchronous belt 45 is installed, the connecting rod 63 is rotated again to make the pressure plate 62 press the two ends of the synchronous belt 45 to close the loop of the synchronous belt 45.

[0028] like Figure 1 , Figure 2 As shown, in order to facilitate welding operations, the welding mechanism 5 includes a rotating seat 51, a support frame 52, a mechanical arm 53, a welding gun 54 and a raw material rack 55. The rotating seat 51 is rotatably mounted on the welding platform 1, the support frame 52 is mounted in the middle of the rotating seat 51, the mechanical arm 53 is mounted on the upper part of the side wall of the support frame 52 away from the limiting mechanism 4, the welding gun 54 is mounted on the end of the mechanical arm 53 away from the support frame 52, and the raw material rack 55 is mounted on the upper part of the support frame 52 away from the side of the mechanical arm 53. A monocular camera 56 for detecting welds is installed on the mechanical arm 53 on one side of the welding gun 54. The monocular camera 56 is used to detect the weld position, and the mechanical arm 53 drives the welding gun 54 to move along the mechanical arm 53.

[0029] In addition, in order to ensure the continuity of welding, a pallet 57 for winding the welding wire is provided on the raw material rack 55, and a wire tube 58 is coaxially installed in the middle of the pallet 57. A power line and an air pipe are installed in the wire tube 58. The wire tube 58 is located above the limiting mechanism 4. A support rod 59 for supporting the wire tube 58 is provided on the pallet 57. The support rod 59 can improve the structural strength of the wire tube 58.

[0030] The method of using the present invention is:

[0031] When in use, place the welding platform 1 on the top of the connection of the outer cylinder, then pass the synchronous belt 45 around the synchronous wheel 42 with the tooth surface facing outward, pass the two ends around the tensioning wheel 43, and then pass the synchronous belt 45 around the outer cylinder, and then use the quick-release connector 6 to connect the two ends of the synchronous belt 45. When the synchronous belt 45 is connected, first press the tensioning wheel 43 downward to make the spring column 44 in a compressed state. After the two ends of the synchronous belt 45 are connected in a closed loop, release the tensioning wheel 43. At this time, the synchronous belt 45 is in a taut state, and then start the drive motor 2. The drive motor 2 measures the time and distance that the welding platform 1 travels along the outer cylinder for one circle. Then the drive motor 2 is adjusted to the idling state, and the reduction motor 46 is used to drive the welding platform 1 to rotate around the outer cylinder again. During this period, the single-eye Camera 56 detects the weld path, and path detection camera 11 detects the offset of the welding platform 1. After adjusting the offset position and offset, the control unit of the data quantity drive motor 2 is simulated and tested. After it is correct, the welding platform 1 is adjusted to the initial position, and then the welding wire is placed on the pallet 57, and the protective gas required for welding and the power cord of the welding machine are contacted through the wire tube 58, and sufficient wire length is reserved. Then the synchronous wheel 42 drives the welding platform 1 to move slowly under the drive of the reduction motor 46. During the movement, the robot arm 53 drives the welding gun 54 to continuously weld the connecting gap on the outer cylinder. When the welding platform 1 is about to enter the deviation, the corresponding drive motor 2 drives the traveling wheel 3 to rotate, so that the welding platform 1 moves smoothly.

[0032] The above is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any modification and replacement based on the technical solution and inventive concept provided by the present invention shall be included in the protection scope of the present invention. It should be noted that the structures or components illustrated in the drawings are not necessarily drawn to scale, and the present invention omits the description of known components and processing technologies and processes to avoid unnecessary limitation of the present invention.

Claims

1. A continuous welding device for the outer cylinder of a rotary kiln, characterized in that: The welding platform (1) comprises a welding platform (1), a driving motor (2), a traveling wheel (3), a limiting mechanism (4) and a welding mechanism (5), wherein the driving motors (2) are installed at the bottom of the four corners of the welding platform (1), the output shafts of the four driving motors (2) are parallel, the traveling wheels (3) are located on both sides of the welding platform (1) and are connected to the output shafts of the driving motors (2), the limiting mechanism (4) and the welding mechanism (5) are respectively arranged along the traveling direction of the welding platform (1), a path detection camera (11) is arranged on the side wall of the welding platform (1), the limiting mechanism (4) comprises a support seat (41), a synchronous wheel (42), a tensioning wheel (43), a spring column (44) and a synchronous belt (45), and the four corners of the support seat (41) are each provided with a spring column (44) extending upwards. A hollow column, each hollow column is vertically installed with a spring column (44), the movable end of the spring column (44) is located at the upper part of the hollow column, the two ends of the tension wheel (43) are rotatably connected to the movable end of the spring column (44), the rotation direction of the tension wheel (43) is the same as or opposite to the rotation direction of the traveling wheel (3), a synchronous wheel (42) is installed on the support seat (41) below the two tension wheels (43), the synchronous wheel (42) is parallel to the axis of the tension wheel (43), the synchronous belt (45) is connected to the synchronous wheel (42) in a V shape after passing the tension wheel (43), the two ends of the synchronous belt (45) are placed on the tension wheel (43) and extend to the outer wall of the kiln body, and a reduction motor (46) is installed on the side wall of one side of the support seat (41) ) is connected to a synchronous wheel (42), the tooth surface of the synchronous belt (45) is arranged outward, one end of the synchronous belt (45) is fixedly connected via a quick-release connector (6), the quick-release connector (6) comprises a buckle (61), a pressure plate (62) and a connecting rod (63), the buckle (61) is T-shaped, one end of the pressure plate (62) is hinged on the side wall of the T-shaped buckle (61), and the two sides of the other end are hinged to the connecting rod (63), the connecting rod (63) is hinged to the two ends of the buckle (61), the side wall of the pressure plate (62) and the synchronous belt (45) facing the same side is processed with teeth (64) adapted to the tooth surface profile of the synchronous belt (45), the welding mechanism (5) comprises a rotating seat (51), a support frame (52), a mechanical arm (53) ), a welding gun (54) and a material rack (55), the rotating seat (51) being rotatably mounted on the welding platform (1), the supporting frame (52) being mounted in the middle of the rotating seat (51), the mechanical arm (53) being mounted on the upper part of the side wall of the supporting frame (52) away from the limiting mechanism (4), the end of the mechanical arm (53) away from the supporting frame (52) being mounted with a welding gun (54), the material rack (55) being mounted on the upper part of the supporting frame (52) away from the side of the mechanical arm (53), a monocular camera (56) for detecting welds being mounted on the mechanical arm (53) on the side of the welding gun (54), a cargo tray (57) for winding welding wire being provided on the material rack (55), a wire tube (58) being coaxially mounted in the middle of the cargo tray (57),The wire tube (58) is located above the limiting mechanism (4), and a support rod (59) for supporting the wire tube (58) is provided on the cargo tray (57).

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