Rotary pivot mechanism for submerged arc welding and submerged arc welding device

Abstract

The utility model relates to a rotary pivot mechanism for submerged-arc welding and a submerged-arc welding device, which comprise a slewing mechanism, a fixed part of the slewing mechanism is fixed with the bottom end of a pivot fixing frame, the pivot fixing frame is fixed with a welding flux conveying stator, and the bottom end of the welding flux conveying stator is coaxially and rotatably connected with a welding flux conveying rotor. The welding flux conveying rotor is coaxially fixed with a rotating part of the rotating mechanism, the welding flux conveying stator and the welding flux conveying rotor are both of hollow structures, inner cavities of the welding flux conveying stator and the welding flux conveying rotor are communicated with each other, a plurality of line sliding rings are fixed on the inner side of the welding flux conveying stator, and the line sliding rings and the welding flux conveying stator are coaxially arranged. And the stator of the line slip ring is fixedly connected with the welding flux conveying stator. By adopting the rotating pivot mechanism, the problems of line interference and layout conflict when the submerged arc welding machine does circular motion are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to a rotating central mechanism for submerged arc welding and a submerged arc welding device. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] At present, when the submerged arc welding equipment makes circular motion according to the welding requirements, the communication lines, power lines and flux transmission of the equipment will inevitably encounter problems such as signal interference and layout conflicts. To solve this problem, it is necessary to connect the control system, power supply system and flux supply system to the rotating drive mechanism that drives the submerged arc welding equipment, so that the control system, power system and flux supply system move synchronously with the submerged arc welding equipment, which increases the load of the rotating drive mechanism and increases energy consumption. At the same time, if multiple submerged arc welding equipment need to move, each submerged arc welding equipment needs to be equipped with a control system, power system and flux supply system, which increases equipment investment and cost. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and to provide a rotating central mechanism for submerged arc welding and a submerged arc welding device, which solves the interference and layout conflict problems of communication lines, power lines and flux transmission lines when the submerged arc welding equipment makes circular motion, and the equipment investment cost is low.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] In the first aspect, an embodiment of the utility model provides a rotating central mechanism for submerged arc welding, including a slewing mechanism, wherein the fixed part of the slewing mechanism is fixed to the bottom end of the central fixing frame, the central fixing frame is fixed to the flux conveying stator, the bottom end of the flux conveying stator is coaxially rotatably connected with the flux conveying rotor, the flux conveying rotor is coaxially fixed to the rotating part of the slewing mechanism, the flux conveying stator and the flux conveying rotor both adopt a hollow structure and the internal cavities are interconnected, a plurality of line slip rings are fixed to the inner side of the flux conveying stator, the plurality of line slip rings are coaxially arranged with the flux conveying stator, and the stator of the line slip ring is fixedly connected to the flux conveying stator.

[0007] Optionally, the line slip ring includes a coaxially arranged control line slip ring, a welding machine control power supply slip ring and a welding machine conductor power supply slip ring which are arranged in sequence from top to bottom.

[0008] Optionally, a fan coaxial with the flux conveying stator is disposed on the top surface of the flux conveying stator.

[0009] Optionally, an air inlet pipe is fixed to the cavity of the flux conveying rotor, one end of the air inlet pipe extends to the outer ring plate of the flux conveying rotor, and the other end extends to the inner ring plate of the flux conveying rotor, and the air inlet pipe connects the inner and outer spaces of the flux conveying rotor to each other.

[0010] Optionally, a plurality of air intake pipes are provided, and the plurality of air intake pipes are arranged at equal intervals along the circumferential direction.

[0011] Optionally, the stator of the line slip ring is fixedly connected to a plurality of support members, and the support members are fixedly connected to the inner annular surface of the flux conveying stator.

[0012] Optionally, the flux conveying rotor includes a first rotor part and a second rotor part, the first rotor part is rotatably connected to the bottom end of the flux conveying stator, the bottom end of the second rotor part is fixedly connected to the rotating part of the rotating mechanism, and an inverted cone transition part is provided between the first rotor part and the second rotor part.

[0013] Optionally, the slewing mechanism adopts a slewing support platform, the fixed part of the slewing support platform is fixedly connected to the central fixed frame, and the slewing part is connected to a crossbeam, which is used to fix the submerged arc welding machine.

[0014] Optionally, guide pulleys are provided at both ends of the crossbeam.

[0015] In the second aspect, an embodiment of the utility model provides a submerged arc welding device, which is provided with a rotating central mechanism for submerged arc welding as described in the first aspect, and the rotating mechanism is installed with at least one submerged arc welding machine, the cable of the submerged arc welding machine cooperates with the rotor of the corresponding line slip ring, and the flux delivery pipeline of the submerged arc welding machine is connected to the flux delivery rotor.

[0016] The beneficial effects of the above utility model are as follows:

[0017] The utility model discloses a rotating central mechanism, which is provided with a line slip ring, wherein the stator of the line slip ring is connected with the flux conveying stator, and the flux conveying stator is fixedly connected with the fixed part of the rotary mechanism through the central fixing frame, and the line slip ring and the rotary mechanism are coaxially arranged. When in use, the rotor of the line slip ring can cooperate with the cable of the submerged arc welding machine, and the stator can cooperate with the external power supply and control system. During the rotation of the submerged arc welding machine, the cable always cooperates with the rotor of the line slip ring, thereby realizing that the submerged arc welding machine performing circular motion is always electrically connected with the external power supply and control system. A flux conveying stator and a flux conveying rotor are also provided, and the flux conveying rotor and the flux conveying stator are both hollow structures with internal cavities connected. The flux conveying pipeline of the submerged arc welding machine can be connected with the flux conveying rotor, and the flux conveying stator can Connected to an external flux supply mechanism, the welding machine conveying rotor can rotate synchronously with the submerged arc welding machine, so that the flux conveying pipeline can always provide flux to the submerged arc welding machine, thereby overcoming the interference and layout conflict problems of communication, circuit lines and flux transmission lines caused by the circular motion of the submerged arc welding machine, and the transmission cable and the flux conveying pipeline will not be twisted due to the circular motion of the submerged arc welding machine. There is no need to make the power supply, control system and flux supply mechanism move synchronously with the submerged arc welding machine. The power supply, control system and flux supply mechanism can be fixed on an external frame or ground foundation, which reduces the load of the rotating mechanism, thereby reducing the performance requirements for the rotating mechanism. At the same time, multiple fluxes can share a set of power supply, control system and flux supply mechanism, reducing equipment investment costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation on the present application.

[0019] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0020] Figure 2 This is a sectional view of the overall structure of Embodiment 1 of the utility model;

[0021] Among them, 1. flux conveying stator, 2. flux conveying rotor, 3. vertical beam, 4. upper horizontal beam, 5. lower horizontal beam, 6. support column, 7. control line slip ring, 8. support plate, 9. welding machine control power supply slip ring, 10. welding machine wire power supply slip ring, 11. fan, 12. air intake pipe, 13. rotary support platform, 14. cross beam, 15. submerged arc welding machine, 16. guide wheel. DETAILED DESCRIPTION

[0022] For the convenience of description, if the words "upper" and "lower" appear in the present invention, they only indicate that they are consistent with the upper and lower directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0023] Example 1

[0024] The present embodiment provides a rotating central mechanism for submerged arc welding, including a slewing mechanism, wherein the fixed part of the slewing mechanism is fixedly connected to the bottom end of the central fixing frame, the central fixing frame is fixedly arranged, the central fixing frame is fixedly connected to the flux conveying stator 1, the bottom end of the flux conveying stator 1 is coaxially connected to the flux conveying rotor 2, the flux conveying rotor 2 is fixedly connected to the slewing part of the slewing mechanism, the flux conveying stator 1 and the flux conveying rotor 2 together constitute a flux conveying slip ring, the flux conveying stator 1 and the flux conveying rotor 2 both adopt an annular hollow structure, the internal cavity of the flux conveying stator 1 and the flux conveying rotor 2 are connected to the flux conveying stator 1, and the flux conveying stator 1 is connected to the flux conveying rotor 2. The internal cavities of the stator 2 are interconnected, the internal cavity of the flux delivery rotor 2 is used to communicate with the flux delivery pipeline of the submerged arc welding machine, the internal cavity of the flux delivery stator is connected to the flux supply mechanism, the flux supply mechanism can use the existing flux conveyor, the inner side of the flux delivery stator 1 is provided with a plurality of coaxially arranged line slip rings from top to bottom, the line slip ring is coaxially arranged with the flux delivery stator 1, the line slip ring can use the existing slip ring structure, including a stator, the inner side of the stator is rotatably connected with the rotor, the outer side of the stator is fixedly connected to the inner side of the flux delivery stator, and the rotor cooperates with the line of the corresponding submerged arc welding machine.

[0025] The central fixing frame adopts a rectangular frame structure formed by welding four horizontal beams, including two vertical beams 3, an upper horizontal beam 4 is arranged between the tops of the two vertical beams 3, and a lower horizontal beam 5 is arranged between the bottoms of the two vertical beams 3. The middle part of the lower horizontal beam 5 is fixedly connected to the fixed part of the rotating mechanism.

[0026] The lower horizontal beam 5 is fixedly connected to a plurality of lower fixing plates equidistantly arranged along the circumferential direction, the lower fixing plates are fixed to the bottom ends of the support columns 6, and the top ends of the support columns 6 are fixedly connected to the outer peripheral surface of the flux delivery stator 1 via the upper fixing plates, thereby achieving the fixation of the flux delivery stator 1.

[0027] The flux conveying stator 1 adopts an annular structure with a cavity inside and an open bottom end, including a coaxially arranged inner ring plate and an outer ring plate, an upper sealing plate is provided between the top ends of the inner ring plate and the outer ring plate, the bottom end of the flux conveying stator 1 is inserted into the internal space of the flux conveying rotor 2, and the flux conveying stator 1 is rotatably connected to the flux conveying rotor 2.

[0028] The flux delivery rotor 2 includes a first rotor portion and a second rotor portion which are arranged up and down. The cross-sectional size of the first rotor portion is larger than that of the second rotor portion. The first rotor portion matches the flux delivery stator 1. The bottom end of the flux delivery stator 1 is inserted into the inner space of the first rotor portion and is rotatably connected to the first rotor portion. The second rotor portion matches the rotary mechanism. The bottom end of the second rotor portion is fixedly connected to the rotary part of the rotary mechanism. An inverted cone-shaped transition portion is provided between the first rotor portion and the second rotor portion.

[0029] The first rotor part, the second rotor part and the transition part all include a coaxially arranged inner ring plate and an outer ring plate, and a lower sealing plate is provided between the bottom ends of the inner ring plate and the outer ring plate of the second rotor part to achieve sealing.

[0030] The inner space of the flux conveying stator 1 is provided with a plurality of line slip rings from top to bottom, and the plurality of line slip rings are coaxially arranged. In this embodiment, three line slip rings are arranged.

[0031] The uppermost line slip ring is the control line slip ring 7, the stator top surface of the control line slip ring 7 is connected to one end of a plurality of support members, preferably, the support member adopts a support plate, the stator top surface of the control line slip ring 7 is fixed to one end of a plurality of support plates 8, the other end of the support plate 8 is fixed to the inner side surface of the flux conveying stator 1, the stator of the control line slip ring 7 is used to be connected to the control system of the electric control cabinet of the tracking and operating system of the submerged arc welding machine through a cable, and the rotor is connected to the cable used for the actuator such as the tracker and operating system panel of the submerged arc welding machine. The technicians in this field can select the cable connected to the control line slip ring 7 according to the equipment conditions, and no further detailed description is given here.

[0032] The line slip ring located in the middle is the welding machine control power supply slip ring 9. The stator top surface of the welding machine control power supply slip ring 9 is fixed to one end of a plurality of support plates, and the other end of the support plate is fixed to the inner side surface of the flux conveying stator 1. The stator of the welding machine control power supply slip ring 9 is used to cooperate with the cable of the electric control cabinet of the submerged arc welding machine. This electric control cabinet can realize the power supply to the 220V motor and control panel of the welding gun and other 220V motors and control panels according to the signal generated by the control circuit. The rotor of the welding machine control power supply slip ring 9 is used to be connected to the cables of the actuators such as the 220V motor and control panel of the submerged arc welding machine. The technicians in this field can select the cable connected to the welding machine control power supply slip ring 9 according to the equipment conditions, and no further detailed description is given here.

[0033] The line slip ring at the bottom is a welding machine wire power supply slip ring 10. The stator top surface of the welding machine wire power supply slip ring 10 is fixed to one end of a plurality of support plates, and the other end of the support plate is fixed to the inner side surface of the flux delivery stator 1. The stator of the welding machine guide power supply slip ring 10 is used to connect with the cable of the welding power supply of the submerged arc welding machine (the welding power supply voltage is 380V, and the current can reach 1000A. The rotor is used to connect with the cable of the welding gun of the submerged arc welding machine.

[0034] In order to dissipate heat and cool down the line slip ring, the flux conveying rotor 2 and the flux conveying stator 1, a support frame is fixed to the sealing plate on the top surface of the flux conveying rotor, and a fan 11 with the air outlet end facing upward is arranged at the center of the support frame. The fan 11 is coaxially arranged with the flux conveying stator 1 and the flux conveying rotor 2.

[0035] Correspondingly, the internal cavity of the flux conveying rotor 2 is provided with a plurality of air inlet pipes 12, which are arranged along the radial direction of the flux conveying rotor 2, one end of the air inlet pipe 12 extends to the inner ring plate of the flux conveying rotor 2, and the other end extends to the outer ring plate of the flux conveying rotor 2. The internal space of the flux conveying slip ring is connected with the external space through the air inlet pipe 12, and the fan can be powered on and rotated to generate an airflow blowing to the outside. After the cool air of the flux conveying rotor and the outer wall of the stator enters from the air inlet pipe, the hot air generated by the slip ring, etc., is taken out of the cavity under the drive of the fan.

[0036] Preferably, filter cotton is provided in the air intake pipe, and the filter cotton in the air intake pipe processes the incoming air to avoid damage to electrical components such as slip rings.

[0037] Preferably, the plurality of air inlet pipes 12 are arranged at equal intervals along the circumferential direction.

[0038] The slewing mechanism includes a slewing support platform 13. The slewing support platform 13 can use existing equipment. Its specific structure is not described in detail here. The fixed part of the slewing support platform 13 is fixed to the lower horizontal beam 5, and its slewing part is fixed to the middle position of the cross beam 14 and the bottom end of the welding machine conveying rotor 2, which can drive the cross beam 14 to rotate. The cross beam 14 is used to install the submerged arc welding machine 15, and can drive the submerged arc welding machine 15 to make a circular motion. Guide wheels 16 are provided at both ends of the cross beam 14. The guide wheels 16 are used to cooperate with the circular guide rail to guide the rotation of the cross beam 14.

[0039] When the rotating central mechanism of the present embodiment is used, the rotor of the line slip ring can cooperate with the cable of the submerged arc welding machine 15, and the stator can cooperate with the external power supply and control system. During the rotation of the submerged arc welding machine, the cable always cooperates with the rotor of the line slip ring, thereby realizing that the submerged arc welding machine performing circular motion is always electrically connected to the external power supply and control system. A flux conveying stator 1 and a flux conveying rotor 2 are also provided. The flux conveying rotor 2 and the flux conveying stator 1 are both hollow structures and the internal cavities are connected. The flux conveying pipeline of the submerged arc welding machine can be connected to the flux conveying rotor 2, and the flux conveying stator 1 can be connected to an external flux supply mechanism. The welding machine conveying rotor can rotate synchronously with the submerged arc welding machine, so that the flux conveying pipeline can always provide flux to the submerged arc welding machine, thereby overcoming the interference and layout conflict of communication, circuit lines and flux transmission lines caused by the circular motion of the submerged arc welding machine. There is no need to make the power supply, control system and flux supply mechanism move synchronously with the submerged arc welding machine. The power supply, control system and flux supply mechanism can be fixed on an external frame or ground foundation, which reduces the load of the rotating mechanism, thereby reducing the performance requirements for the rotating mechanism. At the same time, multiple fluxes can share a set of power supply, control system and flux supply mechanism, reducing the equipment investment cost.

[0040] Example 2

[0041] The present embodiment provides a submerged arc welding mechanism, including the rotating central mechanism for submerged arc welding described in Embodiment 1, wherein at least one submerged arc welding machine 15 is fixed on the crossbeam. In the present embodiment, two submerged arc welding machines 15 are fixed on the bottom surface of the crossbeam 14 .

[0042] The stator of the control line slip ring 7 is connected to the control system of the electric control cabinet of the tracking and operating system of the submerged arc welding machine 15 through a cable, and the rotor is connected to the cables of the actuators such as the tracker and operating system panel of the submerged arc welding machine. The cables of the actuators are connected to the center of the joint, and the joint is inserted into the rotor of the control line slip ring and fixedly connected to the rotor. The technicians in this field can select the cable connected to the control line slip ring 7 according to the equipment conditions, and no further detailed description is given here.

[0043] The stator of the welding machine control power slip ring 9 cooperates with the cable of the electric control cabinet of the submerged arc welding machine. The electric control cabinet can realize the power supply to the 220V motor and control panel of the welding gun and the like according to the signal generated by the control circuit. The rotor of the flux control power slip ring 9 is connected to the cables of the actuators such as the 220V motor and control panel of the submerged arc welding machine through the bottom connecting frame. Those skilled in the art can select the cable connected to the welding machine control power slip ring 9 according to the equipment conditions, and no further detailed description is given here.

[0044] The stator of the welding machine guide power supply slip ring 10 is connected to the cable of the welding power supply of the submerged arc welding machine (the welding power supply voltage is 380V, and the current can reach 1000A, and the rotor is connected to the cable of the welding gun of the submerged arc welding machine through the bottom.

[0045] In this embodiment, the connection method between each slip ring and the cable can be adopted by the existing technology, and no further detailed description is given here.

[0046] The end of the flux conveying pipeline of the submerged arc flux is connected to the flux conveying rotor and communicated with the inner cavity of the flux conveying rotor.

[0047] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A rotating central mechanism for submerged arc welding, characterized in that: It includes a rotating mechanism, the fixed part of the rotating mechanism is fixed to the bottom end of the central fixing frame, the central fixing frame is fixed to the flux conveying stator, the bottom end of the flux conveying stator is coaxially connected with the flux conveying rotor, the flux conveying rotor is coaxially fixed to the rotating part of the rotating mechanism, the flux conveying stator and the flux conveying rotor both adopt a hollow structure and the internal cavities are interconnected, a plurality of line slip rings are fixed on the inner side of the flux conveying stator, the plurality of line slip rings are coaxially arranged with the flux conveying stator, and the stator of the line slip ring is fixedly connected to the flux conveying stator.

2. A submerged arc welding rotating central mechanism as claimed in claim 1, characterized in that: The line slip ring comprises a coaxially arranged control line slip ring, a welding machine control power supply slip ring and a welding machine conductor power supply slip ring which are arranged in sequence from top to bottom.

3. A submerged arc welding rotating central mechanism as claimed in claim 1, characterized in that: The top surface of the flux conveying stator is provided with a fan coaxial therewith.

4. A submerged arc welding rotating central mechanism as claimed in claim 3, characterized in that: An air inlet pipe is fixed to the cavity of the flux conveying rotor, one end of the air inlet pipe extends to the outer ring plate of the flux conveying rotor, and the other end extends to the inner ring plate of the flux conveying rotor. The air inlet pipe connects the inner and outer spaces of the flux conveying rotor to each other.

5. A submerged arc welding rotating central mechanism as claimed in claim 4, characterized in that: The air intake pipes are arranged in plurality, and the plurality of air intake pipes are arranged at equal intervals along the circumferential direction.

6. A submerged arc welding rotating central mechanism as claimed in claim 1, characterized in that: The stator of the line slip ring is fixedly connected to a plurality of support members, and the support members are fixedly connected to the inner ring surface of the flux conveying stator.

7. A submerged arc welding rotating central mechanism as claimed in claim 1, characterized in that: The flux conveying rotor comprises a first rotor part and a second rotor part, wherein the first rotor part is rotatably connected to the bottom end of the flux conveying stator, the bottom end of the second rotor part is fixedly connected to the rotating part of the rotating mechanism, and an inverted cone transition part is provided between the first rotor part and the second rotor part.

8. A submerged arc welding rotating central mechanism as claimed in claim 1, characterized in that: The slewing mechanism adopts a slewing support platform, the fixed part of the slewing support platform is fixedly connected to the central fixed frame, and the slewing part is connected with a crossbeam, which is used to fix the submerged arc welding machine.

9. A submerged arc welding rotating central mechanism as claimed in claim 8, characterized in that: Both ends of the crossbeam are provided with guide pulleys.

10. A submerged arc welding device, characterized in that: A rotating central mechanism for submerged arc welding as described in any one of claims 1 to 9 is provided, and at least one submerged arc welding machine is installed on the rotating mechanism. The cable of the submerged arc welding machine cooperates with the rotor of the corresponding line slip ring, and the flux delivery pipeline of the submerged arc welding machine is connected to the flux delivery rotor.

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