Welding repair coping equipment and method for machining main roller of ring rolling machine

Abstract

The invention discloses welding repair coping equipment and method for ring rolling machine main roller machining, and relates to the technical field of ring rolling machine main rollers. A telescopic heat storage assembly is installed at the corner of an S-shaped heat flow channel, the telescopic heat storage assembly is controlled by hot air flow, when the hot air flow is small, heat exchange of the telescopic heat storage assembly is small, and the heat exchange efficiency of the telescopic heat storage assembly is improved. When the hot air flow is large, the telescopic heat storage assembly exchanges much heat, the flow guide blocks on the inner wall of the S-shaped heat flow channel guide air flow to flow orderly along the channel, the telescopic heat storage assembly at the corner of the channel achieves heat exchange under different hot air flows, and when the hot air flow is large, the impact force of the air flow is increased; the circular heat storage blocks are pushed to slide along the inner walls of the annular heat storage blocks, the springs are extruded, the heat exchange area is increased, and the preheating speed is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ring rolling machine main roller, in particular to a welding repair and grinding equipment and method for ring rolling machine main roller processing. BACKGROUND

[0002] The ring rolling machine main roller is the core component of the ring rolling machine. The ring rolling machine drives the metal ring to rotate continuously and applies radial rolling force through the cooperation with the core roller, so as to produce the ring with the diameter and wall thickness meeting the size. The ring rolling machine main roller is usually made of high-strength alloy steel. When the ring rolling machine main roller bears the rolling pressure for a long time, micro cracks are easily generated and expanded to peeling, so that fatigue cracks are generated on the outer wall of the ring rolling machine main roller. If the cracks are not repaired in time, the ring rolling machine main roller may be broken, which may cause hidden troubles for production safety.

[0003] The existing ring rolling machine main roller welding repair equipment mainly welds the welding wire on the cracks of the main roller. Before welding, the main roller usually needs to be heated and preheated. The existing main roller is usually provided in a conical solid shape, and the wider end of the main roller needs to be continuously heated. Since it is a solid structure, the temperature conduction is slow, the temperature of one end of the main roller continuously rises, and the temperature of the other end of the main roller preheats slowly. The adhesion between the welding wire and the surface of the conical roller is poor. The welding wire needs to wait for the preheating of the main roller before welding, so as to affect the welding efficiency of the welding wire. In view of the above problems, the present application provides a welding repair and grinding equipment and method for ring rolling machine main roller processing to solve the above problems. SUMMARY

[0004] In order to solve the problem of slow preheating of the conical roller, the present application aims to provide a welding repair and grinding equipment and method for ring rolling machine main roller processing.

[0005] In order to solve the above technical problems, the present application adopts the following technical scheme: a welding repair and grinding equipment for ring rolling machine main roller processing, comprising a bearing frame, a welding assembly and a conical roller. One end of the bearing frame is provided with a driving assembly. A rotating shaft is fixedly connected to the outer wall of the conical roller. The driving assembly drives the rotating shaft and the conical roller to rotate. The welding assembly surrounds the outer wall of the conical roller for repair. A second gear ring is fixedly connected to the outer wall of one end of the rotating shaft. A hot air inlet assembly for controlling the entry of hot air is rotatably arranged at one end of the conical roller. The second gear ring drives the hot air inlet assembly. An S-shaped hot air passage is arranged in the conical roller. The S-shaped hot air passage is used to match the shape of the conical roller. The S-shaped hot air passage is arranged closely to the outer wall of the conical roller. A plurality of flow guiding blocks for guiding air flow are arranged on the inner wall of the S-shaped hot air passage. A plurality of telescopic heat storage assemblies are arranged in the S-shaped hot air passage. The retractable heat storage assembly is installed at the corner of the S-shaped heat flow channel. The retractable heat storage assembly is controlled by the hot gas flow rate. When the hot gas flow rate is low, the retractable heat storage assembly has less heat exchange. When the hot gas flow rate is high, the retractable heat storage assembly has more heat exchange. One end of the S-shaped heat flow channel is connected to a chamber, and the chamber is connected to two heat flow channels, and the heat flow channels are connected to one end away from the S-shaped heat flow channel along the slope of the tapered roller; A heat discharge component is rotatably provided at one end of the tapered roller, and the heat flow channel is connected to the heat discharge component. The heat discharge component is used to supplement heat for welding and prevent cracks caused by rapid cooling of the outer wall of the welded tapered roller.

[0006] Preferably, the driving assembly includes a driving motor and a driving gear, the driving motor is mounted on an outer wall of one end of the carrier, and the driving gear is mounted on an output shaft of the driving motor; Two arc blocks are provided on the top of the carrier, and the rotating shaft is placed on the two arc blocks and is rotatably connected. A first gear ring is fixedly connected to the outer wall of one end of the rotating shaft, and the first gear ring is threadedly connected to the driving gear.

[0007] Preferably, the welding assembly includes a support frame and a welding gun, a waste collection box is fixedly connected to the outer wall of one end of the support frame, a sliding frame is slidably connected to the interior of the support frame, a stepping motor is installed on the outer wall of the sliding frame, a stepping gear is connected to the output shaft of the stepping motor, a rack is fixedly connected to the outer wall of the support frame, and the rack is threadedly connected to the stepping gear; The middle part of the sliding frame is rotatably connected to a roller, the outer wall of the roller is wound with welding wire, the outer wall of the sliding frame is mounted with a welding gun, the welding gun extends to the outside of the tapered roller, and the welding wire is fed to the welding gun.

[0008] Preferably, the heat flow air intake assembly includes a driven gear, a mounting bracket, a fan blade, a heat flow circulation pipe and a first rotating ring, the first rotating ring is rotatably connected to one end of the conical roller and is connected, the outer wall of the first rotating ring is connected to the heat flow circulation pipe, the inner wall of the heat flow circulation pipe is fixedly connected to the mounting bracket, the fan blade is rotatably connected to the mounting bracket, the driven gear is connected to the rotating shaft of the fan blade, a number of through holes for air flow are opened on the outer wall of the driven gear, and the second gear ring is threadedly connected to the driven gear.

[0009] Preferably, an inner cavity is provided between the first rotating ring and the tapered roller, and an air inlet is provided at one end of the S-shaped heat flow channel, and the air inlet extends into the interior of the inner cavity.

[0010] Preferably, the heat flow discharge component includes a second rotating ring, a retractable hose, a heat flow discharge pipe and a valve. The second rotating ring is rotatably connected to one end of the conical roller. The retractable hose is plugged into the second rotating ring. Two heat flow discharge pipes are connected on the outer wall of the retractable hose.

[0011] Preferably, a valve for flow control is installed on the outer wall of the heat dissipation pipe.

[0012] Preferably, the retractable heat storage assembly includes a spring, a circular heat storage block and an annular heat storage block. A mounting groove is installed inside the S-shaped heat flow channel, the annular heat storage block is installed on the inner wall of the mounting groove, one end of the spring is connected to the inner wall of the mounting groove, and the circular heat storage block is connected to one end of the spring.

[0013] Preferably, the circular heat storage block is slidably connected to the inner wall of the annular heat storage block.

[0014] A method for using a ring rolling machine main roller processing welding repair and grinding equipment, comprising the following steps: Step 1: Place the rotating shaft on the arc block at the top of the carrier frame, the first gear ring contacts the driving gear, and the driving motor and the driving gear drive the rotating shaft and the tapered roller to rotate; Step 2: Fix the hot air intake assembly, rotate the hot air intake assembly relative to the rotating shaft and the tapered roller, and drive the hot air intake assembly with the second gear ring; Step 3: The hot air flows into the S-shaped hot air channel through the hot air inlet assembly. The guide block and the retractable heat storage assembly guide the hot air flow while slowing down the flow rate of the hot air flow, thereby increasing the heat exchange time. Step 4: The hot air flows through the hot flow channel to the hot flow exhaust component, which adds heat to the welding to prevent the outer wall of the welded tapered roller from cooling rapidly and causing cracks.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention uses the guide blocks on the inner wall of the S-shaped heat flow channel to guide the airflow to flow in an orderly manner along the channel, avoiding local airflow dead corners. The retractable heat storage components at the channel corners realize heat exchange under different hot gas flow rates. When the hot gas flow rate is large, the airflow impact force increases, pushing the circular heat storage block to slide along the inner wall of the annular heat storage block. The spring is squeezed, the heat exchange area is increased, and the heat stored in the annular heat storage block and the circular heat storage block are jointly transferred to the outer wall of the conical roller, thereby improving the preheating speed.

[0016] 2. In the process of welding surround welding, the second gear ring drives the hot flow air intake assembly, and the hot air flow enters the S-shaped hot flow channel through the hot flow air intake assembly synchronously. When the welding speed needs to be increased, the rotation speed of the rotating shaft is increased, and the outer wall of the tapered roller is welded faster. At the same time, the air intake volume of the hot flow air intake assembly is increased, and the preheating speed is improved to match the welding speed, further avoiding the problem of slow preheating speed of the tapered roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 Schematic diagram of the welding assembly of the present invention.

[0020] Figure 3 Schematic diagram of the heat dissipation component of the present invention.

[0021] Figure 4 Schematic diagram of the hot flow air intake assembly of the present invention.

[0022] Figure 5 It is a schematic diagram of the tapered roller structure of the present invention.

[0023] Figure 6 Schematic diagram of the internal structure of the tapered roller of the present invention Figure 1 .

[0024] Figure 7 Schematic diagram of the internal structure of the tapered roller of the present invention Figure 2 .

[0025] Figure 8 For the present invention Figure 7 Schematic diagram of the structure at point A in the middle.

[0026] Figure 9 This is a schematic diagram of the S-shaped heat flow channel structure of the present invention.

[0027] In the figure: 1, carrier; 2, drive motor; 3, drive gear; 4, welding assembly; 401, support frame; 402, sliding frame; 403, stepping motor; 404, stepping gear; 405, rack; 406, roller; 407, welding wire; 408, welding gun; 5, rotating shaft; 501, first gear ring; 502, second gear ring; 6, tapered roller; 601, air inlet; 602, heat flow channel; 603, S-shaped heat flow channel; 6030, Chamber; 604, guide block; 7, heat flow inlet assembly; 701, driven gear; 702, mounting frame; 703, fan blade; 704, heat flow circulation pipe; 705, first rotating ring; 8, waste collection box; 9, heat flow discharge assembly; 901, second rotating ring; 902, retractable hose; 903, heat flow discharge pipe; 904, valve; 10, retractable heat storage assembly; 1001, spring; 1002, circular heat storage block; 1003, annular heat storage block. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0029] like Figure 1 - Figure 9 As shown, the present invention provides a welding and repairing device for processing the main roller of a ring rolling machine, comprising a carrier 1, a welding assembly 4, and a tapered roller 6. A driving assembly is installed at one end of the carrier 1. A rotating shaft 5 is fixedly connected to the outer wall of the tapered roller 6. The driving assembly drives the rotating shaft 5 and the tapered roller 6 to rotate. The welding assembly 4 performs a circumferential repair on the outer wall of the tapered roller 6. A second gear ring 502 is fixedly connected to the outer wall of one end of the rotating shaft 5. A hot flow air intake assembly 7 for controlling the entry of hot air is rotatably provided at one end of the tapered roller 6. The second gear ring 502 drives the hot flow air intake assembly 7. An S-shaped heat flow channel 603 is provided inside the tapered roller 6. The S-shaped heat flow channel 603 is used to fit the shape of the tapered roller 6. The S-shaped heat flow channel 603 is provided close to the outer wall of the tapered roller 6. Several guide blocks 604 for guiding airflow are installed on the inner wall of the S-shaped heat flow channel 603, and several retractable heat storage components 10 are installed inside the S-shaped heat flow channel 603; The retractable heat storage assembly 10 is installed at the corner of the S-shaped heat flow channel 603. The retractable heat storage assembly 10 is controlled by the hot gas flow rate. When the hot gas flow rate is low, the retractable heat storage assembly 10 has less heat exchange. When the hot gas flow rate is high, the retractable heat storage assembly 10 has more heat exchange. One end of the S-shaped heat flow channel 603 is connected to a chamber 6030, and the chamber 6030 is connected to two heat flow channels 602. The heat flow channels 602 are connected along the slope of the tapered roller 6 to one end away from the S-shaped heat flow channel 603. A heat discharge component 9 is rotatably provided at one end of the conical roller 6, and the heat flow channel 602 is connected to the heat discharge component 9. The heat discharge component 9 is used to supplement heat for welding and prevent the outer wall of the welded conical roller 6 from cooling rapidly and causing cracks.

[0030] The driving assembly includes a driving motor 2 and a driving gear 3. The driving motor 2 is mounted on the outer wall of one end of the carrier 1, and the driving gear 3 is mounted on the output shaft of the driving motor 2. Two arc blocks are provided on the top of the carrier 1. The rotating shaft 5 is placed on the two arc blocks and is rotatably connected. A first gear ring 501 is fixedly connected to the outer wall of one end of the rotating shaft 5. The first gear ring 501 is threadedly connected to the driving gear 3. The purpose of this arrangement is to start the drive motor 2, and its output shaft drives the drive gear 3 to rotate. The drive gear 3 engages with the first gear ring 501 on the outer wall of the rotating shaft 5, so that the rotating shaft 5 rotates stably on the arc block at the top of the supporting frame 1, and finally drives the tapered roller 6 fixed to the rotating shaft 5 to rotate synchronously at a uniform speed.

[0031] like Figure 2 As shown, the welding assembly 4 includes a support frame 401 and a welding gun 408. A waste collection box 8 is fixedly connected to the outer wall of one end of the support frame 401. A sliding frame 402 is slidably connected to the interior of the support frame 401. A stepping motor 403 is installed on the outer wall of the sliding frame 402. A stepping gear 404 is connected to the output shaft of the stepping motor 403. A rack 405 is fixedly connected to the outer wall of the support frame 401, and the rack 405 is threadedly connected to the stepping gear 404. The middle part of the sliding frame 402 is rotatably connected to a roller 406, and a welding wire 407 is wound on the outer wall of the roller 406. A welding gun 408 is installed on the outer wall of the sliding frame 402, and the welding gun 408 extends to the outside of the tapered roller 6. The welding wire 407 is fed to the welding gun 408; The purpose of this arrangement is that the stepping motor 403 is started, driving the stepping gear 404 to rotate, the stepping gear 404 engages with the rack 405, driving the sliding frame 402 to slide along the inside of the support frame 401, and then driving the welding gun 408 on the sliding frame 402 to move along the generatrix direction of the tapered roller 6; The roller 406 in the middle of the sliding frame 402 rotates, continuously conveying the wound welding wire 407 to the welding gun 408; the welding gun 408 is electrified to generate an electric arc, melt and deposit the welding wire 407 at the defect of the outer wall of the conical roller 6, while the conical roller 6 rotates at a constant speed, the welding gun 408 moves along the bus, and the two cooperate to form a spiral weld, realizing the circumferential welding of the outer wall of the conical roller 6, and the spatter and waste generated by welding fall into the waste collection box 8, facilitating subsequent cleaning.

[0032] As shown in Figure 4 , the hot air inlet assembly 7 includes a driven gear 701, a mounting frame 702, a fan blade 703, a hot air flow pipe 704, and a first rotating ring 705, the first rotating ring 705 is rotatably connected to one end of the conical roller 6 and is in communication, the outer wall of the first rotating ring 705 is communicated with the hot air flow pipe 704, the inner wall of the hot air flow pipe 704 is fixedly connected with the mounting frame 702, the mounting frame 702 is rotatably connected with the fan blade 703, the rotating shaft of the fan blade 703 is connected with the driven gear 701, a plurality of through holes for airflow communication are formed in the outer wall of the driven gear 701, and the second gear ring 502 is threadedly connected with the driven gear 701. The purpose of such arrangement is that when the rotating shaft 5 rotates, the second gear ring 502 at one end thereof rotates synchronously, the second gear ring 502 meshes with the driven gear 701 to drive the driven gear 701 and the fan blade 703 to rotate, at this time, the first rotating ring 705 keeps relative rotation with the conical roller 6, ensuring stable input of hot air flow, while avoiding pipeline winding, and the first rotating ring 705 can be fixed by external structural devices.

[0033] As shown in Figure 6 , an inner cavity is arranged between the first rotating ring 705 and the conical roller 6, one end of the S-shaped hot air passage 603 is provided with an air inlet hole 601, and the air inlet hole 601 extends to the inside of the inner cavity and is used for airflow communication into the inside of the S-shaped hot air passage 603.

[0034] As shown in Figure 3 , the hot air outlet assembly 9 includes a second rotating ring 901, a telescopic hose 902, a hot air discharge pipe 903, and a valve 904, the second rotating ring 901 is rotatably connected to one end of the conical roller 6, the telescopic hose 902 is inserted into the second rotating ring 901, and two hot air discharge pipes 903 are communicated with the outer wall of the telescopic hose 902. The purpose of such arrangement is to discharge hot air.

[0035] The valve 904 for flow control is installed on the outer wall of the hot air discharge pipe 903.

[0036] As shown in Figure 7As shown, the retractable heat storage assembly 10 includes a spring 1001, a circular heat storage block 1002 and an annular heat storage block 1003. A mounting groove is installed inside the S-shaped heat flow channel 603. The annular heat storage block 1003 is installed on the inner wall of the mounting groove. One end of the spring 1001 is connected to the inner wall of the mounting groove, and the circular heat storage block 1002 is connected to one end of the spring 1001, which is used to store heat flow and preheat the conical roller 6.

[0037] like Figure 8 As shown, the circular heat storage block 1002 is slidably connected to the inner wall of the annular heat storage block 1003. When the hot gas flow is large, the airflow impact force increases, pushing the circular heat storage block 1002 to slide along the inner wall of the annular heat storage block 1003. The spring 1001 is squeezed, the heat exchange area increases, and the heat stored in the annular heat storage block 1003 and the circular heat storage block 1002 are jointly transferred to the outer wall of the conical roller 6, thereby increasing the preheating speed.

[0038] A method for using a ring rolling machine main roller processing welding repair and grinding equipment, comprising the following steps: Step 1: Place the rotating shaft 5 on the top arc block of the carrier 1, and the first gear ring 501 contacts the driving gear 3. The driving motor 2 and the driving gear 3 drive the rotating shaft 5 and the tapered roller 6 to rotate; Step 2: Fix the hot air inlet assembly 7, and rotate the hot air inlet assembly 7 relative to the rotating shaft 5 and the tapered roller 6. The second gear ring 502 drives the hot air inlet assembly 7. Step 3: The hot air flows through the hot air inlet assembly 7 and enters the S-shaped hot air channel 603. The guide block 604 and the retractable heat storage assembly 10 guide the hot air flow while slowing down the flow speed of the hot air flow, thereby increasing the heat exchange time. In step 4, the hot air flows through the hot flow channel 602 to the hot flow exhaust component 9, and the hot flow exhaust component 9 adds heat to the welding to prevent the outer wall of the welded tapered roller 6 from cooling rapidly and causing cracks.

[0039] Working principle: Start the drive motor 2, and its output shaft drives the drive gear 3 to rotate. The drive gear 3 engages with the first gear ring 501 on the outer wall of the rotating shaft 5, so that the rotating shaft 5 rotates stably on the arc block at the top of the supporting frame 1, and finally drives the conical roller 6 fixed to the rotating shaft 5 to rotate synchronously at a uniform speed.

[0040] When the rotating shaft 5 rotates, the second gear ring 502 at one end thereof rotates synchronously. The second gear ring 502 meshes with the driven gear 701, driving the driven gear 701 and the fan blades 703 to rotate. At this time, the first rotating ring 705 and the conical roller 6 maintain relative rotation, ensuring stable input of hot air flow while preventing pipe entanglement. External hot air flow enters through the hot air flow circulation pipe 704, the rotating fan blade 703 controls the flow rate of the air flow, and the air flow enters the inner cavity between the first rotating ring 705 and the conical roller 6 through the through hole on the driven gear 701, and then the air flow enters the S-shaped hot air passage 603 inside the conical roller 6 through the air inlet hole 601. The S-shaped structure is attached to the outer wall of the conical roller 6, maximizing the heat exchange area.

[0041] The flow guide block 604 on the inner wall of the S-shaped hot air passage 603 guides the air flow to flow orderly along the passage, avoiding local air flow dead angles, and the telescopic heat storage assembly 10 at the corner of the passage realizes heat exchange under different hot air flow rates: When the hot air flow is small, the impact force of the air flow on the circular heat storage block 1002 is small, the spring 1001 is contracted, and the circular heat storage block 1002 is at the top port of the annular heat storage block 1003. Only the circular heat storage block 1002 exchanges with the hot air flow, and the heat exchange area is reduced. When the hot air flow is large, the impact force of the air flow is increased, which pushes the circular heat storage block 1002 to slide along the inner wall of the annular heat storage block 1003, and the spring 1001 is squeezed, the heat exchange area is increased, and the heat stored in the annular heat storage block 1003 and the circular heat storage block 1002 is transferred to the outer wall of the conical roller 6, improving the preheating speed.

[0042] The hot air flow passing through the S-shaped hot air passage 603 finally flows into the chamber 6030 and is divided into two hot air flow passages 602. The flow passage 602 is distributed along the slope of the conical roller 6, which is suitable for the conical structure of the conical roller 6. During the flow process, it plays a role in preheating the conical roller 6 again.

[0043] The stepping motor 403 is started, which drives the stepping gear 404 to rotate. The stepping gear 404 is engaged with the rack 405, which drives the sliding frame 402 to slide along the inside of the support frame 401, and then drives the welding gun 408 on the sliding frame 402 to move along the generatrix direction of the conical roller 6; The drum 406 in the middle of the sliding frame 402 rotates, continuously conveying the wound welding wire 407 to the welding gun 408; the welding gun 408 generates an electric arc when powered on, melts and deposits the welding wire 407 on the defect of the outer wall of the conical roller 6, and at the same time the conical roller 6 rotates at a constant speed. The welding gun 408 moves along the generatrix, and the two form a spiral welding bead, realizing the circumferential welding of the outer wall of the conical roller 6. The spatter and waste generated by welding fall into the waste collection box 8, which is convenient for subsequent cleaning; During this process, the welding is performed in a circumferential manner, and the second gear ring 502 drives the hot flow air intake assembly 7. The hot air flow passes through the hot flow air intake assembly 7 and enters the S-shaped hot flow channel 603 synchronously. When the welding speed needs to be increased, the rotation speed of the rotating shaft 5 is increased, and the outer wall of the conical roller 6 is welded faster. At the same time, the air intake volume of the hot flow air intake assembly 7 is increased, and the preheating speed is increased to match the welding speed, further avoiding the problem of slow preheating speed of the conical roller 6. At the same time, the diameter of the second gear ring 502 is larger than the diameter of the driven gear 701. During the rotation of the second gear ring 502 and the rotating shaft 5, the driven gear 701 rotates faster than the second gear ring 502. When the rotation speed of the rotating shaft 5 changes, the rotation speed changes of the driven gear 701 and the fan blade 703 are more obvious, so that the passage of hot air flow can be adjusted in time and quickly.

[0044] The hot air flow from the hot flow channel 602 enters the second rotating ring 901, which rotates relative to the tapered roller 6. The hot air flow is then diverted to two hot flow pipes 903 via the retractable hose 902. The flow rate of the hot air is controlled by adjusting the valves 904 on the hot flow pipes 903. Insulate the weld bead and heat-affected zone just after welding to slow down the cooling rate and reduce the risk of cracks; Secondary heat supplement is performed on the area to be welded before welding to ensure the temperature of the welding area is stable and improve the welding layer and welding efficiency.

[0045] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0046] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A welding and repairing device for processing the main roller of a ring rolling machine, comprising a carrier (1), a welding assembly (4) and a tapered roller (6), wherein a driving assembly is installed at one end of the carrier (1), a rotating shaft (5) is fixedly connected to the outer wall of the tapered roller (6), the driving assembly drives the rotating shaft (5) and the tapered roller (6) to rotate, and the welding assembly (4) performs a circumferential repair on the outer wall of the tapered roller (6), characterized in that: A second gear ring (502) is fixedly connected to the outer wall of one end of the rotating shaft (5); a heat flow intake assembly (7) for controlling the entry of hot air flow is rotatably provided at one end of the conical roller (6); and the second gear ring (502) drives the heat flow intake assembly (7); An S-shaped heat flow channel (603) is provided inside the tapered roller (6), and the S-shaped heat flow channel (603) is used to fit the shape of the tapered roller (6), and the S-shaped heat flow channel (603) is provided close to the outer wall of the tapered roller (6); Several guide blocks (604) for guiding airflow are installed on the inner wall of the S-shaped heat flow channel (603), and several retractable heat storage components (10) are installed inside the S-shaped heat flow channel (603); The retractable heat storage component (10) is installed at the corner of the S-shaped heat flow channel (603). The retractable heat storage component (10) is controlled by the hot gas flow rate. When the hot gas flow rate is low, the retractable heat storage component (10) performs less heat exchange. When the hot gas flow rate is high, the retractable heat storage component (10) performs more heat exchange. One end of the S-shaped heat flow channel (603) is connected to a chamber (6030), the chamber (6030) is connected to two heat flow channels (602), and the heat flow channels (602) are connected along the slope of the tapered roller (6) to one end away from the S-shaped heat flow channel (603); A heat flow discharge component (9) is rotatably provided at one end of the tapered roller (6), and the heat flow channel (602) is connected to the heat flow discharge component (9). The heat flow discharge component (9) is used to supplement heat for welding and prevent cracks caused by rapid cooling of the outer wall of the welded tapered roller (6).

2. The welding and grinding equipment for the main roller of a ring rolling machine according to claim 1, characterized in that: The driving assembly comprises a driving motor (2) and a driving gear (3), wherein the driving motor (2) is mounted on an outer wall of one end of the carrier (1), and the driving gear (3) is mounted on an output shaft of the driving motor (2); Two arc blocks are provided on the top of the carrier (1), and the rotating shaft (5) is placed on the two arc blocks and is rotatably connected. A first gear ring (501) is fixedly connected to the outer wall of one end of the rotating shaft (5), and the first gear ring (501) is threadedly connected to the driving gear (3).

3. The welding and grinding equipment for the main roller of a ring rolling machine according to claim 2, characterized in that: The welding assembly (4) comprises a support frame (401) and a welding gun (408); a waste collection box (8) is fixedly connected to the outer wall of one end of the support frame (401); a sliding frame (402) is slidably connected to the interior of the support frame (401); a stepping motor (403) is mounted on the outer wall of the sliding frame (402); a stepping gear (404) is connected to the output shaft of the stepping motor (403); a rack (405) is fixedly connected to the outer wall of the support frame (401); and the rack (405) is threadedly connected to the stepping gear (404); The middle part of the sliding frame (402) is rotatably connected to a roller (406), the outer wall of the roller (406) is wound with a welding wire (407), the outer wall of the sliding frame (402) is mounted with a welding gun (408), the welding gun (408) extends to the outside of the tapered roller (6), and the welding wire (407) is transported to the welding gun (408).

4. The welding and grinding equipment for main roller processing of a ring rolling machine according to claim 3, characterized in that: The heat flow air inlet assembly (7) comprises a driven gear (701), a mounting frame (702), a fan blade (703), a heat flow pipe (704) and a first rotating ring (705), wherein the first rotating ring (705) is rotatably connected to one end of the conical roller (6) and is in communication with the first rotating ring (705), the heat flow pipe (704) is in communication with the outer wall of the first rotating ring (705), the inner wall of the heat flow pipe (704) is fixedly connected with the mounting frame (702), the fan blade (703) is rotatably connected to the mounting frame (702), the rotating shaft of the fan blade (703) is connected to the driven gear (701), a plurality of through holes for air flow are provided on the outer wall of the driven gear (701), and the second gear ring (502) is threadedly connected to the driven gear (701).

5. The welding and grinding equipment for main roller processing of a ring rolling machine according to claim 4, characterized in that: An inner cavity is provided between the first rotating ring (705) and the tapered roller (6), and an air inlet (601) is provided at one end of the S-shaped heat flow channel (603), and the air inlet (601) extends into the interior of the inner cavity.

6. The welding and grinding equipment for main roller processing of a ring rolling machine according to claim 5, characterized in that: The heat flow discharge assembly (9) comprises a second rotating ring (901), a retractable hose (902), a heat flow discharge pipe (903) and a valve (904); the second rotating ring (901) is rotatably connected to one end of the conical roller (6); the retractable hose (902) is plugged into the second rotating ring (901); and two heat flow discharge pipes (903) are connected on the outer wall of the retractable hose (902).

7. The welding and grinding equipment for main roller processing of a ring rolling machine according to claim 6, characterized in that: A valve (904) for flow control is installed on the outer wall of the heat flow pipe (903).

8. The welding and grinding equipment for main roller processing of a ring rolling machine according to claim 7, characterized in that: The retractable heat storage assembly (10) comprises a spring (1001), a circular heat storage block (1002) and an annular heat storage block (1003); a mounting groove is installed inside the S-shaped heat flow channel (603); the annular heat storage block (1003) is installed on the inner wall of the mounting groove; one end of the spring (1001) is connected to the inner wall of the mounting groove; and the circular heat storage block (1002) is connected to one end of the spring (1001).

9. The welding and grinding equipment for processing the main roller of a ring rolling machine according to claim 8, characterized in that: The circular heat storage block (1002) is slidably connected to the inner wall of the annular heat storage block (1003).

10. The method for using the main roller welding and grinding equipment of a ring rolling machine according to claim 9, characterized in that: The steps are as follows: Step 1: Place the rotating shaft (5) on the top arc block of the carrier (1), the first gear ring (501) contacts the driving gear (3), and the driving motor (2) and the driving gear (3) drive the rotating shaft (5) and the tapered roller (6) to rotate; Step 2: fix the hot flow air intake assembly (7), and the hot flow air intake assembly (7) rotates relative to the rotating shaft (5) and the tapered roller (6), and the second gear ring (502) drives the hot flow air intake assembly (7); Step 3: The hot air flows into the S-shaped hot air channel (603) through the hot air inlet assembly (7). The guide block (604) and the retractable heat storage assembly (10) guide the hot air flow while slowing down the flow speed of the hot air flow, thereby increasing the heat exchange time. In step 4, the hot air flows through the hot flow channel (602) to the hot flow discharge component (9), and the hot flow discharge component (9) adds heat to the welding to prevent the outer wall of the welded cone roller (6) from cooling rapidly and causing cracks.

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