Heat treatment device for stainless steel welded pipe production

Abstract

The invention relates to the technical field of metal processing, in particular to a heat treatment device for stainless steel welded pipe production. The power assembly comprises two supporting seats, one side of one supporting seat is fixedly connected with a motor, and the output shaft end of the motor is fixedly connected with a rotating shaft; the rotating assembly comprises a cross rotating wheel, the four tail ends of the cross rotating wheel are fixedly connected with fixing discs, and a plurality of movable grooves completely penetrating through the fixing discs are formed in the fixing discs; and the supporting assembly comprises a plurality of supporting rods. According to the heat treatment device for stainless steel welded pipe production, the inner wall of a pipe is supported through a plurality of ceramic supporting rods and filler strips, so that the pipe is supported through the supporting rods surrounding a circle when the strength of the pipe is reduced when the pipe is heated, deformation of the pipe is prevented, and the diameter of the supporting rods surrounding the circle is changed by rotating an internal thread ring; and therefore, the pipe fitting is suitable for pipes with different diameters, and the application range is widened.

Description

Technical Field

[0001] The invention relates to the technical field of metal processing, in particular to a heat treatment device for producing stainless steel welded pipes. Background Art

[0002] Stainless steel welded pipes are used in range pipes and are often used in municipal engineering, gas or liquid transportation, and pipeline protection. The heat treatment of stainless steel pipes is to change their physical and mechanical properties, change internal stress, and obtain better performance.

[0003] When heat treating thin-walled and long-length pipes, the strength of the pipes themselves is weakened during the heat treatment process. As a result, the traditional horizontal heating furnace will cause local deformation of the pipes when the pipes are taken out of the furnace. The pipes need to be corrected afterwards, which increases the processing process. Summary of the invention

[0004] The purpose of the present invention is to provide a heat treatment device for the production of stainless steel welded pipes, so as to solve the problem that the traditional horizontal heating furnace proposed in the above background technology will cause local deformation of the pipe when the pipe is taken out of the furnace, and then the pipe needs to be corrected, thereby increasing the processing flow. To achieve the above purpose, the present invention provides the following technical solutions: A heat treatment device for the production of stainless steel welded pipes, including a base;

[0005] A power assembly, the power assembly comprising two support seats, one side of one of the support seats is fixedly connected to a motor, and an output shaft end of the motor is fixedly connected to a rotating shaft;

[0006] A rotating assembly, the rotating assembly comprising a cross wheel, the four ends of the cross wheel are fixedly connected to a fixed disk, and the fixed disk is provided with a plurality of movable slots that completely penetrate the fixed disk;

[0007] A support assembly, the support assembly comprising a plurality of support rods, one side of each support rod is hinged with two connecting rods, and both opposite sides of the support rod are fixedly connected with a blocking rod;

[0008] An adjustment assembly, the adjustment assembly comprising an adjustment shaft, a first connecting ring is fixedly sleeved on the side surface of the adjustment shaft, a second connecting ring is slidably sleeved on the side surface of the adjustment shaft, an internal threaded ring is movably connected to a section of the adjustment shaft with threads, a sleeve is fixedly connected to one side of the internal threaded ring and the other end of the sleeve is in contact with the second connecting ring;

[0009] A connecting component, the connecting component includes an electromagnetic induction coil, the two ends of the electromagnetic induction coil are respectively overlapped with an electric sheet, the inner part of the electric sheet is movably sleeved with a fixing rod, the side surface of the fixing rod is fixedly sleeved with a blocking sheet, the side of the blocking sheet close to the electric sheet is fixedly connected with a first blocking column, the side of the electric sheet close to the blocking sheet is fixedly connected with a second blocking column, and the side surface of the fixing rod is sleeved with a retaining spring.

[0010] Further preferably, the bottom of the support seat is fixedly connected to both sides of the top of the support seat, and the rotating shaft completely passes through the two support seats and is rotatably connected.

[0011] Further preferably, the interior of the cross wheel is fixedly sleeved on the side surface of the rotating shaft, and the plurality of movable grooves are distributed in a ring array.

[0012] Further preferably, the plurality of support rods respectively penetrate the movable grooves and are movably connected, the side surface of the blocking rod abuts against one side of the fixed plate, and a cushion strip is fixedly connected to one side of the support rod away from the connecting rod.

[0013] Further preferably, two handles for rotating the internal threaded ring are fixedly connected to the side surface of the internal threaded ring, the aperture of the sleeve is larger than the diameter of the adjusting shaft, hinge shafts are respectively fixedly connected to the multiple grooves on the side surface of the first connecting ring and the hinge shafts are hinged to the connecting rod, the side surface of the second connecting ring has the same hinge shaft as that on the first connecting ring, a limiting block is fixedly connected to the annular inner wall of the second connecting ring, a spring is movably connected to the side of the first connecting ring opposite to the second connecting ring and the spring is sleeved on the adjusting shaft, and a limiting groove for limiting the second connecting ring is opened on the side surface of the adjusting shaft and the limiting block is slidably connected in the limiting groove.

[0014] Further preferably, a plurality of reinforcing ribs are fixedly connected to one side of the fixed disk and the reinforcing ribs are fixedly connected to the electromagnetic induction coil, and an electromagnetic induction heater body is fixedly connected to one side of the top of the base, the two electric sheets are electrically connected to the two ends of the electromagnetic induction coil, respectively, and the two electric sheets are also electrically connected to the two electrodes of the electromagnetic induction heater body, the retaining spring is located between the baffle and the electric sheet and the two pins of the retaining spring are respectively abutted against the first baffle column and the second baffle column, and under the action of the retaining spring, the two electric sheets are deflected with the fixed rod fixed to the electromagnetic induction heater body as the center of the circle, and their bottoms are close to each other without contact, so that they are in a V shape, and when the two ends of the electromagnetic induction coil are in contact with the two electric sheets, under the action of the retaining spring, the two electric sheets are in close contact with the two ends of the electromagnetic induction coil under the action of the retaining spring, thereby ensuring the connectivity of the circuit.

[0015] Further preferably, a pipe is provided inside the electromagnetic induction coil and the inner wall of the pipe is in contact with a plurality of circular pads, a plurality of exhaust slots for ventilation are provided inside the base, a fan group for air cooling the pipe is connected inside the exhaust slot, and a main control box for controlling the electromagnetic induction heater body and the motor is fixedly connected to one side of the top of the base.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the present invention, the inner wall of the pipe is propped up by multiple support rods and pads made of ceramic material so that when the strength of the pipe is reduced by heat, the pipe is supported by the support rods surrounding the circle to prevent it from deformation, and the diameter of the circle surrounded by the support rods is changed by rotating the internal threaded ring, so as to adapt to pipes of different diameters, thereby improving the scope of application.

[0018] In the present invention, the cross wheel is driven to rotate by a motor, so that the pipe enters the cooling pool formed in the base after being heated and is cooled by the fan group, and the pipe originally located at the top is rotated to a horizontal position so that the electromagnetic induction coil is electrically connected to the two electric sheets and the pipe is heated, and personnel can replace the pipe moving upward from the cooling pool, so that heating, cooling and loading and unloading of the pipe can be performed synchronously, thereby improving work efficiency.

[0019] In the present invention, the entire pipe is placed within the range of the electromagnetic induction coil so that the entire pipe is heated at the same time and is cooled synchronously when entering the cooling pool, so that the entire pipe is heated and cooled evenly, ensuring that the entire pipe expands synchronously when heated or contracts when cooled, thereby improving the effect of heat treatment, reducing the possibility of local deformation, reducing concentricity deviation, and improving the quality of the finished pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the explosion structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the electromagnetic induction coil and the reinforcing ribs of the present invention;

[0023] Figure 4 This is a schematic diagram of the exploded structure of the support assembly and the adjustment assembly of the present invention;

[0024] Figure 5 It is a schematic diagram of the enlarged structure of the support assembly and the adjustment assembly of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the rotating assembly and the power assembly of the present invention;

[0026] Figure 7 It is a schematic diagram of the cross-sectional structure of the present invention;

[0027] Figure 8 It is a schematic diagram of a partial cross-section enlarged structure of the present invention;

[0028] Fig. 9 It is a schematic diagram of a partial top view of the structure of the present invention.

[0029] In the figure: 1, base; 2, power assembly; 3, rotating assembly; 4, supporting assembly; 5, adjusting assembly; 6, connecting assembly; 7, main control box; 8, exhaust slot; 9, fan assembly; 10, pipe; 201, supporting seat; 202, rotating shaft; 203, motor; 301, cross wheel; 302, fixing plate; 303, movable slot; 401, supporting rod; 402, connecting rod; 403, blocking rod; 404, pad; 501, first connecting ring ; 502, hinge shaft; 503, second connecting ring; 504, limit block; 505, spring; 506, sleeve; 507, internal thread ring; 508, handle; 509, adjustment shaft; 510, limit groove; 601, reinforcing rib; 602, electromagnetic induction coil; 603, fixing rod; 604, baffle; 605, first baffle column; 606, retaining spring; 607, second baffle column; 608, electric sheet; 609, electromagnetic induction heater body. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 technical personnel in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-Figure 9 , the present invention provides a technical solution: a heat treatment device for producing stainless steel welded pipes, comprising a base 1;

[0032] The power assembly 2 includes two support seats 201, one side of one support seat 201 is fixedly connected to a motor 203, and the output shaft end of the motor 203 is fixedly connected to a rotating shaft 202;

[0033] The rotating assembly 3 includes a cross wheel 301, four ends of the cross wheel 301 are fixedly connected to a fixed plate 302, and a plurality of movable slots 303 that completely penetrate the fixed plate 302 are formed inside the fixed plate 302;

[0034] Support assembly 4, support assembly 4 comprises a plurality of support rods 401, one side of each support rod 401 is hinged with two connecting rods 402, and both opposite sides of the support rod 401 are fixedly connected with blocking rods 403;

[0035] The adjusting assembly 5 comprises an adjusting shaft 509, a first connecting ring 501 is fixedly sleeved on the side surface of the adjusting shaft 509, a second connecting ring 503 is slidably sleeved on the side surface of the adjusting shaft 509, an internal threaded ring 507 is movably connected to a threaded section of the adjusting shaft 509, a sleeve 506 is fixedly connected to one side of the internal threaded ring 507, and the other end of the sleeve 506 is in contact with the second connecting ring 503;

[0036] The connecting component 6 comprises an electromagnetic induction coil 602, and the two ends of the electromagnetic induction coil 602 are respectively overlapped with an electric sheet 608, the inner part of the electric sheet 608 is movably sleeved with a fixing rod 603, the side surface of the fixing rod 603 is fixedly sleeved with a blocking sheet 604, the side of the blocking sheet 604 close to the electric sheet 608 is fixedly connected with a first blocking column 605, the side of the electric sheet 608 close to the blocking sheet 604 is fixedly connected with a second blocking column 607, and the side surface of the fixing rod 603 is sleeved with a retaining spring 606.

[0037] In this embodiment, Figure 1 , Figure 2 and Figure 7 As shown, the bottom of the support base 201 is fixedly connected to both sides of the top of the support base 201, and the rotating shaft 202 completely penetrates the two support bases 201 and is rotatably connected.

[0038] In this embodiment, Figure 2 , Figure 6 and Figure 7 As shown, the interior of the cross wheel 301 is fixedly sleeved on the side surface of the rotating shaft 202, and a plurality of movable grooves 303 are distributed in a ring array.

[0039] In this embodiment, Figure 4 , Figure 5 and Figure 8 As shown, a plurality of support rods 401 respectively penetrate the movable grooves 303 and are movably connected, a side surface of the blocking rod 403 abuts against one side of the fixed plate 302 , and a cushion strip 404 is fixedly connected to one side of the support rod 401 away from the connecting rod 402 .

[0040] In this embodiment, Figure 4 , Figure 5 and Figure 8As shown, two handles 508 for rotating the internal threaded ring 507 are fixedly connected to the side surface of the internal threaded ring 507, the aperture of the sleeve 506 is larger than the diameter of the adjusting shaft 509, the hinge shafts 502 are fixedly connected to the multiple grooves on the side surface of the first connecting ring 501, and the hinge shafts 502 are hinged to the connecting rod 402, the side surface of the second connecting ring 503 has the same hinge shaft 502 as that on the first connecting ring 501, and a limiting block 504 is fixedly connected to the annular inner wall of the second connecting ring 503, a spring 505 is movably connected to the side of the first connecting ring 501 opposite to the second connecting ring 503, and the spring 505 is sleeved on the adjusting shaft 509, and a limiting groove 510 for limiting the second connecting ring 503 is opened on the side surface of the adjusting shaft 509, and the limiting block 504 is slidably connected in the limiting groove 510.

[0041] In this embodiment, Fig. 9As shown, a plurality of reinforcing ribs 601 are fixedly connected to one side of the fixed disk 302, and the reinforcing ribs 601 are fixedly connected to the electromagnetic induction coil 602, and an electromagnetic induction heater body 609 is fixedly connected to one side of the top of the base 1, two electric sheets 608 are electrically connected to the two ends of the electromagnetic induction coil 602, respectively, and the two electric sheets 608 are also electrically connected to the two electrodes of the electromagnetic induction heater body 609, and the retaining spring 606 is located between the retaining sheet 604 and the electric sheet 608, and the two pins of the retaining spring 606 are respectively abutted against the first retaining column 605 and the second retaining column 607, and the two electric sheets 608 act on the retaining spring 606 to fix the fixing rod 609 on the electromagnetic induction heater body 609. 3 is the center of the circle for deflection, and the bottoms thereof are close to each other but not in contact, so as to form a V shape. When the two ends of the electromagnetic induction coil 602 are in contact with the two electric sheets 608, the two electric sheets 608 are in close contact with the two ends of the electromagnetic induction coil 602 under the force of the retaining spring 606, so as to ensure the connectivity of the circuit. When in use, the four pipes 10 are first pre-installed into the electromagnetic induction coil 602 and sleeved in the support structure surrounded by a plurality of pads 404 in a circle. Then, the operator rotates the handle 508 so that the internal threaded ring 507 rotates on the adjusting shaft 509 through the thread, and then the sleeve 506 pushes the second connecting ring 503 to slide. The second connecting ring 503 overcomes the force of the spring 505 and moves in the direction of the first connecting ring 501, and the blocking rod 403 on the support rod 401 abuts against one side of the fixed plate 302, so that the second connecting ring 503 changes the angle of the connecting rod 402 when moving, so that multiple support rods 401 spread out from the center of the circle to the surroundings until the pad 404 abuts against the inner wall of the pipe 10, and then the electromagnetic induction heater body 609 and the fan group 9 are started through the control switch on the side of the main control box 7, and then the output shaft end of the motor 203 is controlled to rotate through the main control box 7, and the two ends of the electromagnetic induction coil 602 are electrically overlapped with the two electric sheets 608 respectively, and the motor is stopped at this time. 203 is running, and the electromagnetic induction coil 602 is energized at this time, so that the electromagnetic induction coil 602 heats the pipe 10. When the heating is completed, the motor 203 is started again to rotate the cross wheel 301 ninety degrees, so that the pipe 10 being heated moves downward and enters the cooling pool in the base 1, and is air-cooled by multiple fan groups 9. After it drops to a suitable temperature, the motor 203 is started again to transmit the cooled pipe 10 upward another ninety degrees. At this time, the personnel reverse the handle 508, remove the heat-treated pipe 10, and replace it with a new pipe that needs to be heat-treated. The above content is repeated to fix, heat, cool, and load and unload the pipe 10.

[0042] In this embodiment, Figure 1 , Figure 2 and Figure 7As shown, a tube 10 is provided inside the electromagnetic induction coil 602 and the inner wall of the tube 10 is in contact with a plurality of circular pads 404, a plurality of exhaust slots 8 for ventilation are provided inside the base 1, a fan group 9 for air cooling the tube 10 is sleeved inside the exhaust slot 8, and a main control box 7 for controlling the electromagnetic induction heater body 609 and the motor 203 is fixedly connected to one side of the top of the base 1.

[0043] The use method and advantages of the present invention: When the heat treatment device for producing stainless steel welded pipe is used, the working process is as follows:

[0044] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown, when in use, firstly, four tubes 10 are pre-installed into the electromagnetic induction coil 602 and sleeved in the support structure surrounded by multiple pads 404 in a circle, and then the operator rotates the handle 508 to make the internal threaded ring 507 rotate on the adjusting shaft 509 through the thread, and then the sleeve 506 pushes the second connecting ring 503 to slide, so that the second connecting ring 503 overcomes the force of the spring 505 and moves in the direction of the first connecting ring 501, and the blocking rod 403 on the support rod 401 abuts against one side of the fixed disk 302, so that the second connecting ring 503 changes the angle of the connecting rod 402 when moving, so that the multiple support rods 401 spread from the center of the circle to the surroundings, until the pads 404 abut against the inner wall of the tube 10, and then the electromagnetic induction heater body 609 and the fan group 9 are started through the control switch on one side of the main control box 7, and then through The main control box 7 controls the output shaft end of the motor 203 to rotate, and allows the two ends of the electromagnetic induction coil 602 to be electrically connected to the two electric sheets 608 respectively. At this time, the operation of the motor 203 is stopped, and the electromagnetic induction coil 602 is energized, so that the electromagnetic induction coil 602 heats the pipe 10. When the heating is completed, the motor 203 is started again to rotate the cross wheel 301 ninety degrees, so that the heated pipe 10 moves downward and enters the cooling pool in the base 1, and is air-cooled by multiple fan groups 9. After it drops to a suitable temperature, the motor 203 is started again to make the cooled pipe 10 move upward another ninety degrees. At this time, the personnel reverse the handle 508, remove the heat-treated pipe 10, and replace it with a new pipe that needs to be heat-treated. Repeat the above content to fix, heat, cool, and load and unload the pipe 10.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A heat treatment device for producing stainless steel welded pipes, characterized in that: comprising a base (1); A power assembly (2), the power assembly (2) comprising two support seats (201), one side of one of the support seats (201) being fixedly connected to a motor (203), and an output shaft end of the motor (203) being fixedly connected to a rotating shaft (202); A rotating assembly (3), the rotating assembly (3) comprising a cross-shaped rotating wheel (301), the four ends of the cross-shaped rotating wheel (301) are fixedly connected to a fixed disk (302), and the fixed disk (302) is provided with a plurality of movable grooves (303) that completely penetrate the fixed disk (302); A support assembly (4), the support assembly (4) comprising a plurality of support rods (401), two connecting rods (402) being hinged on one side of the support rods (401), and blocking rods (403) being fixedly connected on opposite sides of the support rods (401); An adjustment component (5), the adjustment component (5) comprising an adjustment shaft (509), a first connecting ring (501) being fixedly sleeved on the side surface of the adjustment shaft (509), a second connecting ring (503) being slidably sleeved on the side surface of the adjustment shaft (509), an internal threaded ring (507) being movably connected to a threaded section of the adjustment shaft (509), a sleeve (506) being fixedly connected to one side of the internal threaded ring (507), and the other end of the sleeve (506) being in contact with the second connecting ring (503); A connection component (6), the connection component (6) comprising an electromagnetic induction coil (602), the two ends of the electromagnetic induction coil (602) being overlapped with an electric sheet (608), the interior of the electric sheet (608) being movably sleeved with a fixing rod (603), the side surface of the fixing rod (603) being fixedly sleeved with a blocking sheet (604), a side of the blocking sheet (604) close to the electric sheet (608) being fixedly connected with a first blocking column (605), a side of the electric sheet (608) close to the blocking sheet (604) being fixedly connected with a second blocking column (607), and a side surface of the fixing rod (603) being sleeved with a retaining spring (606).

2. A heat treatment device for producing stainless steel welded pipe according to claim 1, characterized in that: The bottom of the support seat (201) is fixedly connected to the two sides of the top of the support seat (201), and the rotating shaft (202) completely penetrates the two support seats (201) and is rotatably connected.

3. A heat treatment device for producing stainless steel welded pipe according to claim 1, characterized in that: The interior of the cross-shaped rotating wheel (301) is fixedly sleeved on the side surface of the rotating shaft (202), and the plurality of movable grooves (303) are distributed in a ring array.

4. A heat treatment device for producing stainless steel welded pipe according to claim 1, characterized in that: The plurality of support rods (401) respectively penetrate the movable grooves (303) and are movably connected, the side surface of the blocking rod (403) abuts against one side of the fixed plate (302), and a cushion strip (404) is fixedly connected to one side of the support rod (401) away from the connecting rod (402).

5. The heat treatment device for producing stainless steel welded pipe according to claim 1, characterized in that: Two handles (508) for rotating the internally threaded ring (507) are fixedly connected to the side surface of the internally threaded ring (507); the aperture of the sleeve (506) is larger than the diameter of the adjusting shaft (509); hinge shafts (502) are fixedly connected to the multiple grooves on the side surface of the first connecting ring (501) and the hinge shafts (502) are hinged to the connecting rod (402); the side surface of the second connecting ring (503) has the same hinge shaft (502) as that on the first connecting ring (501); 502), a limiting block (504) is fixedly connected to the annular inner wall of the second connecting ring (503), a spring (505) is movably connected to the side of the first connecting ring (501) opposite to the second connecting ring (503), and the spring (505) is sleeved on the adjusting shaft (509), and a limiting groove (510) for limiting the second connecting ring (503) is opened on the side surface of the adjusting shaft (509), and the limiting block (504) is slidably connected in the limiting groove (510).

6. A heat treatment device for producing stainless steel welded pipe according to claim 1, characterized in that: A plurality of reinforcing ribs (601) are fixedly connected to one side of the fixed disk (302), and the reinforcing ribs (601) are fixedly connected to the electromagnetic induction coil (602); an electromagnetic induction heater body (609) is fixedly connected to one side of the top of the base (1); the two electric sheets (608) are electrically connected to the two ends of the electromagnetic induction coil (602), respectively; the two electric sheets (608) are also electrically connected to the two electrodes of the electromagnetic induction heater body (609); the retaining spring (606) is located between the retaining sheet (604) and the electric sheet (608), and the two pins of the retaining spring (606) are respectively in contact with the first retaining column (605) and the second retaining column (607).

7. A heat treatment device for producing stainless steel welded pipe according to claim 1, characterized in that: The electromagnetic induction coil (602) is provided with a tube (10) inside, and the inner wall of the tube (10) is in contact with a plurality of circular pads (404); the base (1) is provided with a plurality of exhaust slots (8) for ventilation; the exhaust slots (8) are sleeved with a fan group (9) for air cooling the tube (10); and a main control box (7) for controlling the electromagnetic induction heater body (609) and the motor (203) is fixedly connected to one side of the top of the base (1).

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