A seamless steel pipe heat treatment equipment

Abstract

The present invention belongs to the technical field of steel pipe processing devices, and in particular to a seamless steel pipe heat treatment equipment. In response to the existing technical problems, the following solution is proposed, which includes a chassis, the bottom of the chassis is movably sleeved with a second rotating shaft 8 coaxially arranged therewith, the outer ring of the second rotating shaft 8 is fixedly connected with a second adjustment structure distributed in an array along its central axis, the outer ring of the second adjustment structure is provided with a first adjustment mechanism, the outer ring of the first adjustment mechanism is provided with a first connecting structure, the other ends of several groups of the first connecting structures are connected to the same group of first fixed sleeves of an annular structure coaxially arranged with the chassis, the outer ring of the first fixed sleeve is fixedly connected with a rack of an annular structure, the outer ring of the rack is engaged with a gear, and the inner ring of the gear is fixed with the first rotating shaft; the present invention can adjust the size of the heating chamber according to the size of the inner diameter and outer diameter of the steel pipe, avoid heat waste, and can quickly preheat the heating chamber.

Description

Technical Field

[0001] The present invention relates to the technical field of steel pipe processing equipment, in particular to seamless steel pipe heat treatment equipment. Background Art

[0002] Seamless steel pipe heat treatment equipment is used to heat treat seamless steel pipes. Steel pipes made from a single piece of metal with no seams on the surface are called seamless steel pipes. According to the production method, seamless pipes are divided into hot-rolled pipes, cold-rolled pipes, cold-drawn pipes, extruded pipes, and jacking pipes.

[0003] In the process of processing seamless steel pipes, heat treatment equipment is often required for heat treatment. However, ordinary heat treatment equipment is of fixed size. If the heat treatment equipment is too small, it will be difficult to apply to the processing of oversized seamless steel pipes. If the heat treatment equipment is too large and needs to process thinner seamless steel pipes, the complete heating of the entire heat treatment equipment will waste more unnecessary resources or cause energy waste. Summary of the Invention

[0004] The present invention provides a seamless steel pipe heat treatment device that solves the problems raised in the above background technology.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A seamless steel pipe heat treatment equipment includes a chassis, the bottom of the chassis is movably sleeved with a second rotating shaft 8 coaxially arranged therewith, the outer ring of the second rotating shaft 8 is fixedly connected to a second adjustment structure distributed in an array along its central axis, the outer ring of the second adjustment structure is provided with a first adjustment mechanism, the outer ring of the first adjustment mechanism is provided with a first connecting structure, the other ends of several groups of the first connecting structures are connected to the same group of first fixed sleeves of an annular structure coaxially arranged with the chassis, the outer ring of the first fixed sleeve is fixedly connected to a rack of an annular structure, the outer ring of the rack is engaged with a gear, the inner ring of the gear is fixedly connected to the first rotating shaft, and the end of the first rotating shaft extending out of the bottom of the chassis is fixed with a second motor.

[0007] Preferably, the first adjustment mechanism includes a first adjustment plate with an arc structure distributed in an array along the central axis of the chassis, and the first adjustment mechanism also includes a second adjustment plate with an arc structure distributed in an array along the central axis of the chassis, the bottom of the second adjustment plate is slidably connected to the bottom of the chassis, the number of the second adjustment plates is the same as the first adjustment plates, and the second adjustment plate is located on the outer ring of the first adjustment plate, the first adjustment plate and the second adjustment plate are staggered, the outer ring of the first adjustment plate is provided with a first slide groove with an arc structure coaxially arranged therewith, the inner ring of the second adjustment plate is fixed with two groups of first sliders symmetrically distributed along its central axis, and the interior of the first slide groove is slidably sleeved with the two adjacent groups of first sliders.

[0008] Preferably, the first connecting structure includes a first fixed block fixed to the outer ring of the first adjustment plate, the other end of the first fixed block is rotatably connected to the first connecting rod, the other end of the first connecting rod is rotatably connected to the second connecting rod, the other end of the second connecting rod is rotatably connected to the second fixed block, the other end of the second fixed block is fixed to the inner ring of the first fixed sleeve, and the bottom of the first fixed sleeve is slidably connected to the bottom of the chassis.

[0009] Preferably, the second adjustment structure includes a fixing ring fixed to the outer ring of the second rotating shaft 8, the outer ring of the fixing ring is fixed with a third fixing block distributed in an array along its central axis, the other end of the third fixing block is rotatably connected to a third connecting rod, the other end of the third connecting rod is rotatably connected to a fourth connecting rod, the other end of the fourth connecting rod is rotatably connected to a third adjustment plate of an arc structure coaxially arranged with the second rotating shaft 8, the outer ring of the second rotating shaft 8 is provided with a fourth adjustment plate of an arc structure distributed in an array along its central axis, and the number of the third adjustment plate and the fourth adjustment plate is the same, and the third adjustment plate and the fourth adjustment plate are staggered.

[0010] Preferably, the outer ring of the third adjustment plate is provided with a second sliding groove coaxially distributed therewith, and the inner ring of the third adjustment plate is fixed with two groups of second sliding blocks symmetrically distributed along its central axis, and the second sliding groove is slidably connected with the two adjacent groups of second sliding blocks.

[0011] Preferably, a bearing structure is provided inside the chassis, and the bearing structure includes a support plate with an arc-shaped structure fixed to the outer ring of the fourth adjustment plate, and the support plate is coaxially arranged with the second rotating shaft 8, and a sliding structure is provided between two adjacent groups of support plates, and a first fixing rod with an arc-shaped structure coaxially arranged therewith is fixed on one side of one of the two connected groups of support plates, and the inner ring of the first fixing rod is slidably connected to a second fixing rod with an arc-shaped structure coaxially arranged therewith, and the other end of the second fixing rod is fixed to the side wall of the other group of support plates.

[0012] Preferably, a buffer structure is fixed to the bottom of the support plate, and the buffer structure includes a first buffer rod slidably connected to the bottom of the support plate, a second buffer rod with a hollow structure is fixed to the bottom of the first buffer rod, and a piston is fixed to one end of the first buffer rod extending into the interior of the second buffer rod, which is slidably sleeved with the interior of the first buffer rod, and the bottom of the piston is fixed to the bottom inner wall of the chassis, and the bottoms of adjacent pistons are fixedly connected by a pipe with an arc structure.

[0013] Preferably, the top outer wall of the chassis is hinged via a cover, and the first motor is fixed to one end of the second rotating shaft 8 extending out of the bottom of the chassis.

[0014] In the present invention, the heating chamber composed of the first adjusting plate, the second adjusting plate, the third adjusting plate and the fourth adjusting plate is adjusted by the first adjusting structure and the second adjusting structure. The size of the heating chamber can be adjusted according to the inner diameter and the outer diameter of the steel pipe, thereby avoiding heat waste, saving energy and being environmentally friendly, and being able to quickly preheat the heating chamber, while improving the heat treatment efficiency of the steel pipe.

[0015] The present invention loads and unloads steel pipes through the first buffer rod, the second buffer rod, the support plate, the piston and the pipeline, which is convenient and quick, reduces the labor intensity of workers, and improves work efficiency and increases economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a seamless steel pipe heat treatment equipment proposed by the present invention.

[0017] Figure 2 This is a schematic structural diagram of the third fixing block and the third connecting rod proposed in the present invention.

[0018] Figure 3 This is a schematic structural diagram of the gear and rack proposed in the present invention.

[0019] Figure 4 This is a schematic structural diagram of the first motor and cover proposed in the present invention.

[0020] Figure 5 This is a schematic structural diagram of the first connecting rod and the second connecting rod proposed in the present invention.

[0021] Figure 6 This is a schematic structural diagram of the first buffer rod and the second buffer rod proposed in the present invention.

[0022] Numbers in the figure: 1. chassis; 2. first adjusting mechanism; 201. first adjusting plate; 202. second adjusting plate; 3. first connecting structure; 301. first fixed block; 302. first connecting rod; 303. second connecting rod; 304. second connecting block; 4. first fixed sleeve; 5. rack; 6. gear; 7. first rotating shaft; 8. second rotating shaft; 9. second adjusting structure; 901. fixing collar; 902. third fixing block; 903. third connecting rod; 904. fourth connecting rod; 905. third adjusting plate; 906. fourth adjusting plate; 10. bearing structure; 101. support plate; 102. first fixed rod; 103. second fixed rod; 11. buffer structure; 111. first buffer rod; 112. second buffer rod; 113. piston; 114. pipe; 12. cover; 13. first motor. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] Reference Figure 1-6 , a seamless steel pipe heat treatment equipment, including a chassis 1, the bottom of the chassis 1 is movably sleeved with a second rotating shaft 8 coaxially arranged therewith, the outer ring of the second rotating shaft 8 is fixedly connected with a second adjusting structure 9 distributed in an array along its central axis, the outer ring of the second adjusting structure 9 is provided with a first adjusting mechanism 2, the outer ring of the first adjusting mechanism 2 is provided with a first connecting structure 3, the other ends of several groups of first connecting structures 3 are connected to the same group of first fixed sleeves 4 of an annular structure coaxially arranged with the chassis 1, the outer ring of the first fixed sleeve 4 is fixedly connected with a rack 5 of an annular structure, the outer ring of the rack 5 is meshed with a gear 6, the inner ring of the gear 6 is fixedly connected to the first rotating shaft 7, the first rotating shaft 7 is fixedly connected to the outer ring of the gear 6, and the first rotating shaft 7 is fixedly connected to the outer ring of the gear 6. A second motor is fixed to one end of the shaft 7 extending out from the bottom of the chassis 1; when the steel pipe is heat-treated, the internal structure is first adjusted according to the size of the inner diameter of the steel pipe. First, the first motor 13 is started, and the first motor 13 drives the second rotating shaft 8 connected thereto to rotate, and the second rotating shaft 8 drives the fixed collar 901 connected thereto to rotate, and the fixed collar 901 drives the third fixed block 902 connected thereto to rotate, and the third fixed block 902 drives the third connecting rod 903 connected thereto to rotate, and the third connecting rod 903 drives the fourth connecting rod 904 connected thereto to rotate, thereby driving the third adjusting plate 905 connected thereto to approach the second rotating shaft 8 Or it moves in the direction away from the second rotating shaft 8, so that the third adjusting plate 905 drives the fourth adjusting plate 6 connected thereto to move together, and while moving, the second slider moves along the first slider connected thereto, and after adjusting according to the inner diameter of the steel pipe, it is adjusted according to the outer diameter of the steel pipe. First, the second motor is started, and the second motor drives the first rotating shaft 7 connected thereto to rotate, and the first rotating shaft 7 drives the gear 6 connected thereto to rotate, and the gear 6 drives the rack 5 connected thereto to rotate, and the rack 5 drives the first fixed sleeve 4 connected thereto to rotate, and the first fixed sleeve 4 drives the second connecting rod 303 connected thereto to rotate, thereby pushing the connecting rod 303 connected thereto The first connecting rod 301 moves, thereby pushing the first fixed block 301 connected thereto to move along the radial direction of the chassis 1, and the first fixed block 301 drives the first adjusting plate 201 connected thereto to move, and the first adjusting plate 201 moves along the radial direction of the chassis 1, close to or away from the second rotating shaft 8, and the second adjusting plate 202 drives the first slider connected thereto to slide along the first slide groove connected to the first slider, thereby adjusting the heating chamber according to the size of the steel pipe to avoid heat waste, and at the same time can preheat the heating chamber faster, and can evenly heat the inner and outer walls of the steel pipe, so that the heat treatment effect is better and uneven heating of the steel pipe is avoided.

[0025] In this embodiment: the first adjustment mechanism 2 includes a first adjustment plate 201 with an arc structure distributed in an array along the central axis of the chassis 1, and the first adjustment mechanism 2 also includes a second adjustment plate 202 with an arc structure distributed in an array along the central axis of the chassis 1. The bottom of the second adjustment plate 202 is slidably connected to the bottom of the chassis 1. The number of the second adjustment plates 202 is the same as that of the first adjustment plates 201, and the second adjustment plates 202 are located on the outer ring of the first adjustment plate 201. The first adjustment plates 201 and the second adjustment plates 202 are staggered. The outer ring of the first adjustment plate 201 is provided with a first sliding groove with an arc structure coaxially arranged therewith. The inner ring of the second adjustment plate 202 is fixed with two groups of first sliders symmetrically distributed along its central axis. The interior of the first sliding groove is slidably engaged with the two adjacent groups of first sliders. The first fixed block 301 drives the first adjustment plate 201 connected thereto to move. The first adjustment plate 201 moves along the radial direction of the chassis 1, approaching or moving away from the second rotating shaft 8, and the second adjustment plate 202 drives the first slider connected thereto to slide along the first sliding groove connected to the first slider.

[0026] In this embodiment: the first connecting structure 3 includes a first fixed block 301 fixed to the outer ring of the first adjusting plate 201, the other end of the first fixed block 301 is rotatably connected to the first connecting rod 302, the other end of the first connecting rod 302 is rotatably connected to the second connecting rod 303, the other end of the second connecting rod 303 is rotatably connected to the second fixed block 304, the other end of the second fixed block 304 is fixed to the inner ring of the first fixing sleeve 4, and the bottom of the first fixing sleeve 4 is slidably engaged with the bottom of the chassis 1; the second motor drives the first rotating shaft 7 connected thereto to rotate, the first rotating shaft 7 drives the gear 6 connected thereto to rotate, the gear 6 drives the rack 5 connected thereto to rotate, the rack 5 drives the first fixing sleeve 4 connected thereto to rotate, the first fixing sleeve 4 drives the second connecting rod 303 connected thereto to rotate, thereby pushing the first connecting rod 301 connected thereto to move, thereby pushing the first fixed block 301 connected thereto to move along the radial direction of the chassis 1, and the first fixed block 301 drives the first adjusting plate 201 connected thereto to move.

[0027] In this embodiment: the second adjustment structure 9 includes a fixed collar 901 fixed to the outer ring of the second rotating shaft 8, the outer ring of the fixed collar 901 is fixed with a third fixed block 902 distributed in an array along its central axis, the other end of the third fixed block 902 is rotatably connected to a third connecting rod 903, the other end of the third connecting rod 903 is rotatably connected to a fourth connecting rod 904, the other end of the fourth connecting rod 904 is rotatably connected to a third adjustment plate 905 of an arc structure coaxially arranged with the second rotating shaft 8, the outer ring of the second rotating shaft 8 is provided with a fourth adjustment plate 906 of an arc structure distributed in an array along its central axis, and the number of the third adjustment plates 905 and the fourth adjustment plates 906 is the same, and the third adjustment plates 905 and the fourth adjustment plates 906 are staggered. Cloth; the first motor 13 drives the second rotating shaft 8 connected thereto to rotate, the second rotating shaft 8 drives the fixed collar 901 connected thereto to rotate, the fixed collar 901 drives the third fixed block 902 connected thereto to rotate, the third fixed block 902 drives the third connecting rod 903 connected thereto to rotate, the third connecting rod 903 drives the fourth connecting rod 904 connected thereto to rotate, thereby driving the third adjusting plate 905 connected thereto to move closer to the second rotating shaft 8 or in the direction away from the second rotating shaft 8, so that the third adjusting plate 905 drives the fourth adjusting plate 6 connected thereto to move together, and while moving, the second slider moves along the first slider connected thereto, and after adjusting according to the inner diameter of the steel pipe, it is adjusted according to the outer diameter of the steel pipe.

[0028] In this embodiment: the outer ring of the third adjustment plate 905 is provided with a second sliding groove coaxially distributed therewith, and the inner ring of the third adjustment plate 905 is fixed with two groups of second sliders symmetrically distributed along its central axis, and the second sliding groove is slidably connected to the two adjacent groups of second sliders; the third adjustment plate 905 drives the fourth adjustment plate 6 connected thereto to move together, and while moving, the second slider moves along the first slider connected thereto.

[0029] In this embodiment: a bearing structure 10 is provided inside the chassis 1, and the bearing structure 10 includes a support plate 101 with an arc structure fixed to the outer circle of the fourth adjustment plate 906, and the support plate 101 is coaxially arranged with the second rotating shaft 8, and a sliding structure is provided between two adjacent groups of support plates 101, and a first fixing rod 102 with an arc structure coaxially arranged therewith is fixed on one side of one of the two connected groups of support plates 101, and the inner circle of the first fixing rod 102 is slidably connected to a second fixing rod 103 with an arc structure coaxially arranged therewith, and the other end of the second fixing rod 103 is fixed to the side wall of the other group of support plates 101; when the steel pipe is placed on the support plate 101, the support plate 101 moves with the fourth adjustment plate 906 connected thereto, and the first fixing rod 102 connected to the support plate 101 also moves together, and the first fixing rod 102 drives the second fixing rod 103 connected thereto to move together, and the second fixing rod 103 slides along the 102 connected thereto, thereby being able to support steel pipes of different sizes.

[0030] In this embodiment, a buffer structure 11 is fixed to the bottom of the support plate 101. The buffer structure 11 includes a first buffer rod 111 that is slidably connected to the bottom of the support plate 101. A hollow second buffer rod 112 is fixed to the bottom of the first buffer rod 111. One end of the first buffer rod 111 that extends into the interior of the second buffer rod 112 is fixed with a piston 113 that is slidably sleeved with the interior of the first buffer rod 111. The bottom of the piston 113 is fixed to the bottom inner wall of the chassis 1, and the bottoms of adjacent pistons 113 are connected by an arc-shaped pipe. 114 is fixed; after the steel pipe is placed on the support plate 101, the air pump is started. The air pump extracts the gas in the second buffer rod 112 connected to it through the air pipe, and at the same time extracts the gas in the other second buffer rods 112 through the pipe 114, so that the piston 113 moves downward, and the piston 113 drives the first buffer rod 111 connected to it to move downward, thereby driving the support plate 101 connected to it to move downward, thereby sending the steel pipe into the heating chamber. The same steps are used to send the heat-treated steel pipe out of the chassis 1.

[0031] In this embodiment, the top outer wall of the chassis 1 is hinged with a hinge 14 through the cover 12 , and a first motor 13 is fixed to one end of the second shaft 8 extending out of the bottom of the chassis 1 ; the cover 12 can be opened or closed by the hinge 14 .

[0032] In this embodiment, an air pipe is fixedly connected to the bottom of one set of the second buffer rods 112 , and an end of the air pipe extending out of the bottom of the chassis 1 is fixedly connected to an air pump.

[0033] Working principle: When heat treating the steel pipe, the internal structure is first adjusted according to the size of the inner diameter of the steel pipe. First, the first motor 13 is started. The first motor 13 drives the second rotating shaft 8 connected thereto to rotate. The second rotating shaft 8 drives the fixed collar 901 connected thereto to rotate. The fixed collar 901 drives the third fixed block 902 connected thereto to rotate. The third fixed block 902 drives the third connecting rod 903 connected thereto to rotate. The third connecting rod 903 drives the fourth connecting rod 904 connected thereto to rotate, thereby driving the third adjusting plate 905 connected thereto to move close to the second rotating shaft 8 or in the direction away from the second rotating shaft 8, so that the third adjusting plate 905 drives the fourth adjusting plate 6 connected thereto to move together. While moving, the second slider moves along the first slider connected thereto. After adjusting according to the inner diameter of the steel pipe, it is adjusted according to the outer diameter of the steel pipe. First, the second motor is started. The second motor drives the third fixed block 902 connected thereto to rotate. The third fixed block 902 drives the third connecting rod 903 connected thereto to rotate. The third connecting rod 903 drives the fourth connecting rod 904 connected thereto to rotate. The first rotating shaft 7 connected to it rotates, and the first rotating shaft 7 drives the gear 6 connected to it to rotate, and the gear 6 drives the rack 5 connected to it to rotate, and the rack 5 drives the first fixed sleeve 4 connected to it to rotate, and the first fixed sleeve 4 drives the second connecting rod 303 connected to it to rotate, thereby pushing the first connecting rod 301 connected to it to move, thereby pushing the first fixed block 301 connected to it to move along the radial direction of the chassis 1, and the first fixed block 301 drives the first adjusting plate 201 connected to it to move, and the first adjusting plate 201 moves along the radial direction of the chassis 1, approaching or moving away from the second rotating shaft 8, and the second adjusting plate 202 drives the first slider connected to it to slide along the first slide groove connected to the first slider, thereby adjusting the heating chamber according to the size of the steel pipe to avoid heat waste. At the same time, the heating chamber can be preheated faster, and the inner and outer walls of the steel pipe can be evenly heated, with better heat treatment effect, avoiding uneven heating of the steel pipe.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0036] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A seamless steel pipe heat treatment device, comprising a chassis (1), characterized in that: The bottom of the chassis (1) is movably sleeved with a second rotating shaft (8) coaxially arranged therewith, the outer ring of the second rotating shaft (8) is fixedly connected with a second adjustment structure (9) distributed in an array along its central axis, the outer ring of the second adjustment structure (9) is provided with a first adjustment mechanism (2), the outer ring of the first adjustment mechanism (2) is provided with a first connecting structure (3), the other ends of several groups of the first connecting structures (3) are connected with the same group of first fixed sleeves (4) of an annular structure coaxially arranged with the chassis (1), the outer ring of the first fixed sleeve (4) is fixedly connected with a rack (5) of an annular structure, and the outer ring of the rack (5) is meshed with a gear (6), the inner ring of the gear (6) is fixed with a first rotating shaft (7), and one end of the first rotating shaft (7) extending out of the bottom of the chassis (1) is fixed with a second motor; the first adjusting mechanism (2) includes a first adjusting plate (201) with an arc structure arrayed along the central axis of the chassis (1), and the first adjusting mechanism (2) also includes a second adjusting plate (202) with an arc structure arrayed along the central axis of the chassis (1), the bottom of the second adjusting plate (202) is slidably connected to the bottom of the chassis (1), the number of the second adjusting plate (202) is the same as that of the first adjusting plate (201), and the second adjusting plate (202) is the same as that of the first adjusting plate (201). 2) is located on the outer ring of the first adjustment plate (201), the first adjustment plate (201) and the second adjustment plate (202) are staggered, the outer ring of the first adjustment plate (201) is provided with a first sliding groove of an arc structure coaxially arranged therewith, the inner ring of the second adjustment plate (202) is fixed with two groups of first sliding blocks symmetrically distributed along its central axis, and the interior of the first sliding groove is slidably sleeved with the two adjacent groups of first sliding blocks; the second adjustment structure (9) includes a fixing ring (901) fixed with the outer ring of the second rotating shaft (8), and the outer ring of the fixing ring (901) is fixed with a third fixing block ( 902), the other end of the third fixed block (902) is rotatably connected to a third connecting rod (903), the other end of the third connecting rod (903) is rotatably connected to a fourth connecting rod (904), the other end of the fourth connecting rod (904) is rotatably connected to a third adjusting plate (905) of an arc structure coaxially arranged with the second rotating shaft (8), the outer ring of the second rotating shaft (8) is provided with a fourth adjusting plate (906) of an arc structure distributed in an array along its central axis, and the number of the third adjusting plate (905) and the fourth adjusting plate (906) is the same, and the third adjusting plate (905) and the fourth adjusting plate (906) are staggered.

2. The seamless steel pipe heat treatment equipment according to claim 1, characterized in that: The first connection structure (3) includes a first fixed block (301) fixed to the outer ring of the first adjustment plate (201), the other end of the first fixed block (301) is rotatably connected to the first connecting rod (302), the other end of the first connecting rod (302) is rotatably connected to the second connecting rod (303), the other end of the second connecting rod (303) is rotatably connected to the second fixed block (304), the other end of the second fixed block (304) is fixed to the inner ring of the first fixed sleeve (4), and the bottom of the first fixed sleeve (4) is slidably connected to the bottom of the chassis (1).

3. The seamless steel pipe heat treatment equipment according to claim 1, characterized in that: The outer ring of the third adjustment plate (905) is provided with a second sliding groove coaxially distributed therewith, and the inner ring of the third adjustment plate (905) is fixed with two groups of second sliding blocks symmetrically distributed along its central axis, and the second sliding groove is slidably sleeved with the two adjacent groups of second sliding blocks.

4. The seamless steel pipe heat treatment equipment according to claim 1, characterized in that: A bearing structure (10) is provided inside the chassis (1), and the bearing structure (10) includes a support plate (101) with an arc structure fixed to the outer ring of the fourth adjustment plate (906), and the support plate (101) is coaxially arranged with the second rotating shaft (8), and a sliding structure is provided between two adjacent groups of support plates (101), and a first fixing rod (102) with an arc structure coaxially arranged with the support plate (101) is fixed on one side of one of the two connected groups of support plates (101), and the inner ring of the first fixing rod (102) is slidably connected to a second fixing rod (103) with an arc structure coaxially arranged with the support plate (101), and the other end of the second fixing rod (103) is fixed to the side wall of the other group of support plates (101).

5. The seamless steel pipe heat treatment equipment according to claim 4, characterized in that: A buffer structure (11) is fixed to the bottom of the support plate (101), and the buffer structure (11) includes a first buffer rod (111) slidably connected to the bottom of the support plate (101), a second buffer rod (112) with a hollow structure is fixed to the bottom of the first buffer rod (111), and one end of the first buffer rod (111) extending into the interior of the second buffer rod (112) is fixed with a piston (113) slidably sleeved with the interior of the first buffer rod (111), and the bottom of the piston (113) is fixed to the bottom inner wall of the chassis (1), and the bottoms of adjacent pistons (113) are fixedly connected via an arc-shaped pipe (114).

6. The seamless steel pipe heat treatment equipment according to claim 1, characterized in that: The top outer wall of the chassis (1) is hinged with a hinge (14) through a cover (12), and a first motor (13) is fixed to one end of the second rotating shaft (8) extending out of the bottom of the chassis (1).

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