Medium-frequency heat treatment device for steel pipe

Abstract

The utility model discloses a steel pipe medium-frequency heat treatment device, which belongs to the technical field of steel pipe heat treatment and comprises a box body, a plurality of springs are fixedly connected to the top surface of the box body, a supporting table is fixedly connected to the top ends of the springs, a medium-frequency heat processor is arranged on the top surface of the supporting table, and a cleaning mechanism is arranged on the supporting table. The bottom face of the supporting table is fixedly connected with a lifting base, and the bottom end of the lifting base is movably connected to an inner cavity of the box in a sleeved mode. According to the lifting device, the two-way lead screw is in threaded fit with the two lower supporting bases to drive the lower supporting bases to move, and the height of the lifting base is adjusted through sliding between the second sliding inclined faces on the top faces of the lower supporting bases and the first sliding inclined faces on the bottom face of the lifting base; and the weight of the supporting table above the lifting seat and the weight of the intermediate-frequency heat processor are directly conducted to the box body through the lower supporting seat, the situation that a bidirectional lead screw bears the weight of the intermediate-frequency heat processor is avoided, and practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe heat treatment, in particular to a steel pipe medium frequency heat treatment device. Background Art

[0002] Medium frequency heat treatment is widely used for surface quenching of gears, shafts, crankshafts, cams, rollers and other workpieces to improve their wear resistance and fatigue fracture resistance.

[0003] After searching, the utility model patent with announcement number CN215757510U discloses a medium-frequency heat treatment production line for cold-drawn materials, including a box body, a support seat is fixedly welded on the box body, the interior of the support seat is connected to a threaded rod by a thread, the bottom of the threaded rod is in contact with a connecting plate, the connecting plate is slidably connected to the inner surface of the support seat, a universal wheel is installed at the bottom of the connecting plate, a first spring is sleeved on the outside of the threaded rod, and an electric motor is installed on the box body; this patent constitutes a height fine-adjustment mechanism for the medium-frequency heat treatment device by designing components such as a box body, a motor, a bidirectional lead screw, a moving block, a hinged rod, a lifting seat, a guide rod, a limit block, a second spring, a support table, and a shaft tail fixing seat, so that the medium-frequency heat treatment device can better match the height of other equipment on the production line, so that the production line has better fluidity.

[0004] However, the above patent still has the following shortcomings: although the height of the lifting seat, the support platform and the medium frequency heat treatment device can be adjusted by the cooperation between the bidirectional screw and the moving block, the weight of the medium frequency heat treatment device is mainly borne by the bidirectional screw, which is under great pressure and prone to deformation; and there are iron filings and other debris on the surface of the pipes entering the medium frequency heat treatment device, which will affect the heat treatment quality of the pipes and cause the debris to fall into the medium frequency heat treatment device and be difficult to remove. For this reason, we propose a medium frequency heat treatment device for steel pipes. Utility Model Content

[0005] In view of the problems existing in the prior art, the utility model aims to provide a medium frequency heat treatment device for steel pipes.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions:

[0007] The top of the two springs is fixedly connected to the support platform, the top of the two springs is fixedly connected to the support platform, the top of the support platform is provided with a medium frequency heat treatment device, the support platform is provided with a cleaning mechanism, the bottom surface of the support platform is fixedly connected to a lifting seat, the bottom end of the lifting seat is movably sleeved to the inner cavity of the box, and first sliding slopes are respectively provided on both sides of the bottom end of the lifting seat, the inner cavity of the box is rotatably connected to a two-way screw rod, the outer sides of the two ends of the two-way screw rod are respectively threadedly sleeved with a lower support seat, and the side parts of the top ends of the two lower support seats are provided with a second sliding slope, the top surface of the second sliding slope is in contact with the bottom surface of the first sliding slope, and the first motor is fixedly installed on the outer side of the box, the output shaft of the first motor is connected to the end of the two-way screw rod, and the bottom surface of the lower support seat is in contact with the bottom surface of the inner cavity of the box.

[0008] As a preferred solution of the utility model, the cleaning mechanism includes a collecting box fixedly sleeved on the end of the supporting platform, a sealing door is hinged on the outer side of the collecting box, a chip suction bucket is fixedly sleeved on the top of the collecting box, a filter screen is fixedly sleeved on the inner wall of the collecting box, an air pump is fixedly installed on the side of the collecting box, the input end of the air pump extends to the inner cavity of the collecting box, a rotating seat is provided on the top of the collecting box, a swivel is rotatably connected to the inner side of the swivel seat, a plurality of heat-resistant brushes are fixedly connected to one end of the swivel, an outer side of the other end of the swivel is fixedly sleeved with an outer gear ring, a second motor is fixedly installed on the top of the swivel seat, a gear is fixedly sleeved on the output shaft of the second motor, and the gear and the outer gear ring are meshed with each other.

[0009] As a preferred solution of the utility model, two mounting seats are fixedly connected on both sides of the box body, an electric hydraulic rod is fixedly installed on the top of the mounting seat, and the output end of the electric hydraulic rod extends to the bottom of the mounting seat and is fixedly connected to a moving wheel.

[0010] As a preferred solution of the utility model, two limit rods are fixedly sleeved on the inner cavity of the box body, and the two limit rods are movably sleeved on the lower support seat respectively.

[0011] As a preferred solution of the utility model, a avoidance groove is provided at the bottom end of the lifting seat, and the position of the avoidance groove is matched with the positions of the limit rod and the bidirectional screw rod.

[0012] As a preferred solution of the utility model, a plurality of sliding rods are fixedly connected to the bottom surface of the support platform, and the bottom ends of the plurality of sliding rods are movably sleeved into the inner cavity of the box body and fixedly connected to the limiting block.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] (1) In the present invention, the threaded cooperation between the bidirectional screw and the two lower support seats is utilized to drive the lower support seats to move, and the height of the lifting seat is adjusted by sliding between the second sliding slope of the top surface of the lower support seat and the first sliding slope of the bottom surface of the lifting seat, and the weight of the support platform and the intermediate frequency heat treatment device above the lifting seat is directly transmitted to the box body through the lower support seat, thereby avoiding the use of the bidirectional screw to bear the weight of the intermediate frequency heat treatment device.

[0015] (2) In the utility model, before the steel pipe is inserted into the medium frequency heat treatment device for heat treatment, the second motor is used to drive the gear to rotate, and the meshing transmission between the gear and the outer gear ring drives the heat-resistant brush to rotate, and the heat-resistant brush is used to brush the outer side of the steel pipe to clean the dust or iron filings on the outer side of the steel pipe. In addition, the cleaned dust and iron filings are sucked into the inner cavity of the collection box by the suction force of the chip suction bucket, and the dust or iron filings are trapped and stored in the inner cavity of the collection box by the filter net, thereby realizing the function of cleaning the outer side of the heat-treated steel pipe, and having good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0018] Figure 3 It is a cross-sectional schematic diagram of the box body of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the collection box of the utility model;

[0020] Figure 5 It is a cross-sectional schematic diagram of the collection box of the utility model.

[0021] Description of the numbers in the figure:

[0022] 1. Box body; 2. Spring; 3. Support table; 4. Medium frequency heat treatment device; 5. Cleaning mechanism; 6. Bidirectional screw; 7. Lower support seat; 8. Second sliding slope; 9. Lifting seat; 10. First sliding slope; 11. First motor; 12. Avoidance groove; 13. Limit rod; 14. Collection box; 15. Sealing door; 16. Filter; 17. Vacuum pump; 18. Chip suction bucket; 19. Rotating seat; 20. Rotating ring; 21. External gear ring; 22. Second motor; 23. Gear; 24. Heat-resistant brush; 25. Mounting seat; 26. Electric hydraulic rod; 27. Moving wheel; 28. Sliding rod; 29. ​​Limit block. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] Example:

[0027] See also Figure 1-5 , a medium-frequency heat treatment device for steel pipes comprises a box body 1, a plurality of springs 2 are fixedly connected to the top surface of the box body 1, a support platform 3 is fixedly connected to the top of the plurality of springs 2, a medium-frequency heat treatment device 4 is arranged on the top surface of the support platform 3, a cleaning mechanism 5 is arranged on the support platform 3, a lifting seat 9 is fixedly connected to the bottom surface of the support platform 3, the bottom end of the lifting seat 9 is movably sleeved to the inner cavity of the box body 1, and first sliding slopes 10 are respectively arranged on both sides of the bottom end of the lifting seat 9, a bidirectional screw rod 6 is rotatably connected to the inner cavity of the box body 1, and lower support seats 7 are respectively threadedly sleeved on the outer sides of the two ends of the bidirectional screw rod 6, and second sliding slopes 8 are arranged on the side parts of the top ends of the two lower support seats 7, and the top surface of the second sliding slope 8 is fitted with the bottom surface of the first sliding slope 10, a first motor 11 is fixedly installed on the outer side of the box body 1, the output shaft of the first motor 11 is connected to the end of the bidirectional screw rod 6, and the bottom surface of the lower support seat 7 is fitted with the bottom surface of the inner cavity of the box body 1.

[0028] For details, please refer to Figure 1 , Figure 4 and Figure 5The cleaning mechanism 5 includes a collecting box 14 fixedly sleeved on the end of the supporting platform 3, a sealing door 15 is hinged on the outer side of the collecting box 14, a debris suction bucket 18 is fixedly sleeved on the top of the collecting box 14, a filter screen 16 is fixedly sleeved on the inner wall of the collecting box 14, an air pump 17 is fixedly installed on the side of the collecting box 14, the input end of the air pump 17 extends to the inner cavity of the collecting box 14, a rotating seat 19 is provided on the top of the collecting box 14, a rotating ring 20 is rotatably connected to the inner side of the rotating seat 19, a plurality of heat-resistant brushes 24 are fixedly connected to one end of the rotating ring 20, an outer gear ring 21 is fixedly sleeved on the outer side of the other end of the rotating ring 20, a second motor 22 is fixedly installed on the top of the rotating seat 19, a gear 23 is fixedly sleeved on the output shaft of the second motor 22, and the gear 23 and the outer gear ring 21 are meshed with each other.

[0029] In this embodiment, the rotating ring 20 is flush with the feed port of the medium frequency heat treatment device 4 , and the heat-resistant brush 24 is located directly above the chip suction bucket 18 , ensuring that the waste chips cleaned by the heat-resistant brush 24 are collected by the chip suction bucket 18 .

[0030] For details, please refer to Figure 1 Two mounting seats 25 are fixedly connected to both sides of the box body 1, and an electric hydraulic rod 26 is fixedly installed on the top of the mounting seat 25. The output end of the electric hydraulic rod 26 extends to the bottom of the mounting seat 25 and is fixedly connected to a moving wheel 27.

[0031] In this embodiment, the moving wheel 27 is used to drive the device to move.

[0032] For details, please refer to Figure 2 Two limit rods 13 are fixedly sleeved in the inner cavity of the box body 1, and the two limit rods 13 are movably sleeved with the lower support seat 7 respectively.

[0033] In this embodiment, the lower support seat 7 is limited by the cooperation between the limiting rod 13 and the lower support seat 7, so that the lower support seat 7 can only move along the axial direction of the bidirectional screw rod 6.

[0034] For details, please refer to Figure 3 The bottom end of the lifting seat 9 is provided with an avoidance groove 12 , and the position of the avoidance groove 12 is matched with the position of the limit rod 13 and the bidirectional screw rod 6 .

[0035] In this embodiment, the avoidance groove 12 ensures that the lifting seat 9 will not be blocked by the bidirectional screw rod 6 and the limit rod 13 when moving up and down.

[0036] For details, please refer to Figure 2 The bottom surface of the support platform 3 is fixedly connected with a plurality of slide bars 28 , and the bottom ends of the plurality of slide bars 28 are movably sleeved into the inner cavity of the box body 1 and fixedly connected with the limiting block 29 .

[0037] In this embodiment, the support platform 3 and the intermediate frequency heat treatment device 4 are limited by the cooperation between the slide rod 28 and the box body 1, so that the intermediate frequency heat treatment device 4 can only move in the vertical direction.

[0038] Working principle: When in use, first start the electric hydraulic rod 26 to drive the moving wheel 27 to move downward, use the moving wheel 27, the electric hydraulic rod 26 and the mounting seat 25 to support the box 1, and use the moving wheel 27 to drive the intermediate frequency heat processor 4 to move. After the intermediate frequency heat processor 4 moves, start the electric hydraulic rod 26 to drive the moving wheel 27 to move upward, so that the bottom surface of the box 1 fits the ground, and then start the first motor 11 to drive the bidirectional screw rod 6 to rotate, and use the threaded cooperation between the bidirectional screw rod 6 and the lower support seat 7 to drive the two lower support seats 7 to move closer to or away from each other, and use the sliding between the second sliding slope 8 on the top surface of the lower support seat 7 and the first sliding slope 10 on the bottom surface of the lifting seat 9 to adjust the height of the lifting seat 9, thereby adjusting the height of the support platform 3 and the intermediate frequency heat processor 4, and then When the steel pipe is heat treated by the medium frequency heat treatment device 4, the steel pipe to be treated is inserted into the rotating ring 20, and the steel pipe passing through the rotating ring 20 enters the feeding port of the medium frequency heat treatment device 4. Finally, when the steel pipe moves in the rotating ring 20, the vacuum pump 17 is started to evacuate air into the inner cavity of the collection box 14, and at the same time, the chip suction bucket 18 generates suction. In addition, the second motor 22 is started to drive the gear 23 to rotate, and the rotating ring 20 and the heat-resistant brush 24 are driven to rotate through the meshing transmission between the gear 23 and the outer gear ring 21. The heat-resistant brush 24 is used to brush the outside of the steel pipe, so as to clean up the dust or iron filings on the outside of the steel pipe. The cleaned dust and iron filings are sucked into the inner cavity of the collection box 14 by the suction force of the chip suction bucket 18, and the dust or iron filings are intercepted and stored in the inner cavity of the collection box 14 by the filter screen 16.

[0039] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be included in the protection scope of the utility model.

Claims

1. A medium frequency heat treatment device for steel pipes, comprising a housing (1), characterized in that: The top surface of the box body (1) is fixedly connected to a plurality of springs (2), the top ends of the plurality of springs (2) are fixedly connected to a support platform (3), the top surface of the support platform (3) is provided with a medium frequency heat treatment device (4), the support platform (3) is provided with a cleaning mechanism (5), the bottom surface of the support platform (3) is fixedly connected to a lifting seat (9), the bottom end of the lifting seat (9) is movably sleeved to the inner cavity of the box body (1), the two sides of the bottom end of the lifting seat (9) are respectively provided with a first sliding inclined surface (10), the inner cavity of the box body (1) is rotatable A bidirectional screw rod (6) is dynamically connected, and lower support seats (7) are respectively threadedly sleeved on the outer sides of the two ends of the bidirectional screw rod (6), and the sides of the top ends of the two lower support seats (7) are provided with second sliding inclined surfaces (8), and the top surface of the second sliding inclined surface (8) is in contact with the bottom surface of the first sliding inclined surface (10), and a first motor (11) is fixedly installed on the outer side of the box body (1), and the output shaft of the first motor (11) is connected to the end of the bidirectional screw rod (6), and the bottom surface of the lower support seat (7) is in contact with the bottom surface of the inner cavity of the box body (1).

2. A medium frequency heat treatment device for steel pipe according to claim 1, characterized in that: The cleaning mechanism (5) comprises a collection box (14) fixedly sleeved on the end of the support platform (3); a sealing door (15) is hingedly connected to the outer side of the collection box (14); a dust suction bucket (18) is fixedly sleeved on the top of the collection box (14); a filter screen (16) is fixedly sleeved on the inner wall of the collection box (14); an air pump (17) is fixedly installed on the side of the collection box (14); the input end of the air pump (17) extends to the inner cavity of the collection box (14); and the collection box (14) A rotating seat (19) is arranged at the top, a rotating ring (20) is rotatably connected to the inner side of the rotating seat (19), a plurality of heat-resistant brushes (24) are fixedly connected to one end of the rotating ring (20), an outer gear ring (21) is fixedly sleeved on the outer side of the other end of the rotating ring (20), a second motor (22) is fixedly installed on the top of the rotating seat (19), an output shaft of the second motor (22) is fixedly sleeved with a gear (23), and the gear (23) and the outer gear ring (21) are meshed with each other.

3. A medium frequency heat treatment device for steel pipe according to claim 1, characterized in that: Two mounting seats (25) are fixedly connected to the two sides of the box body (1), and an electric hydraulic rod (26) is fixedly installed on the top of the mounting seat (25). The output end of the electric hydraulic rod (26) extends to the bottom of the mounting seat (25) and is fixedly connected to a moving wheel (27).

4. A medium frequency heat treatment device for steel pipe according to claim 1, characterized in that: Two limiting rods (13) are fixedly sleeved in the inner cavity of the box body (1), and the two limiting rods (13) are movably sleeved with the lower support seat (7) respectively.

5. A medium frequency heat treatment device for steel pipe according to claim 4, characterized in that: The bottom end of the lifting seat (9) is provided with an avoidance groove (12), and the position of the avoidance groove (12) is matched with the positions of the limit rod (13) and the bidirectional screw rod (6).

6. A medium frequency heat treatment device for steel pipe according to claim 1, characterized in that: The bottom surface of the support platform (3) is fixedly connected to a plurality of sliding rods (28), and the bottom ends of the plurality of sliding rods (28) are movably sleeved into the inner cavity of the box body (1) and fixedly connected to a limiting block (29).

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