Heat treatment device for reducing roller end jump

Abstract

The utility model discloses a heat treatment device for reducing roller end jump, which comprises an outer cylinder, a plurality of supporting legs are fixed at the bottom of the outer cylinder, a feeding hopper is fixed at the top of the outer cylinder, and two heating mechanisms are arranged in the outer cylinder. According to the heat treatment device capable of reducing roller end jump, a heating mechanism is arranged, a roller is poured into a feeding hopper and then leaks downwards from a leakage opening to enter an upper cylinder, then an upper hydraulic rod is started, the upper hydraulic rod pushes an upper moving cylinder to move, the upper moving cylinder drives a circular plate, a connecting block and a circular ring to move downwards, and the roller end jump is reduced. The upper portion of the cylinder is sealed through the circular plate, the sealing ring and the circular ring, meanwhile, the circular plate, the sealing ring and the circular ring make contact with the roller, the upper heating mechanism heats the roller and then conducts air cooling, then the roller enters the lower heating mechanism, and the lower heating mechanism conducts high-temperature heat treatment on the roller. And the occurrence of end jumping can be reduced when the roller is subjected to high-temperature heat treatment.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat treatment device technical field, concretely is a kind of heat treatment device for reducing roller end jump. BACKGROUND

[0002] Bearing roller is the element that bears load when bearing operates, and has important influence on the working performance and service life of bearing. They are the weakest parts in roller bearings, and the manufacturing quality directly affects the rotation accuracy, vibration, noise and flexibility of bearing. Bearing roller has various types, including tapered roller, cylindrical roller, spherical roller, spiral roller and various needle roller, etc. The shapes and sizes of these rollers are different, and they are suitable for different types of bearing requirements. The manufacturing process of bearing roller includes multiple steps, such as blank forming, deburring, heat treatment, grinding and superfinishing, etc.

[0003] However, when the roller is cold-formed, the force of the material and the vehicle type is superimposed, so that there is a large stress on the surface of the roller before heat treatment, causing the tapered roller and cylindrical roller to expand and deform after heat treatment, and the end jump changes. Especially, the problem of end jump change of tapered roller is particularly serious, and sometimes the end jump exceeds the processing requirements and causes scrap. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a heat treatment device for reducing roller end jump, which solves the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model realizes the following technical scheme: a heat treatment device for reducing roller end jump, comprising an outer cylinder, a plurality of supporting legs are fixed at the bottom of the outer cylinder, a feeding hopper is fixed at the top of the outer cylinder, two heating mechanisms are arranged inside the outer cylinder, the heating mechanism comprises a cylinder, an electric heating plate is fixed at the bottom of the cylinder, a plurality of fixing blocks are fixed on the outer side wall of the cylinder, the other end of the fixing block is fixedly connected with the inner side wall of the outer cylinder, a circular plate is arranged above the cylinder, a circular ring is arranged on the outer side of the circular plate, two connecting blocks are fixed between the top of the circular ring and the circular plate, a connecting rod is slidably connected in the connecting block, a sealing ring is fixed at the bottom end of the connecting rod, a stop block is fixed at the top of the connecting rod, a moving cylinder is rotatably connected at the top of the circular plate, an electric motor is fixed in the moving cylinder, the output shaft of the electric motor is fixedly connected with the top of the circular plate, two connecting plates are fixed on the outer side wall of the moving cylinder below, two hydraulic rods are respectively fixed on the inner side wall of the outer cylinder and the top of the outer cylinder, the output shaft of the upper hydraulic rod penetrates through the outer cylinder and the top of the upper moving cylinder and is fixedly connected, the output shaft of the lower two hydraulic rods is fixedly connected with the top of the connecting plate, and a discharge pipe is fixed at the bottom of the outer cylinder.

[0006] Preferably, the inside of the cylinder is provided with a discharging mechanism, the outer side wall of the cylinder is provided with a plurality of openings, the inside of the opening is provided with a plurality of baffles, and the inside of the limiting groove is provided with a limiting block.

[0007] Preferably, the inside of the baffle is fixed with a plurality of iron bars, and the outer side wall of the ring is fixed with a magnetic ring.

[0008] Preferably, the inside of the outer cylinder is fixed with a guide hopper.

[0009] Preferably, the bottom of the feeding hopper and the bottom of the guide hopper are provided with a plurality of leakage openings.

[0010] Preferably, the sealing ring, the bottom end of the feeding hopper and the bottom end of the guide hopper are located in the inside of the cylinder. Beneficial effects

[0011] The utility model provides a kind of heat treatment device for reducing roller end jump.Compared with prior art, it has the following beneficial effects:

[0012] 1, the heat treatment device for reducing roller end jump, by setting heating mechanism, roller is poured into feeding hopper, then roller is leaked into the inside of upper cylinder from leakage opening, then upper hydraulic rod is started, and upper hydraulic rod pushes upper moving cylinder to move, and upper moving cylinder moves with circular plate, connecting block and ring, and circular plate, sealing ring and ring seal the upper of cylinder, while circular plate, sealing ring and ring contact with roller, electric heating plate is started, and electric heating plate heats roller, motor is started, and circular plate, sealing ring and ring rotate with roller, so that roller is heated evenly, and upper heating mechanism heats roller at 450-500 DEG C for 40-60 minutes and air cooling, after air cooling, roller enters lower heating mechanism, and lower heating mechanism carries out high-temperature heat treatment to roller, so that roller is first heat treated at lower temperature, and the strength of roller is strengthened, and after air cooling, high-temperature heat treatment is carried out again, so that roller can reduce end jump when being heat treated at high temperature.

[0013] 2, the heat treatment device for reducing roller end jump, by setting discharging mechanism, after roller heat treatment, hydraulic rod is retracted, and hydraulic rod moves upwards with circular plate, connecting block and ring, ring moves upwards with magnetic ring, magnetic ring adsorbs iron bar with baffle and moves upwards, so that opening is opened, and roller is rolled down from heating plate, so that discharging is completed. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure schematic diagram of the utility model.

[0015] Figure 2 is a structure schematic view of the outer cylinder in the utility model.

[0016] Figure 3 is a sectional structure schematic view of the cylinder and the ring in the utility model.

[0017] Figure 4 is a structure schematic view of the cylinder in the utility model.

[0018] In the drawing: 1, support leg; 2, discharge pipe; 3, outer cylinder; 4, feeding hopper; 5, hydraulic rod; 6, heating mechanism; 7, blanking mechanism; 8, connecting plate; 9, moving cylinder; 10, guide hopper; 11, baffle; 12, fixed block; 13, heating plate; 14, ring; 15, iron bar; 16, motor; 17, round plate; 18, stop block; 19, connecting block; 20, connecting rod; 21, sealing ring; 22, leakage; 23, limiting block; 24, magnetic ring; 25, cylinder; 26, opening; 27, limiting groove. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the utility model.

[0020] Please refer to Figures 1-4The utility model provides a technical scheme: a kind of heat treatment device for reducing roller end jump, including outer tube 3, the bottom of outer tube 3 is fixed with multiple support legs 1, the top of outer tube 3 is fixed with feed hopper 4, the inside of outer tube 3 is equipped with two heating mechanisms 6, heating mechanism 6 includes cylinder 25, the bottom of cylinder 25 is fixed electric heating plate 13, the outside wall of cylinder 25 is fixed with multiple fixed blocks 12, another end of fixed block 12 and the inside wall of outer tube 3 are fixedly connected, the top of cylinder 25 is equipped with round plate 17, the outside of round plate 17 is equipped with ring 14, two connecting blocks 19 are fixed between the top of ring 14 and round plate 17, connecting block 19 is slidably connected with connecting rod 20 in its inside, the bottom end of connecting rod 20 is fixed with sealing ring 21, the top of connecting rod 20 is fixed with stop block 18, the top of round plate 17 is rotatably connected with moving cylinder 9, motor 16 is fixed in the inside of moving cylinder 9, the output shaft of motor 16 is fixedly connected with the top of round plate 17, the outside wall of the lower moving cylinder 9 is fixed with two connecting plates 8, the inside wall of outer tube 3 and the top of outer tube 3 are respectively fixed with two and one hydraulic rod 5, the output shaft of upper hydraulic rod 5 passes through outer tube 3 and the top of upper moving cylinder 9 and is fixedly connected, the output shaft of lower two hydraulic rods 5 and the top of connecting plate 8 are fixedly connected, the bottom of outer tube 3 is fixed with discharge pipe 2, so that the roller can be first heat-treated at lower temperature, the strength of the roller is strengthened, after air cooling, high-temperature heat treatment is carried out again, so that the occurrence of end jump of the roller during high-temperature heat treatment is reduced, the inside of outer tube 3 is fixed with guide hopper 10, so that the roller can accurately enter the inside of lower heating mechanism 6, multiple leak holes 22 are formed in the bottom of feed hopper 4 and the bottom of guide hopper 10, so that the roller can leak out, sealing ring 21, the bottom end of feed hopper 4 and the bottom end of guide hopper 10 are all located in the inside of cylinder 25, so that the roller is placed and will not leak out of the outside of cylinder 25.

[0021] Further, the inside of cylinder 25 is equipped with discharging mechanism 7, discharging mechanism 7 includes multiple baffles 11, multiple openings 26 are formed in the outside wall of cylinder 25, baffle 11 is located in the inside of opening 26, two limiting grooves 27 are formed in the inside of opening 26, limiting block 23 is arranged in the inside of limiting groove 27, limiting block 23 and baffle 11 are fixedly connected, so that the roller can be discharged, multiple iron bars 15 are fixed in the inside of baffle 11, magnetic ring 24 is fixed on the outside wall of ring 14, so that ring 14 rises with baffle 11.

[0022] When working, the roller is poured into the feeding hopper 4, and then the roller falls from the hopper 22 into the interior of the upper cylinder 25, and then the upper hydraulic rod 5 is started, the upper hydraulic rod 5 pushes the upper moving cylinder 9 to move, the upper moving cylinder 9 moves downward with the round plate 17, the connecting block 19 and the ring 14, the round plate 17, the sealing ring 21 and the ring 14 seal the upper part of the cylinder 25, and at the same time, the round plate 17, the sealing ring 21 and the ring 14 are in contact with the roller, the electric heating plate 13 is started, the electric heating plate 13 heats the roller, the motor 16 is started, the round plate 17, the sealing ring 21 and the ring 14 rotate with the roller, so that the roller is uniformly heated, the upper heating mechanism 6 heats the roller at 450-500℃ for 40-60 minutes and then air cools, after air cooling, the upper hydraulic rod 5 is retracted, the hydraulic rod 5 moves upward with the round plate 17, the connecting block 19 and the ring 14, the ring 14 moves upward with the magnetic ring 24, the magnetic ring 24 is attracted to the iron bar 15, the baffle 11 moves upward with the limiting block 23, the limiting block 23 moves to the upper part of the limiting groove 27, and then the limiting groove 27 limits the movement of the limiting block 23 and the baffle 11, the ring 14 continues to rise with the magnetic ring 24, the magnetic ring 24 is separated from the iron bar 15, the baffle 11 falls back to the original position due to gravity, and then the roller falls into the guide hopper 10, and then the roller enters the lower heating mechanism 6, and the above operation is repeated, the lower heating mechanism 6 performs high-temperature heat treatment on the roller, so that the roller is first subjected to low-temperature heat treatment to strengthen the strength of the roller, and then air-cooled, and then subjected to high-temperature heat treatment again, so that the occurrence of end jump of the roller during high-temperature heat treatment is reduced.

[0023] Meanwhile, the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

[0024] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations. By the sentence "including a limited element, it does not exclude the existence of another identical element in the process, method, article or equipment including the element".

[0025] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat treatment device for reducing roll end jump, comprising an outer cylinder (3), characterized in that: The bottom of the outer cylinder (3) is fixed with a plurality of supporting legs (1), the top of the outer cylinder (3) is fixed with a feeding hopper (4), the inside of the outer cylinder (3) is provided with two heating mechanisms (6), the heating mechanism (6) comprises a cylinder (25), the bottom of the cylinder (25) is fixed with an electric heating plate (13), the outer side wall of the cylinder (25) is fixed with a plurality of fixed blocks (12), the other end of the fixed block (12) is fixedly connected with the inner side wall of the outer cylinder (3), the upper side of the cylinder (25) is provided with a circular plate (17), the outer side of the circular plate (17) is provided with a circular ring (14), the top of the circular ring (14) and the circular plate (17) are fixedly connected with two connecting blocks (19), the inside of the connecting block (19) is slidably connected with a connecting rod (20), the bottom end of the connecting rod (20) is fixed with a sealing ring (21), the top of the connecting rod (20) is fixed with a stop block (18), the top of the circular plate (17) is rotatably connected with a moving cylinder (9), the inside of the moving cylinder (9) is fixed with a motor (16), the output shaft of the motor (16) is fixedly connected with the top of the circular plate (17), the outer side wall of the moving cylinder (9) below is fixedly connected with two connecting plates (8), the inner side wall of the outer cylinder (3) and the top of the outer cylinder (3) are respectively fixed with two and one hydraulic rods (5), the output shaft of the hydraulic rod (5) above penetrates through the outer cylinder (3) and is fixedly connected with the top of the moving cylinder (9) above, the output shaft of the two hydraulic rods (5) below is fixedly connected with the top of the connecting plate (8), and the bottom of the outer cylinder (3) is fixed with a discharge pipe (2).

2. The heat treating apparatus of claim 1, wherein: The inside of the cylinder (25) is provided with a discharging mechanism (7), the discharging mechanism (7) comprises a plurality of baffles (11), a plurality of openings (26) are formed in the outer side wall of the cylinder (25), the baffle (11) is located in the opening (26), the inside of the opening (26) is provided with two limiting grooves (27), the limiting groove (27) is provided with a limiting block (23) in the inside, and the limiting block (23) and the baffle (11) are fixedly connected.

3. The apparatus of claim 2, wherein: A plurality of iron bars (15) are fixed in the baffle (11), and a magnetic ring (24) is fixed on the outer side wall of the circular ring (14).

4. The apparatus of claim 3, wherein: The inside of the outer cylinder (3) is fixed with a guide hopper (10).

5. The apparatus of claim 4, wherein: A plurality of leakage openings (22) are formed in the bottom of the feeding hopper (4) and the bottom of the guide hopper (10).

6. The apparatus of claim 5, wherein: The sealing ring (21), the bottom end of the feeding hopper (4) and the bottom end of the guide hopper (10) are all located in the inside of the cylinder (25).

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