Steel ball quenching furnace

Abstract

The utility model relates to the technical field of steel ball quenching, in particular to a steel ball quenching furnace. According to the technical scheme, the device comprises a heating furnace, an annealing furnace, a heat preservation furnace and a connecting frame, the heating furnace, the annealing furnace, the heat preservation furnace and the connecting frame are fixed end to end and form an annular structure, sliding rails are fixed to the upper ends of the heating furnace, the annealing furnace, the heat preservation furnace and the connecting frame, a set of track plates are slidably connected to the sliding rails, and the track plates are distributed at equal intervals; a lifting rope is fixed to the bottom, the bottom of the lifting rope is located in the quenching furnace and provided with a lifting basket, a feeding and discharging opening is formed in the front side of the connecting frame, a mounting cover is clamped to the upper end of the heat preservation furnace, and a sliding rail of the heat preservation furnace is fixed to the upper end of the mounting cover. The whole quenching furnace is arranged to be of an annular structure, the effect of line production is achieved, the machining efficiency is improved, the installation cover on the heat preservation furnace is replaced according to the heat preservation time of steel balls, and it is guaranteed that the heat preservation time is changed under the condition that normal line production is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of steel ball quenching, in particular to a steel ball quenching furnace. Background Art

[0002] Through the steel ball quenching process, the hardness and wear resistance of steel balls can be significantly improved, making them suitable for various application scenarios requiring high strength and wear resistance, such as abrasives, bearings, automotive parts, etc. The parameters of the quenching process (such as quenching temperature, cooling medium, holding time, etc.) will affect the final performance of the steel balls, so it is necessary to adjust according to specific material and workpiece requirements.

[0003] During the quenching process, the steel balls need to be heated, held, and cooled and annealed, so they need to be transported to different chambers in sequence. In this case, if continuous assembly line operation cannot be carried out, the work efficiency will be slow. In the case of continuous operation, the heating and cooling of the steel balls can often be completed quickly, while for the holding of the steel balls, depending on the size of the steel balls and different processing technologies, the required time is different. In this case, if a long holding time is required while the heating and cooling times remain unchanged, the steel balls will continuously accumulate in the holding chamber, affecting the normal assembly line processing efficiency. Therefore, it is necessary to design a quenching furnace that can ensure free conditions for the residence time in the holding chamber under different circumstances. Summary of the Utility Model

[0004] The purpose of the utility model is to propose a steel ball quenching furnace for the problems existing in the background art.

[0005] The technical solution of the utility model: A steel ball quenching furnace includes a heating furnace, an annealing furnace, a holding furnace, and a connecting frame. The heating furnace, annealing furnace, holding furnace, and connecting frame are fixed end to end and form an annular structure. Slide rails are fixed on the upper ends of the heating furnace, annealing furnace, holding furnace, and connecting frame. A group of track plates are slidably connected to the slide rails. The track plates are equidistantly distributed, and suspension ropes are fixed to the bottoms. The bottoms of the suspension ropes are located inside the quenching furnace, and hanging baskets are installed. A loading and unloading opening is provided on the front side of the connecting frame. An installation cover is snap-fitted to the upper end of the holding furnace. The slide rail of the holding furnace is fixed to the upper end of the installation cover and consists of a docking track and a variable track.

[0006] Preferably, the four corners of the installation cover are fixed to the upper end of the annealing furnace through fixing bolts. The variable track is divided into a straight track and a curved track.

[0007] Preferably, angle support plates are fixed to the upper end inner wall of the holding furnace, and the upper ends of the angle support plates abut against the bottom of the installation cover to increase the stability after the installation cover is installed.

[0008] Preferably, a hook is fixed at the bottom of the suspension rope, and a connecting ring is fixed at the upper end of the hanging basket. The hook passes through the connecting ring, and the hanging basket can be quickly removed from the suspension rope for loading or unloading of steel balls.

[0009] Preferably, a traveling motor is fixed on the track plate, and a driving gear is fixed at the output end. A driving groove is formed on the outer side wall of the slide rail, and a driving rack is fixed. The driving gear is located in the driving groove and meshes with the driving rack.

[0010] Preferably, heating equipment is installed in the heating furnace, and water cooling equipment is installed in the annealing furnace.

[0011] Compared with the prior art, the utility model has the following beneficial technical effects: The whole quenching furnace is set in a ring structure to achieve the effect of flow operation, improve the processing efficiency, and replace the installation cover on the heat preservation furnace according to the heat preservation time of the steel balls, ensuring that the heat preservation time can be changed without affecting the normal flow operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of the overall external structure of the utility model;

[0013] Figure 2 is a schematic top view of the installation cover replacement of the utility model;

[0014] Figure 3 is a schematic front sectional view of the utility model;

[0015] Figure 4 is a schematic diagram of the internal structure of the heat preservation furnace of the utility model.

[0016] Reference numerals: 1, heating furnace; 2, annealing furnace; 3, heat preservation furnace; 31, installation cover; 32, fixing bolt; 33, angle brace plate; 4, connecting frame; 41, loading and unloading opening; 5, slide rail; 51, docking track; 52, variable track; 6, hanging basket; 61, connecting ring; 7, track plate; 71, traveling motor; 72, suspension rope. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following further describes the technical solutions of the present utility model in conjunction with the drawings and specific embodiments.

[0018] Embodiment

[0019] As Figures 1-4As shown in the figure, a steel ball quenching furnace proposed by the present utility model includes a heating furnace 1, an annealing furnace 2, a heat preservation furnace 3 and a connecting frame 4. The heating furnace 1, the annealing furnace 2, the heat preservation furnace 3 and the connecting frame 4 are fixedly connected end to end to form an annular structure. Slide rails 5 are fixedly installed at the upper ends of the heating furnace 1, the annealing furnace 2, the heat preservation furnace 3 and the connecting frame 4. A group of track plates 7 are slidably connected to the slide rails 5. The track plates 7 are equally spaced and a suspension rope 72 is fixed to the bottom. The bottom of the suspension rope 72 is located inside the quenching furnace and a hanging basket 6 is installed. A loading and unloading opening 41 is provided on the front side of the connecting frame 4. An installation cover 31 is snap-fitted to the upper end of the heat preservation furnace 3. The slide rail 5 of the heat preservation furnace 3 is fixed to the upper end of the installation cover 31 and is composed of a docking track 51 and a variable track 52. The four corners of the installation cover are fixed to the upper end of the annealing furnace 2 by fixing bolts 32. The variable track 52 is divided into a straight track and a curved track. Angle support plates 33 are fixedly installed at the upper end of the inner wall of the heat preservation furnace 3, and the upper ends of the angle support plates 33 abut against the bottom of the installation cover 31.

[0020] A hook is fixed to the bottom of the suspension rope 72, a connecting ring 61 is fixed to the upper end of the hanging basket 6, the hook passes through the connecting ring 61. A traveling motor 71 is fixed to the track plate 7, and a driving gear is fixed to the output end. A driving groove is provided on the outer side wall of the slide rail 5 and a driving tooth plate is fixed. The driving gear is located in the driving groove and meshes with the driving tooth plate. Heating equipment is installed in the heating furnace 1 and water cooling equipment is installed in the annealing furnace 2.

[0021] In this embodiment, first, the entire device is connected to an external power supply. Then, driven by the traveling motor 71, the track plate 7 slides on the slide rail 5, thereby driving the hanging basket 6 to move between the heating furnace 1, the annealing furnace 2, the heat preservation furnace 3 and the connecting frame 4. During this process, when the hanging basket 6 is inside the connecting frame 4, steel balls can be loaded into the hanging basket 6 through the loading and unloading opening 41. When entering the heating furnace 1, the steel balls are heated by the heating equipment, then enter the heat preservation furnace 3 for heat preservation, then enter the annealing furnace 2 for water cooling, and finally return to the connecting frame 4. The cooled steel balls are taken out and the steel balls to be quenched are reloaded, achieving the effect of assembly line operation, thereby improving the processing efficiency. At the same time, when quenching different steel balls, the installation cover 31 can be replaced according to process requirements, and then the slide rail 5 on the heat preservation furnace 3 can be replaced. According to requirements, the variable track 52 can be replaced with a straight track or a curved track. The straight track will shorten the movement track of the hanging basket 6 in the heat preservation furnace 3, thereby shortening the heat preservation time. On the contrary, the curved track can increase the heat preservation time. Therefore, without changing the sliding speed of the track plate 7, the heat preservation time can be adjusted without affecting the normal assembly line operation.

[0022] The above specific embodiments are only several preferred embodiments of the present utility model. Based on the technical solution of the present utility model and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A steel ball quenching furnace, comprising a heating furnace (1), an annealing furnace (2), a heat preservation furnace (3) and a connecting frame (4), characterized in that: The heating furnace (1), annealing furnace (2), heat preservation furnace (3) and connecting frame (4) are fixed end to end and form an annular structure. Slide rails (5) are fixed to the upper ends of the heating furnace (1), annealing furnace (2), heat preservation furnace (3) and connecting frame (4). A group of track plates (7) are slidably connected to the slide rails (5). The track plates (7) are equidistantly distributed, and suspension ropes (72) are fixed to the bottoms thereof. The bottoms of the suspension ropes (72) are located inside the quenching furnace, and hanging baskets (6) are installed. A loading and unloading opening (41) is formed in the front side of the connecting frame (4). An installation cover (31) is snap-fitted to the upper end of the heat preservation furnace (3). The slide rails (5) of the heat preservation furnace (3) are fixed to the upper end of the installation cover (31) and are composed of docking tracks (51) and variable tracks (52).

2. The steel ball quenching furnace according to claim 1, characterized in that, Four corners of the installation cover (31) are fixed to the upper end of the annealing furnace (2) by fixing bolts (32). The variable track (52) is divided into a straight track and a curved track.

3. A steel ball quenching furnace according to claim 1, characterized in that, Angle support plates (33) are fixed to the upper end of the inner wall of the heat preservation furnace (3), and the upper ends of the angle support plates (33) abut against the bottom of the installation cover (31).

4. A steel ball quenching furnace according to claim 1, characterized in that, A hook is fixed to the bottom of the suspension rope (72), and a connecting ring (61) is fixed to the upper end of the hanging basket (6). The hook passes through the connecting ring (61).

5. A steel ball quenching furnace according to claim 1, characterized in that, A traveling motor (71) is fixed to the track plate (7), and a driving gear is fixed to the output end thereof. A driving groove is formed in the outer side wall of the slide rail (5), and a driving tooth plate is fixed thereto. The driving gear is located in the driving groove and meshes with the driving tooth plate.

6. The austenitizing furnace for steel balls according to claim 1, wherein, Heating equipment is installed in the heating furnace (1), and water cooling equipment is installed in the annealing furnace (2).

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