Rapid air cooling device for quenched bearing steel balls

Abstract

The utility model discloses a rapid air cooling device for bearing steel balls after quenching, which comprises a base, baffles are welded at two ends of the top of the base, a porous steel ball box is placed at the center of the top of the base, jack panels are welded at two sides of a transverse symmetry axis at the front end and the rear end of the porous steel ball box, a plug board penetrates through the inner wall of each jack panel, and the top surface of a bottom plate is in sliding connection with a sliding plate. A support is welded to the center of the top of the sliding plate, a containing table is welded to the top of the support, a second rotating shaft is fixedly connected to the center of the top of the containing table, and an air blower is fixedly connected to the top of the second rotating shaft. In this way, the porous steel ball box containing the bearing steel balls is fixed, at the moment, the distance between the air blower and the porous steel ball box is about 20 cm, the sliding plate structure below the air blower can slide on the bottom plate, and therefore the distance between the air blower and the porous steel ball box can be conveniently adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of heat treatment of bearing steel balls, in particular to a device for rapid air cooling of bearing steel balls after quenching. Background Art

[0002] The heat treatment of bearing steel balls mainly includes two main steps: quenching and tempering. The purpose of quenching is to form a high-hardness, low-toughness structure on the surface of the steel ball through rapid cooling, thereby improving its hardness and wear resistance. The specific steps include heating the bearing steel ball to an appropriate temperature, then quickly immersing it in a cooling medium to cool it rapidly, and the purpose of tempering is to change the structure of the quenched steel ball through heating and cooling to improve its toughness and impact resistance.

[0003] The following problems exist: after the bearing steel balls are heated in the quenching furnace and kept warm for a certain period of time, they will be poured into the quenching oil pool. After cooling in the quenching oil pool for a certain period of time, they will be lifted from the quenching oil pool to the ground for air cooling. After the bearing steel balls are cooled to room temperature, they are quickly tempered. The time it takes for the bearing steel balls to be taken out of the quenching oil pool and cooled to room temperature is called the air cooling time. The length of the air cooling time determines the content of tempered martensite and residual austenite and the quality of the organization of the bearing steel balls after one tempering. In order to shorten the air cooling time of the bearing steel balls after quenching and being taken out of the quenching oil pool and drained, thereby further improving the organization level of the bearing steel balls, a device for rapid air cooling of bearing steel balls after quenching is proposed. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] A device for rapid air cooling of bearing steel balls after quenching, comprising a base, baffles are welded at both ends of the top of the base, a porous steel ball box is placed at the center of the top of the base, socket plates are welded on both sides of the transverse symmetry axis of the front and rear ends of the porous steel ball box, a socket plate is penetrated through the inner wall of the socket plate, a lower hopper is installed above the porous steel ball box, a bottom plate is welded to the bottom end of the outer wall on the other side of the base, a slide plate is slidably connected to the top surface of the bottom plate, a bracket is welded at the center of the top of the slide plate, a placing table is welded on the top of the bracket, a second rotating shaft is fixedly connected to the center of the top of the placing table, a blower is fixedly connected to the top of the second rotating shaft, and a quenching oil pool is welded to the outer wall on the other side of the base.

[0007] As a further description of the above technical solution: a hollow frame is welded on the outer wall of one side of the base, limiting plates are welded on both ends of the top of the hollow frame, and a cavity is opened on the inner wall of the hollow frame; by setting the limiting plate, the stability of the lifting plate during the up and down movement can be improved.

[0008] As a further description of the above technical solution: the inner walls at the other two ends of the top of the hollow frame are rotatably connected to the shaft core, the bottom of the shaft core is welded with a gear plate, the bottom center of the gear plate is fixedly connected with a first rotating shaft, and the shaft core, gear plate and first rotating shaft are each provided with two groups; by setting the first rotating shaft, the gear plate and the shaft core can rotate together.

[0009] As a further description of the above technical solution: an inner plate is fixedly connected to one side of the inner wall of the cavity, a slide bar is slidably connected to the top of the inner wall of the inner plate, a gear bar is fixedly connected to the outer wall of one side of the slide bar, both ends of the inner wall of the gear bar are meshed with one end of the outer wall of the gear plate, and pull-out plates are welded to the front and rear ends of the slide bar; by installing pull-out plates at both ends of the slide bar, the moving range of the slide bar can be limited.

[0010] As a further description of the above technical solution: the inner walls on the same side of the front and rear ends of the hollow frame are provided with sliding grooves, the outer walls of the sliding bar and the gear bar pass through the inner walls of the sliding grooves, the top of the shaft core is fixedly connected with a threaded column, the outer wall of the threaded column is threadedly connected with a threaded sleeve, the outer wall of the threaded sleeve is fixedly connected with a lifting plate, a load-bearing plate is welded on the top of the lifting plate, and both ends of the inner wall of the load-bearing plate are plugged into the outer wall of the plug plate; by setting a connection method between the threaded column and the threaded sleeve, the threaded sleeve can move up and down on the outer wall of the rotating threaded column, thereby realizing the up and down sliding of the lifting plate.

[0011] As a further description of the above technical solution: side panels are welded to the front and rear ends of the top of the base plate, and multiple groups of threaded holes are opened on the inner wall at the transverse symmetry axis of the top of the base plate, and the opposite surfaces of the side panels are slidably connected to the outer walls on both sides of the skateboard; by setting the side panels, the stability of the skateboard during sliding can be improved.

[0012] As a further description of the above technical solution: both ends of the inner wall of the skateboard are threadedly connected with long-axis bolts, the bottom ends of the outer walls of the long-axis bolts are threadedly connected to the inner walls of the threaded holes, and there are two groups of long-axis bolts in total; the skateboard can be fixed to the base plate by means of the long-axis bolts, thereby preventing the blower from shaking.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. By setting the connection structure between the plug plate and the socket plate, the porous steel ball box can be fixed. At this time, the distance between the blower and the porous steel ball box is about 20cm. The slide plate structure under the blower can slide on the bottom plate, so as to facilitate the adjustment of the distance between the blower and the porous steel ball box;

[0015] 2. The position of the slide plate structure is fixed by long-axis bolts. The blowing direction of the blower can be adjusted by setting a second rotating shaft at the bottom of the blower. Therefore, the blower can blow forward or diagonally to the porous steel ball box. By using this air-cooling structure, the cooling time of the steel balls in the air after quenching can be greatly shortened, so that after quenching, the steel balls can quickly enter the tempering tank for tempering, so that the residual austenite content of the bearing steel balls is lower, the tempered martensite content is higher, more uniform and fine, and the organizational level of the steel balls is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model bearing steel ball rapid air cooling device after quenching;

[0017] Figure 2 This is a front view of the utility model of the rapid air cooling device for bearing steel balls after quenching;

[0018] Figure 3 This is a front cross-sectional view of the utility model of the rapid air cooling device for bearing steel balls after quenching;

[0019] Figure 4 for Figure 3 A partial enlarged view of the middle A area;

[0020] Figure 5 for Figure 2 A partial enlarged view of the middle B area;

[0021] Figure 6 for Figure 3 A partial enlarged view of area C in the middle.

[0022] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0023] 1. Base; 2. Baffle; 3. Hollow frame; 4. Limit plate; 5. Cavity; 6. Axis core; 7. Gear plate; 8. First rotating shaft; 9. Inner plate; 10. Slide bar; 11. Gear bar; 12. Pull-out plate; 13. Slide groove; 14. Threaded column; 15. Threaded sleeve; 16. Lifting plate; 17. Load-bearing plate; 18. Insert plate; 19. Porous steel ball box; 20. Insert plate; 21. Lower hopper; 22. Bottom plate; 23. Side plate; 24. Threaded hole; 25. Slide plate; 26. Long axis bolt; 27. Bracket; 28. Placement table; 29. ​​Second rotating shaft; 30. Blower; 31. Quenching oil pool. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0027] Reference Figure 1-6 The utility model provides an embodiment: a device for rapid air cooling of bearing steel balls after quenching, comprising a base 1, baffles 2 are welded at both ends of the top of the base 1, and the placement position of the porous steel ball box 19 can be limited by setting the baffles 2. The front and rear ends of the base 1 are both set to be inclined, so that it is convenient for the staff to push the entire porous steel ball box 19. A hollow frame 3 is welded to the outer wall of one side of the base 1, and limiting plates 4 are welded at both ends of the top of the hollow frame 3. By setting the limiting plates 4, the stability of the lifting plate 16 during the up and down movement can be improved. A cavity 5 is opened on the inner wall of the hollow frame 3, and the other two on the top of the hollow frame 3 are The inner walls of the ends are rotatably connected with the shaft core 6, the bottom of the shaft core 6 is welded with a gear plate 7, the bottom center of the gear plate 7 is fixedly connected with a first rotating shaft 8, one side of the inner wall of the cavity 5 is fixedly connected with an inner plate 9, the top of the inner wall of the inner plate 9 is slidably connected with a slide bar 10, and the outer wall of one side of the slide bar 10 is fixedly connected with a gear bar 11, both ends of the inner wall of the gear bar 11 are meshed with one end of the outer wall of the gear plate 7, by setting the connection method between the gear bar 11 and the gear plate 7, when the gear bar 11 is pulled, the gear plate 7 connected to the movable end of the first rotating shaft 8 will also rotate together, and at the same time, the threaded column 14 on the shaft core 6 at the top of the gear plate 7 will also rotate.

[0028] The front and rear ends of the slide bar 10 are welded with a pull-out plate 12. By setting the pull-out plate 12, it is convenient for the staff to pull and push the slide bar 10. By installing the pull-out plates 12 at both ends of the slide bar 10, the movement range of the slide bar 10 can be limited. The inner wall of the same side of the front and rear ends of the hollow frame 3 is provided with a slide groove 13. The top of the shaft core 6 is fixedly connected with a threaded column 14. The outer wall of the threaded column 14 is threadedly connected with a threaded sleeve 15. The outer wall of the threaded sleeve 15 is fixedly connected with a lifting plate 16. By setting the connection between the threaded column 14 and the threaded sleeve 15, the threaded sleeve 15 can be rotated on the rotating threaded column. 14 The outer wall moves up and down, so as to realize the up and down sliding of the lifting plate 16, and it is also convenient to adjust the height of the porous steel ball box 19. A load-bearing plate 17 is welded on the top of the lifting plate 16, and plug plates 18 are sleeved on both ends of the inner wall of the load-bearing plate 17. A porous steel ball box 19 is placed at the center of the top of the base 1. Socket plates 20 are welded on both sides of the transverse symmetry axis of the front and rear ends of the porous steel ball box 19. The outer walls of the plug plates 18 are plugged with the inner walls of the plug plates 20. By setting a connecting structure between the plug plates 18 and the plug plates 20, the porous steel ball box 19 can be fixed. A lower hopper 21 is installed above the porous steel ball box 19.

[0029] A bottom plate 22 is welded to the bottom end of the outer wall on the other side of the base 1, and side plates 23 are welded to the front and rear ends of the top of the bottom plate 22. By setting the side plates 23, the stability of the sliding process of the slide plate 25 can be improved. A plurality of groups of threaded holes 24 are provided on the inner wall at the transverse symmetry axis of the top of the bottom plate 22. The slide plate 25 is slidably connected to the opposite surface of the side plate 23. Long-axis bolts 26 are threadedly connected to the inner walls of the slide plate 25 at both ends of the inner wall. The bottom ends of the outer walls of the long-axis bolts 26 are threadedly connected to the inner walls of the threaded holes 24. The long-axis bolts 26 can be used to fix the slide plate 25 on the bottom plate 22, thereby preventing bulging. The fan 30 shakes, and the slide plate 25 structure below the blower 30 can slide on the bottom plate 22, so as to facilitate the adjustment of the distance between the blower 30 and the porous steel ball box 19. A bracket 27 is welded at the top center of the slide plate 25, and a placement table 28 is welded on the top of the bracket 27. A second rotating shaft 29 is fixedly connected at the top center of the placement table 28. By setting the second rotating shaft 29, the blowing direction of the blower 30 can be conveniently adjusted. The blower 30 is fixedly connected to the top of the second rotating shaft 29, and a quenching oil pool 31 is welded to the outer wall on the other side of the bottom plate 22.

[0030] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A device for rapidly cooling bearing steel balls after quenching, comprising a base (1), characterized in that: Baffles (2) are welded to both ends of the top of the base (1), a porous steel ball box (19) is placed at the center of the top of the base (1), and jack plates (20) are welded on both sides of the transverse symmetry axis of the front and rear ends of the porous steel ball box (19), and the inner wall of the jack plate (20) is penetrated by a plug plate (18), and a lower hopper (21) is installed above the porous steel ball box (19). A bottom plate (22) is welded to the bottom end of the outer wall on the other side of the base (1), and a slide plate (25) is slidably connected to the top surface of the bottom plate (22), a bracket (27) is welded at the center of the top of the slide plate (25), and a placement platform (28) is welded on the top of the bracket (27). A second rotating shaft (29) is fixedly connected to the center of the top of the placement platform (28), and a blower (30) is fixedly connected to the top of the second rotating shaft (29), and a quenching oil pool (31) is welded to the outer wall on the other side of the bottom plate (22).

2. The device for rapid air cooling of bearing steel balls after quenching according to claim 1, characterized in that: A hollow frame (3) is welded to the outer wall of one side of the base (1), limiting plates (4) are welded to both ends of the top of the hollow frame (3), and a cavity (5) is opened on the inner wall of the hollow frame (3).

3. The device for rapid air cooling of bearing steel balls after quenching according to claim 2, characterized in that: The inner walls at the other two ends of the top of the hollow frame (3) are rotatably connected to an axis core (6), a gear plate (7) is welded to the bottom of the axis core (6), and a first rotating shaft (8) is fixedly connected to the center of the bottom of the gear plate (7), and the axis core (6), the gear plate (7) and the first rotating shaft (8) are each provided in two groups.

4. The device for rapid air cooling of bearing steel balls after quenching according to claim 3 is characterized in that: An inner plate (9) is fixedly connected to one side of the inner wall of the cavity (5); a slide bar (10) is slidably connected to the top of the inner wall of the inner plate (9); a gear bar (11) is fixedly connected to the outer wall of one side of the slide bar (10); both ends of the inner wall of the gear bar (11) are meshed with one end of the outer wall of the gear plate (7); and pull-out plates (12) are welded to the front and rear ends of the slide bar (10).

5. The device for rapid air cooling of bearing steel balls after quenching according to claim 4, characterized in that: The inner wall of the same side of the front end and the rear end of the hollow frame (3) is provided with a slide groove (13), the outer walls of the slide bar (10) and the gear bar (11) penetrate the inner wall of the slide groove (13), the top of the shaft core (6) is fixedly connected with a threaded column (14), the outer wall of the threaded column (14) is threadedly connected with a threaded sleeve (15), the outer wall of the threaded sleeve (15) is fixedly connected with a lifting plate (16), the top of the lifting plate (16) is welded with a load-bearing plate (17), and the inner wall ends of the load-bearing plate (17) are plugged with the outer wall of the plug plate (18).

6. The device for rapid air cooling of bearing steel balls after quenching according to claim 1, characterized in that: The front and rear ends of the top of the bottom plate (22) are welded with side plates (23), the inner wall at the transverse symmetry axis of the top of the bottom plate (22) is provided with a plurality of threaded holes (24), and the opposite surfaces of the side plates (23) are slidably connected to the outer walls of both sides of the slide plate (25).

7. The device for rapid air cooling of bearing steel balls after quenching according to claim 1, characterized in that: Both ends of the inner wall of the slide plate (25) are threadedly connected with long axis bolts (26), and the bottom ends of the outer walls of the long axis bolts (26) are threadedly connected to the inner wall of the threaded hole (24). There are two groups of long axis bolts (26) in total.

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