Bearing steel ball manufacturing equipment with rolling tempering process

Abstract

The utility model discloses bearing steel ball manufacturing equipment with a rolling tempering process, and relates to the technical field of bearing steel ball manufacturing, the bearing steel ball manufacturing equipment comprises a tempering furnace and a furnace door arranged at the side part of the tempering furnace, a driving motor is fixedly arranged at the top of the tempering furnace, and an output shaft of the driving motor penetrates into the tempering furnace and is fixedly provided with a vertical rod; the rod wall of the vertical rod is fixedly sleeved with a plurality of placement plates arranged at intervals, a plurality of rolling grooves arranged at intervals are formed in the placement plates, a plurality of upper push plates arranged at intervals are fixedly arranged on one side of the inner wall of the tempering furnace, and a lower push plate is arranged below each placement plate; and a contact rolling mechanism for driving the lower push plate to move is arranged between the lower push plate and the bottom of the placing plate. When the balls rotate along with the placement plate, the bearing steel balls can roll by making contact with the upper push plate and the lower push plate, it is guaranteed that the surfaces of the bearing steel balls can make full contact with heat in the tempering furnace, the surfaces of the bearing steel balls are heated evenly, and the tempering effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of bearing steel ball manufacturing technology, and specifically to bearing steel ball manufacturing equipment with rolling tempering process. Background Technology

[0002] In the processing of bearing steel balls, tempering is required to eliminate internal stress after quenching, adjust mechanical properties, and stabilize the microstructure and dimensions. For example, patent document CN221094227U discloses a tempering device for processing bearing steel balls with an adjustment function. This device uses a rotating stirring method to drive the bearing steel balls to move, so that the bearing steel balls are heated evenly. However, this can lead to the accumulation of bearing steel balls, and the bearing steel balls inside have poor heating effect, making it difficult for the bearing steel balls to be heated evenly. This device prevents the steel balls from accumulating by setting a limiting structure, thereby making the bearing steel balls heated evenly and with good heating effect, resulting in a good tempering effect.

[0003] The aforementioned device causes the steel balls to rotate in the tempering furnace during tempering. At this time, the steel balls are fixed in position and cannot roll, which results in their surface not being able to fully contact the heat inside the tempering furnace, thus reducing the tempering efficiency. Summary of the Invention

[0004] In view of the problems existing in the existing bearing steel ball manufacturing equipment with rolling tempering process, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a bearing steel ball manufacturing equipment with a rolling tempering process, which solves the problem that the bearing steel ball is fixed in position during tempering, resulting in uneven heating of the steel ball surface and reduced tempering effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A bearing steel ball manufacturing equipment with a rolling tempering process includes a tempering furnace and a furnace door located on the side of the tempering furnace. A drive motor is fixedly installed on the top of the tempering furnace. The output shaft of the drive motor passes through the tempering furnace and is fixedly installed with a vertical rod. Multiple spaced placement plates are fixedly sleeved on the rod wall of the vertical rod. Multiple spaced rolling grooves are opened inside the placement plates. Multiple spaced upward push plates are fixedly installed on one side of the inner wall of the tempering furnace. A downward push plate is provided below each placement plate.

[0008] A contact rolling mechanism for driving the push plate to move is provided between the bottom of the push plate and the placement plate.

[0009] Preferably, the contact rolling mechanism includes a fixed plate, which is fixedly disposed at the bottom of the placement plate. A drive screw is rotatably disposed inside the fixed plate. A push plate is threadedly sleeved on the outside of the drive screw. A guide rod is slidably disposed inside the push plate. The guide rod is fixedly connected to the fixed plate.

[0010] Preferably, a transmission gear is fixedly provided at the end of the drive screw, and multiple sets of spaced drive racks are fixedly provided on the inner wall of the tempering furnace away from the upper push plate, with two drive racks in each set, and the drive racks are configured to cooperate with the transmission gear.

[0011] Preferably, two adjacent drive racks are staggered and their tooth grooves face each other.

[0012] Furthermore, both sides of the upper push plate and the lower push plate are bent.

[0013] Preferably, the drive rack is an arc-shaped rack.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. This utility model, through the provision of a vertical rod, a placement plate, a rolling groove, an upper push plate, a lower push plate, and a contact rolling mechanism, enables the bearing steel balls to roll themselves by contacting the upper push plate and the lower push plate when the ball follows the rotation of the placement plate. This ensures that the surface of the bearing steel balls can fully contact the heat inside the tempering furnace, resulting in uniform heating of the bearing steel ball surface and improving the tempering effect. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0019] Figure 3 For the present utility model Figure 2 Enlarged schematic diagram of part A.

[0020] Figure 4 This is a top view schematic diagram of the tempering furnace and drive rack of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Tempering furnace; 2. Furnace door; 3. Drive motor; 4. Vertical rod; 5. Placement plate; 6. Rolling groove; 7. Upper push plate; 8. Lower push plate; 9. Fixing plate; 10. Drive screw; 11. Guide rod; 12. Transmission gear; 13. Drive rack. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] This utility model discloses a bearing steel ball manufacturing equipment with a rolling tempering process.

[0025] This utility model provides, for example Figure 1-4 The bearing steel ball manufacturing equipment with rolling tempering process shown includes a tempering furnace 1 and a furnace door 2 located on the side of the tempering furnace 1. A drive motor 3 is fixedly installed on the top of the tempering furnace 1. The output shaft of the drive motor 3 passes through the tempering furnace 1 and is fixedly installed with a vertical rod 4. Multiple spaced placement plates 5 are fixedly sleeved on the rod wall of the vertical rod 4. Multiple spaced rolling grooves 6 are opened inside the placement plates 5. Multiple spaced upper push plates 7 are fixedly installed on one side of the inner wall of the tempering furnace 1. A lower push plate 8 is provided below each placement plate 5. Both sides of the upper push plate 7 and the lower push plate 8 are bent.

[0026] A contact rolling mechanism for driving the lower push plate 8 to move is provided between the bottom of the lower push plate 8 and the placement plate 5. The contact rolling mechanism includes a fixed plate 9, which is fixedly disposed at the bottom of the placement plate 5. A drive screw 10 is rotatably disposed inside the fixed plate 9. The lower push plate 8 is threadedly sleeved on the outside of the drive screw 10. A guide rod 11 is slidably disposed inside the lower push plate 8. The guide rod 11 is fixedly connected to the fixed plate 9.

[0027] In order to ensure that when the placement plate 5 drives the bearing steel balls to rotate, the push plate 8 can be stably driven to contact the bearing steel balls and cause the bearing steel balls to roll and be heated, such as Figure 2-4 As shown, a transmission gear 12 is fixedly provided at the end of the drive screw 10. Multiple sets of drive racks 13 are fixedly provided on the inner wall of the tempering furnace 1 away from the upper push plate 7. The drive racks 13 are arc-shaped racks. There are two drive racks 13 in each set. The drive racks 13 are configured to cooperate with the transmission gear 12. The two adjacent drive racks 13 are staggered and the tooth grooves face each other.

[0028] Working principle: When the bearing steel balls need to be tempered, open the furnace door 2 and put the steel balls into the rolling groove 6 of the placement plate 5 (each rolling groove 6 can hold one or more steel balls). After closing the furnace door 2, the drive motor 3 starts, which drives the vertical rod 4 and the placement plate 5 fixed on it to rotate clockwise around the central axis of the tempering furnace 1. During the rotation of the placement plate 5, the steel balls in the rolling groove 6 move in a circular motion with the placement plate. Due to gravity, the steel balls are initially stationary at the bottom of the rolling groove 6 and do not contact the upper push plate 7 and the lower push plate 8.

[0029] When the placement plate 5 rotates to the side near the inner wall of the tempering furnace 1 where the upper push plate 7 is located, the bent end of the upper push plate 7 gradually extends into the rolling groove 6, gently pressing the top of the steel ball from above, forcing the steel ball to roll downwards, thus initially driving the steel ball to roll. As the placement plate 5 continues to rotate, the lower push plate 8 below the placement plate 5 is driven upwards through the contact rolling mechanism. The transmission gear 12 fixed to the bottom of the placement plate 5 rotates with the placement plate and meshes with the arc-shaped drive rack 13 on the inner wall of the tempering furnace 1 in sequence. Because the adjacent drive racks 13 are misaligned and their tooth grooves face each other, the transmission gear 12 meshes with the steel ball. The upper push plate 7 and the lower push plate 8 rotate clockwise or counterclockwise, driving the drive screw 10 to rotate. The lower push plate 8 is threaded onto the drive screw 10 and is restricted to moving up and down by the guide rod 11. When the drive screw 10 rotates, the lower push plate 8 moves upward along the guide rod 11, and its bent end contacts the bottom of the steel ball from below. The synchronous squeezing action of the upper push plate 7 and the lower push plate 8 causes the steel ball to roll autonomously in the rolling groove 6. Each part of the steel ball surface comes into contact with the hot air or heat source in the tempering furnace 1 in sequence, avoiding the problem of local overheating or insufficient heating caused by the fixed position in the traditional static tempering.

[0030] As the placement plate 5 continues to rotate away from the area of ​​the upper push plate 7 and the drive rack 13, the transmission gear 12 disengages from the rack, the drive screw 10 stops rotating, and the lower push plate 8 falls back along the guide rod 11 under the action of gravity. The steel ball temporarily returns to a stationary state. As the placement plate 5 continues to rotate, the steel ball repeats the rolling action once every time it passes the upper push plate 7 and the lower push plate 8, ensuring that the heat uniformity of the steel ball surface is significantly improved throughout the tempering process.

[0031] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A bearing steel ball manufacturing equipment with a rolling tempering process, comprising a tempering furnace (1) and a furnace door (2) located on the side of the tempering furnace (1), characterized in that, A drive motor (3) is fixedly installed on the top of the tempering furnace (1). The output shaft of the drive motor (3) passes through the tempering furnace (1) and is fixedly installed with a vertical rod (4). A number of spaced placement plates (5) are fixedly sleeved on the rod wall of the vertical rod (4). A number of spaced rolling grooves (6) are opened inside the placement plate (5). A number of spaced upper push plates (7) are fixedly installed on one side of the inner wall of the tempering furnace (1). A lower push plate (8) is provided below each placement plate (5). A contact rolling mechanism for driving the push plate (8) to move is provided between the bottom of the push plate (8) and the placement plate (5).

2. The bearing steel ball manufacturing equipment with rolling tempering process according to claim 1, characterized in that, The contact rolling mechanism includes a fixed plate (9), which is fixedly disposed at the bottom of the placement plate (5). A drive screw (10) is rotatably disposed inside the fixed plate (9). A push plate (8) is threadedly sleeved on the outside of the drive screw (10). A guide rod (11) is slidably disposed inside the push plate (8). The guide rod (11) is fixedly connected to the fixed plate (9).

3. The bearing steel ball manufacturing equipment with rolling tempering process according to claim 2, characterized in that, The end of the drive screw (10) is fixedly provided with a transmission gear (12), and the inner wall of the tempering furnace (1) away from the upper push plate (7) is fixedly provided with multiple sets of spaced drive racks (13), each set of drive racks (13) has 2, and the drive racks (13) are configured to cooperate with the transmission gears (12).

4. The bearing steel ball manufacturing equipment with rolling tempering process according to claim 3, characterized in that, The two adjacent drive racks (13) are staggered and their tooth grooves face each other.

5. The bearing steel ball manufacturing equipment with rolling tempering process according to claim 1, characterized in that, Both sides of the upper push plate (7) and the lower push plate (8) are bent.

6. The bearing steel ball manufacturing equipment with rolling tempering process according to claim 3, characterized in that, The drive rack (13) is an arc-shaped rack.

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