Bearing steel ball production heat treatment device

Abstract

The utility model discloses a heat treatment device for bearing steel ball production, which belongs to the technical field of bearing steel ball processing and comprises a quenching box and a heating box, two gears are transversely and rotatably mounted on the inner wall of the heating box, a chain is rotatably sleeved on the two gears, a plurality of placing columns are fixedly mounted on the top surface of the chain, and the placing columns are fixedly mounted on the inner wall of the quenching box. An arc-shaped groove is formed in the top face of the containing column, and a discharging hole is formed in the lower end of the interior of the heating box and located in the tail end of the chain. A fixing plate is fixedly mounted at the upper end of the interior of the heating box, a plurality of limiting cylinders are fixedly mounted at the bottom of the fixing plate, connecting rods are slidably connected into the limiting cylinders, pressing plates are fixedly mounted at the bottoms of the connecting rods, springs are fixedly connected into the limiting cylinders, and the tail ends of the springs are fixedly connected with the pressing plates. Compared with the prior art, the device can realize continuous single heating and quenching of the bearing steel balls, so that the heat treatment effect of the bearing steel balls is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing steel ball processing, in particular to a bearing steel ball production heat treatment device. Background Art

[0002] During the heat treatment process of steel balls, in order to change the internal structure and properties of the steel balls and improve the strength, hardness, wear resistance, fatigue strength and toughness of the steel balls, it is usually necessary to use heat treatment equipment to process them.

[0003] Most of the existing bearing steel ball production heat treatment devices place a batch of bearing steel balls in a supporting frame, then place the supporting frame inside a heating device for heating, and then take out the heated bearing steel balls and the supporting frame and place them in the liquid in a quenching box for quenching. However, the operation process of this heat treatment method is relatively complicated and safety accidents are prone to occur during operation. At the same time, when a large number of steel balls are accumulated and heated at the same time, uneven heating is likely to occur and the quenching effect of the internal steel balls accumulated by quenching is reduced. Therefore, there is an urgent need for a bearing steel ball production heat treatment device to improve this problem. Utility Model Content

[0004] The purpose of the utility model is to provide a heat treatment device for producing bearing steel balls to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a bearing steel ball production heat treatment device, comprising a quenching box for heat treatment of bearing steel balls and a heating box for heat treatment of bearing steel balls, a heating device fixedly mounted on the inner wall of the heating box, two gears rotatably mounted on the inner wall of the heating box, a chain rotatably sleeved on the two gears, a plurality of placement columns fixedly mounted on the top surface of the chain, and the top surface of the placement columns is provided with an arc-shaped groove, a feed hole is opened at the lower end of the interior of the heating box, and the feed hole is located at the end of the chain;

[0006] A fixing plate is fixedly installed on the upper end of the interior of the heating box, a plurality of limiting cylinders are fixedly installed on the bottom of the fixing plate, a connecting rod is slidably connected in the limiting cylinder, a pressure plate is fixedly installed on the bottom of the plurality of connecting rods, a spring is fixedly connected to the interior of the limiting cylinder, and the end of the spring is fixedly connected to the pressure plate;

[0007] A traction plate is fixedly connected obliquely to one side of the inner wall of the quenching box, and two baffles are symmetrically fixedly connected to the oblique lower end of the traction plate.

[0008] Preferably, a collecting frame is provided inside the quenching box, and a pull rod is fixedly installed on the top surface of one side of the collecting frame.

[0009] Preferably, the bottom of the collecting frame is provided with a wire mesh.

[0010] Preferably, two limiting grooves are symmetrically provided on the inner wall of the limiting cylinder, and two limiting blocks are symmetrically fixedly connected to the side wall of the connecting rod.

[0011] Preferably, the two limiting blocks fixedly connected to the side wall of the connecting rod are respectively slidably connected to the inside of two limiting grooves opened on the inner wall of the limiting cylinder.

[0012] Preferably, an arc-shaped guide strip is symmetrically fixedly connected to the top surface of the traction plate.

[0013] Preferably, a ball is rotatably mounted on the inner wall of the arc-shaped groove on the top surface of the placement column.

[0014] Compared with the prior art, the technical effects and advantages of this utility model are:

[0015] The bearing steel ball production heat treatment device benefits from the arrangement of a chain and multiple placement columns on the top surface of the chain. The top surface of the placement column is provided with an arc-shaped groove, which makes it easy for the bearing steel balls to be placed inside and remain stable. In this way, the steel balls move inside the heating box as the chain rotates. After heating is completed, they fall into the interior of the quenching box through the discharge hole opened at the bottom of the heating box, thereby realizing continuous single-piece heating of the steel balls, thereby improving the heating effect of the steel balls.

[0016] The heat treatment device for the production of bearing steel balls benefits from the arrangement of a fixed plate, a limiting cylinder, a connecting rod, a spring, and a pressure plate. The spring pushes the connecting rod to press the pressure plate downward toward the steel ball, and the pressure plate contacts the steel ball. As a result, when the steel ball moves with the chain, its top surface contacts the fixed pressure plate, thereby driving the steel ball to roll relative to the fixed pressure plate, causing it to be evenly heated, thereby further improving the heating effect of the steel ball.

[0017] Compared with the existing technology, the bearing steel ball production heat treatment device can realize continuous single-piece heating and quenching of the bearing steel balls, thereby effectively improving the heat treatment effect of the bearing steel balls. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 It is a three-dimensional cross-sectional view of the quenching box in the utility model;

[0021] Figure 3 It is a three-dimensional cross-sectional view of the heating box in the present utility model;

[0022] Figure 4 This is a planar cross-sectional view of the limiting cylinder in the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the columns and balls in the present invention.

[0024] Description of reference numerals:

[0025] In the figure: 1. Quenching box; 2. Heating box; 3. Heating device; 4. Chain; 5. Gear; 6. Placement column; 7. Pull plate; 8. Baffle; 9. Collection frame; 10. Pull rod; 11. Fixing plate; 12. Limit cylinder; 13. Connecting rod; 14. Press plate; 15. Spring; 16. Limit block; 17. Ball; 18. Arc guide strip. DETAILED DESCRIPTION

[0026] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features known in the art are not described to avoid confusion with the present invention.

[0027] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside shown in the figures of the present invention, and are explained here together.

[0028] The connection method can be bonding, welding, bolt connection, etc., which shall be based on actual needs.

[0029] like Figures 1 to 5 The main structure of a bearing steel ball production heat treatment device shown is a quenching box 1 for heat treatment of bearing steel balls and a heating box 2 for heat treatment of bearing steel balls. A heating device 3 is fixedly installed on the inner wall of the heating box 2. The heating box 2 is mounted above the quenching box 1 through a connecting rod.

[0030] Two gears 5 are installed on the inner wall of the heating box 2 for horizontal rotation. A chain 4 is rotatably sleeved on the two gears 5. A plurality of placement columns 6 are fixedly installed on the top surface of the chain 4, and the top surface of the placement column 6 is provided with an arc-shaped groove.

[0031] The top surface of the heating box 2 is fixedly connected with a discharge pipe, and one end of the discharge pipe extends to the interior of the heating box 2 and is located above the placement column 6. Because the end of the discharge pipe extending to the interior of the heating box 2 extends above the placement column 6 on the top surface of the chain 4, the steel balls will fall directly on the top surface of the placement column 6. At this time, because the distance between the end of the discharge pipe extending to the interior of the heating box 2 and the placement column 6 is relatively close, and the distance between the placement columns 6 is relatively close, and after a placement column 6 has steel balls falling on and off and is moved away, the next placement column 6 will be connected with the discharge pipe, and only a single steel ball can be dropped, so as the chain 4 rotates, the steel balls will fall evenly to the top surface of each placement column 6;

[0032] A feeding hole is provided at the lower end of the interior of the heating box 2, and the feeding hole is located at the end of the chain 4. When the steel balls on the top surface of the placement column 6 are heated, they will move to the side of one of the two gears 5. At this time, as the gear 5 rotates, the placement column 6 will be driven to tilt and the heated steel balls will fall into the interior of the quenching box 1 below through the feeding hole.

[0033] The bottom of the plurality of connecting rods 13 are fixedly installed with a fixing plate 11 at the upper end of the interior of the heating box 2, and a plurality of limiting cylinders 12 are fixedly installed at the bottom of the fixing plate 11. The limiting cylinder 12 is slidably connected to the connecting rod 13, and the bottom of the plurality of connecting rods 13 is fixedly installed with a pressure plate 14. The interior of the limiting cylinder 12 is fixedly connected to a spring 15, and the end of the spring 15 is fixedly connected to the pressure plate 14. Thanks to the arrangement of the fixing plate 11, the limiting cylinder 12, the connecting rod 13, the spring 15 and the pressure plate 14, the connecting rod 13 is pushed by the spring 15 to press the pressure plate 14 downward in the direction of the steel ball, and the pressure plate 14 is brought into contact with the steel ball, so that the top surface of the steel ball contacts the fixed pressure plate 14 when the chain 4 moves, thereby driving the steel ball to roll relative to each other, making it evenly heated, thereby further improving the heating effect of the steel ball. At the same time, the downward pressure of the spring 15 is small and only needs to press the pressure plate 14 down until the steel ball contacts. Therefore, there will be no situation in which the pressure of the pressure plate 14 is too large and causes the steel ball to move out of the top surface of the placement column 6;

[0034] A traction plate 7 is fixedly connected at an angle to one side of the inner wall of the quenching box 1, and two baffles 8 are symmetrically fixedly connected to the inclined lower end of the traction plate 7. Thanks to the setting of the traction plate 7 and the baffle 8, the quenched steel balls can be effectively guided to the inside of the collection frame 9.

[0035] A collecting frame 9 is provided inside the quenching box 1. A pull rod 10 is fixedly installed on the top surface of one side of the collecting frame 9. The bottom of the collecting frame 9 is provided with a wire filter. The pull rod 10 on one side of the top surface of the collecting frame 9 extends to the top of the quenching box 1, so it is convenient to pull out the collecting frame 9 through the pull rod 10. At the same time, thanks to the wire mesh setting at the bottom of the collecting frame 9, the quenching liquid will not be taken out when the collecting frame 9 is pulled upward.

[0036] Two limiting grooves are symmetrically opened on the inner wall of the limiting cylinder 12, and two limiting blocks 16 are symmetrically fixedly connected to the side wall of the connecting rod 13. The two limiting blocks 16 fixedly connected to the side wall of the connecting rod 13 are respectively slidably connected to the inside of the two limiting grooves opened on the inner wall of the limiting cylinder 12. Thanks to the setting of the limiting blocks 16, the sliding direction of the connecting rod 13 can be limited, and the stability of the connecting rod 13 when sliding is further improved.

[0037] The top surface of the traction plate 7 is symmetrically fixedly connected with an arc-shaped guide strip 18 . Thanks to the arrangement of the arc-shaped guide strip 18 , the steel balls can be further guided into the interior of the collection frame 9 .

[0038] A ball 17 is rotatably installed on the inner wall of the arc-shaped groove on the top surface of the placement column 6. Thanks to the setting of the ball 17, the ball 17 can greatly reduce the friction between the steel ball and the arc-shaped groove on the top surface of the placement column 6, so that when the pressure plate 14 contacts the top surface of the steel ball, the steel ball can roll more easily as the chain 4 moves.

[0039] How it works

[0040] When the bearing steel ball production heat treatment device is used, the bearing steel ball is first passed into the interior of the discharge pipe through the top surface of the heating box 2. At this time, because one end of the discharge pipe extends to the interior of the heating box 2 and extends above the placement column 6 on the top surface of the chain 4, the steel ball will fall directly on the top surface of the placement column 6. At this time, because the distance between the end of the discharge pipe extending to the interior of the heating box 2 and the placement column 6 is relatively close, and the distance between the placement columns 6 is relatively close, and after a placement column 6 has steel balls falling on and off and is moved away, the next placement column 6 will be connected with the discharge pipe, and only a single steel ball can be dropped. Therefore, as the chain 4 rotates, the steel balls will fall evenly to the top surface of each placement column 6. At this time, the steel ball is heated by the heating device 3 inside the heating box 2, and then when the steel ball moves to the bottom of the pressure plate 14, the connecting rod 13 and the pressure plate 14 are pressed down by the spring 15 to contact the steel ball. At this time, as the chain 4 continues to rotate, the steel ball will rotate on the top surface of the placement column 6, thereby heating the steel ball more evenly. When the steel ball moves to one of the gears 5 with the rotation of the chain 4, the placement column 6 will tilt and pour the heated steel ball into the inside of the quenching box 1 below through the discharge hole. Then the steel ball contacts the liquid in the quenching box 1 and is quenched. At the same time, the steel ball enters the inside of the collection frame 9 through the traction plate 7 and the arc guide bar 18.

[0041] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "including an element defined by ... does not exclude the presence of other identical elements in the process, method, article or device that includes the element."

[0042] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bearing steel ball production heat treatment device, comprising a bearing steel ball heat treatment quenching box (1) and a bearing steel ball heat treatment heating box (2), characterized in that: A heating device (3) is fixedly installed on the inner wall of the heating box (2), and two gears (5) are installed on the inner wall of the heating box (2) for transverse rotation. A chain (4) is rotatably sleeved on the two gears (5). A plurality of placement columns (6) for bearing steel balls are fixedly installed on the top surface of the chain (4), and the top surface of the placement column (6) is provided with an arc-shaped groove. A discharge hole is opened at the lower end of the interior of the heating box (2), and the discharge hole is located at the end of the chain (4); A fixing plate (11) is fixedly installed at the upper end of the interior of the heating box (2), a plurality of limiting cylinders (12) are fixedly installed at the bottom of the fixing plate (11), a connecting rod (13) is slidably connected inside the limiting cylinder (12), a pressing plate (14) is fixedly installed at the bottom of the plurality of connecting rods (13), a spring (15) is fixedly connected inside the limiting cylinder (12), and the end of the spring (15) is fixedly connected to the pressing plate (14); A traction plate (7) for traction of bearing steel balls is fixedly connected at an angle to one side of the inner wall of the quenching box (1), and two baffles (8) are symmetrically fixedly connected to the inclined lower end of the traction plate (7).

2. The heat treatment device for producing bearing steel balls according to claim 1, characterized in that: A collecting frame (9) is provided inside the quenching box (1), and a pull rod (10) is fixedly installed on the top surface of one side of the collecting frame (9).

3. The heat treatment device for producing bearing steel balls according to claim 2, characterized in that: The bottom of the collecting frame (9) is provided with a wire mesh.

4. The heat treatment device for producing bearing steel balls according to claim 1, characterized in that: Two limiting grooves are symmetrically formed on the inner wall of the limiting cylinder (12), and two limiting blocks (16) are symmetrically fixedly connected to the side wall of the connecting rod (13).

5. The heat treatment device for producing bearing steel balls according to claim 4, characterized in that: The two limiting blocks (16) fixedly connected to the side walls of the connecting rod (13) are respectively slidably connected to the inside of two limiting grooves provided on the inner wall of the limiting cylinder (12).

6. The heat treatment device for producing bearing steel balls according to claim 1, characterized in that: An arc-shaped guide strip (18) is symmetrically and fixedly connected to the top surface of the traction plate (7).

7. The heat treatment device for producing bearing steel balls according to claim 1, characterized in that: A ball (17) is rotatably mounted on the inner wall of the arc-shaped groove on the top surface of the placement column (6).

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