Heating device for bearing steel balls

Abstract

The utility model discloses a heating device for bearing steel balls, and mainly relates to the field of bearing steel ball heating. Comprising a heating furnace, a conveying belt is arranged in the heating furnace, a feeding box is arranged at one end of the conveying belt, a feeding hopper and a discharging hopper are arranged at the upper end and the lower end of the feeding box correspondingly, a preheating cavity is formed in the feeding box, and the upper end and the lower end of the preheating cavity communicate with the feeding hopper and the discharging hopper correspondingly; and a preheating column is rotationally connected into the preheating cavity, a plurality of preheating grooves are distributed in the surface of the preheating column in an array mode, a heating assembly is arranged in the preheating column, and an obliquely-arranged baffle is rotationally connected to the bottom of the discharging hopper. The steel ball preheating device has the beneficial effects that the problem of possible damage to the internal structure caused by too fast temperature rise of steel balls can be solved, uniform preheating of the steel balls before heating is realized, possible damage to the internal structure of the steel balls in the heating process is avoided, and the heating treatment quality of the steel balls is ensured.

Description

Technical Field

[0001] The utility model relates to the field of bearing steel ball heating, in particular to a bearing steel ball heating device. Background Art

[0002] During production, existing bearing steel balls need to be heat treated to improve their structural strength and instructions for use. However, during the heat treatment, existing steel balls are generally directly transported to a heating furnace for heating. When the temperature in the workshop is low, the initial temperature of the steel balls is too low. When they suddenly enter a heating furnace with a higher temperature, the internal temperature rises too quickly, causing damage to the structure of the steel balls themselves, resulting in reduced structural strength inside the steel balls, affecting the overall quality of the steel balls. Utility Model Content

[0003] The purpose of the utility model is to provide a heating device for bearing steel balls, which can solve the problem of damage to the internal structure of the steel balls caused by excessively fast heating, achieve uniform preheating of the steel balls before heating, avoid possible damage to the internal structure of the steel balls during the heating process, and ensure the quality of the heating treatment of the steel balls.

[0004] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical solutions:

[0005] A heating device for bearing steel balls comprises a heating furnace, a conveyor belt is arranged inside the heating furnace, a feed box is arranged at one end of the conveyor belt, a feed hopper and a discharge hopper are respectively arranged at the upper and lower ends of the feed box, a preheating chamber is arranged inside the feed box, the upper and lower ends of the preheating chamber are respectively connected to the feed hopper and the discharge hopper, a preheating column is rotatably connected inside the preheating chamber, a plurality of preheating grooves are distributed in an array on the surface of the preheating column, a heating assembly is arranged inside the preheating column, and an inclined baffle is rotatably connected to the bottom of the discharge hopper.

[0006] Furthermore, a receiving cavity is provided inside the preheating column, and the heating component is arranged in the receiving cavity.

[0007] Furthermore, the heating assembly includes a plurality of electric heating tubes distributed in an array.

[0008] Furthermore, a bearing plate is slidably connected in the heating furnace in a transverse direction, and a push plate is provided at the bottom of the bearing plate.

[0009] Furthermore, the push plate is rotatably connected to the bottom of the bearing plate, and one end of the bearing plate is provided with a limit plate used in conjunction with the push plate.

[0010] Furthermore, a plurality of return springs are provided between the push plate and the bottom of the support plate, the bottom of the support plate is rotatably connected to a rotating shaft, a plurality of power arms are distributed in an array on the rotating shaft, and the power arms are in contact with the push plate.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The structure of the utility model is that a feed box is arranged at one end of the conveyor belt, and steel balls enter the internal preheating chamber from the feed hopper on the top of the feed box, and the preheating chamber is rotatably connected to the preheating column. A plurality of preheating grooves are distributed in an array on the surface of the preheating column. The steel balls fall from the feed hopper into the preheating grooves on the preheating column, and the preheating column is heated by a heating component so that the preheating column is kept at a certain temperature, so that the steel balls entering the preheating grooves are evenly heated to a certain temperature. As the preheating column rotates, the preheating grooves rotate to the discharge hopper, and the steel balls therein fall onto the conveyor belt, and then enter the heating furnace for heating treatment. Such a structure effectively avoids the damage to the internal structure that may be caused by sudden high-temperature heating of the steel balls when the temperature is low in cold weather, and ensures the uniformity and quality of the heating treatment of the steel balls.

[0013] 2. A baffle with an inclined setting is rotatably connected to the bottom of the discharge hopper. When the preheated steel balls fall from the discharge hopper, they first fall on the inclined baffle, thereby reducing the falling speed of the steel balls. Then the baffle rotates downward to make the steel balls fall steadily on the conveyor belt, thereby reducing the speed at which the steel balls fall on the conveyor belt, avoiding the falling of the steel balls caused by splashing on the conveyor belt, making the arrangement of the steel balls on the conveyor belt more uniform, and ensuring the quality of subsequent heating treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attached Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Attached Figure 2 It is a right view of the utility model.

[0016] Attached Figure 3 It is the attachment of the utility model Figure 2 Cross-sectional view along the AA direction.

[0017] Attached Figure 4 It is the attachment of the utility model Figure 3 Cross-sectional view along the BB direction.

[0018] Numbers shown in the accompanying drawings:

[0019] 1. Heating furnace; 2. Conveyor belt; 3. Feed box; 4. Feed hopper; 5. Discharge hopper; 6. Preheating chamber; 7. Preheating column; 8. Preheating trough; 9. Baffle; 10. Accommodating chamber; 11. Electric heating tube; 12. Loading plate; 13. Push plate; 14. Limiting plate; 15. Reset spring; 16. Rotating shaft; 17. Power arm. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the present application.

[0021] Reference Figure 1 and Figure 2The utility model is a heating device for bearing steel balls. The main structure includes a heating furnace 1. The heating furnace 1 is heated by any existing heating structure so that the steel balls entering therein are evenly heated to achieve heat treatment of the steel balls. A conveyor belt 2 is arranged inside the heating furnace 1. The conveyor belt 2 is generally made of steel belt material, which can withstand high temperatures. The steel balls are slowly fed into the heating furnace 1 for heating, and the discharge after heating is more convenient. A feed box 3 is arranged at one end of the conveyor belt 2. The feed box 3 is located above one end of the conveyor belt 2. The steel balls fall from the feed box 3 onto the conveyor belt 2. A feed hopper 4 and a discharge hopper 5 are respectively arranged at the upper and lower ends of the feed box 3. The longitudinal section of the feed hopper 4 is generally a cone. The feed box 3 is shaped so that a certain number of steel balls can be stored therein, and the conical bottom allows the steel balls to automatically fall from the bottom of the cone smoothly, making the loading of the steel balls smoother. A preheating chamber 6 is provided inside the feed box 3, and the longitudinal section of the preheating chamber 6 is preferably circular. The upper and lower ends of the preheating chamber 6 are respectively connected to the feed hopper 4 and the discharge hopper 5, so that the steel balls automatically fall from the bottom of the feed hopper 4 into the preheating chamber 6, and a preheating column 7 is rotatably connected to the preheating chamber 6 through a bearing. The longitudinal section of the preheating column 7 is also circular, and the preheating column 7 is driven to rotate by an existing motor. A plurality of preheating grooves 8 are distributed on the surface array of the preheating column 7, and the preheating grooves 8 are recessed downward from the top of the preheating column 7. When the preheating column 7 rotates, the preheating grooves 8 When it is connected to the bottom of the feed hopper 4, a part of the steel balls fall into the preheating groove 8, and the remaining steel balls are blocked by the steel balls in the preheating groove 8, waiting for the subsequent preheating groove 8 to rotate to the bottom before falling, thereby realizing the step-by-step feeding operation of the steel balls. The interior of the preheating column 7 is provided with a heating component, and any existing heating structure can be adopted, so that the preheating column 7 itself maintains a certain temperature, so that the steel balls are preheated briefly when entering the preheating groove 8. With the rotation of the preheating column 7, the preheating groove 8 rotates to the discharge hopper 5, and the steel balls therein fall, and fall along the discharge hopper 5 onto the conveyor belt 2 below, thereby realizing the preheating treatment of the steel balls in cold weather, and avoiding the internal damage that may be caused by the low-temperature steel balls being heated by high temperature in a short time. The damage to the structure ensures the quality of subsequent heating treatment of the steel balls. The bottom of the discharge hopper 5 is rotatably connected to an inclined baffle 9 through a bearing. The baffle 9 is driven to rotate by an existing motor or telescopic rod, so that the steel balls falling from the discharge hopper 5 first fall on the inclined baffle 9. Preferably, the top of the baffle 9 is covered with a buffer layer with large friction, which effectively slows down the falling speed of the steel balls. After the falling speed is greatly reduced, the baffle 9 rotates, so that the steel balls automatically fall on the conveyor belt 2 below. Such a structure slows down the falling speed of the steel balls, avoids the falling caused by splashing when they fall on the conveyor belt 2, makes the distribution of the steel balls on the conveyor belt 2 more balanced, and improves the uniformity and quality of subsequent heating treatment of the steel balls.

[0022] Preferably, a accommodating cavity 10 is provided inside the preheating column 7, so that the interior of the preheating column 7 is a hollow structure, and the heating component is arranged in the accommodating cavity 10. Such a structure can fix the heating component inside the feed box 3. When the preheating column 7 rotates, there is no need to drive the heating component to rotate at the same time, so that the heating component maintains a stable electrical connection with the outside world. At the same time, it can also achieve effective heating of the rotating preheating column 7, thereby improving the structural strength and service life of the device.

[0023] Preferably, the heating assembly includes a plurality of electric heating tubes 11 distributed in an array. The electric heating tubes 11 have a simple structure and high heating efficiency. At the same time, they can be fixed in the feed box 3 by welding or bolts and maintain an electrical connection with the outside world, thereby ensuring the heating effect on the rotating preheating column 7.

[0024] Preferably, a carrying plate 12 is connected in a transverse sliding manner in the heating furnace 1, and the carrying plate 12 uses the existing motor and screw structure to achieve its transverse reciprocating sliding. A push plate 13 is provided at the bottom of the carrying plate 12, and the bottom of the push plate 13 extends to the top of the conveyor belt 2, so that the steel balls dropped on the conveyor belt 2 are pushed and sorted by the carrying plate 12 and the push plate 13, so that the steel balls are neatly arranged on the conveyor belt 2, thereby improving the utilization rate of the space in the heating furnace 1 and improving the uniformity of the heating treatment of the steel balls.

[0025] Preferably, refer to Figure 3 The push plate 13 is rotatably connected to the bottom of the carrying plate 12 by a pin or a hinge, and one end of the carrying plate 12 is welded or bolted with a limit plate 14 used in conjunction with the push plate 13. This structure allows the carrying plate 12 to drive the push plate 13 to move and push the steel balls to be sorted. The push plate 13 rotates to a vertical position, and the limit plate 14 limits the vertical state of the push plate 13 from one side, so that the push plate 13 can stably contact the steel balls on the conveyor belt 2 and push it to move. When the sorting is completed, the carrying plate 12 drives the push plate 13 to return, and the push plate 13 rotates to a state close to the horizontal state, avoiding contact with the subsequent fallen steel balls, which causes the steel balls to move in the opposite direction, thereby realizing efficient and accurate reciprocating arrangement operation of the steel balls and ensuring the continuity of the steel ball arrangement operation.

[0026] Preferably, refer to Figure 4, a plurality of return springs 15 are provided between the push plate 13 and the bottom of the supporting plate 12. When the push plate 13 rotates to the vertical direction, the return spring 15 is stretched. The bottom of the supporting plate 12 is rotatably connected to a rotating shaft 16 through a bearing. The rotating shaft 16 is driven to rotate by a motor. A plurality of power arms 17 are distributed in an array fixed by welding or bolts on the rotating shaft 16. The power arms 17 are in contact with the push plate 13. Such a structure allows the plurality of power arms 17 to contact and drive the push plate 13 to rotate when the rotating shaft 16 rotates. In this process, the return spring 15 is stretched. When the supporting plate 12 drives the push plate 13 to return after the arrangement is completed, the rotating shaft 16 rotates in the opposite direction to disengage the power arm 17 from the push plate 13. Under the action of the return spring 15, the push plate 13 is reset and rotated to a state close to the horizontal state, making the rotation control of the push plate 13 more convenient and smooth.

[0027] Working principle: The structure of the utility model is provided with a feed box 3 at one end of the conveyor belt 2, and the steel balls enter the internal preheating chamber 6 from the feed hopper 4 on the top of the feed box 3, and the preheating chamber 6 is connected to the preheating column 7 by rotation. The surface array of the preheating column 7 is provided with a plurality of preheating grooves 8, and the steel balls fall from the feed hopper 4 into the preheating grooves 8 on the preheating column 7, and the preheating column 7 is heated by the heating component so that the preheating column 7 maintains a certain temperature, so that the steel balls entering the preheating grooves 8 are evenly heated to a certain temperature, and as the preheating column 7 rotates, the preheating grooves 8 rotate to the discharge hopper 5, and the steel balls therein fall onto the conveyor belt 2, and then enter the heating furnace 1 for heating. Such a structure effectively avoids the damage to the internal structure caused by sudden high-temperature heating of the steel balls when the temperature is low in cold weather, thereby ensuring the uniformity and quality of the heating treatment of the steel balls; a baffle 9 is rotatably connected to the bottom of the discharge hopper 5, and the preheated steel balls first fall on the inclined baffle 9 when falling from the discharge hopper 5, thereby reducing the falling speed of the steel balls, and then the baffle 9 rotates downward to make the steel balls fall smoothly on the conveyor belt 2, thereby reducing the falling speed of the steel balls on the conveyor belt 2, avoiding the falling caused by splashing on the conveyor belt 2, making the arrangement of the steel balls on the conveyor belt 2 more uniform, and ensuring the quality of subsequent heating treatment.

Claims

1. A heating device for bearing steel balls, comprising a heating furnace (1), a conveyor belt (2) is provided inside the heating furnace (1), a feed box (3) is provided at one end of the conveyor belt (2), and the device is characterized in that: A feed hopper (4) and a discharge hopper (5) are respectively provided at the upper and lower ends of the feed box (3); a preheating chamber (6) is provided inside the feed box (3); the upper and lower ends of the preheating chamber (6) are respectively connected to the feed hopper (4) and the discharge hopper (5); a preheating column (7) is rotatably connected inside the preheating chamber (6); a plurality of preheating grooves (8) are distributed in an array on the surface of the preheating column (7); a heating component is provided inside the preheating column (7); and a baffle (9) which is arranged obliquely is rotatably connected to the bottom of the discharge hopper (5).

2. A bearing steel ball heating device according to claim 1, characterized in that: The interior of the preheating column (7) is provided with a receiving chamber (10), and the heating component is arranged in the receiving chamber (10).

3. A heating device for bearing steel balls according to claim 2, characterized in that: The heating component comprises a plurality of electric heating tubes (11) distributed in an array.

4. The heating device for bearing steel balls according to claim 1, characterized in that: A carrying plate (12) is slidably connected in a transverse direction in the heating furnace (1), and a push plate (13) is provided at the bottom of the carrying plate (12).

5. A heating device for bearing steel balls according to claim 4, characterized in that: The push plate (13) is rotatably connected to the bottom of the carrying plate (12), and one end of the carrying plate (12) is provided with a limiting plate (14) used in conjunction with the push plate (13).

6. A heating device for bearing steel balls according to claim 5, characterized in that: A plurality of return springs (15) are provided between the push plate (13) and the bottom of the support plate (12); the bottom of the support plate (12) is rotatably connected to a rotating shaft (16); a plurality of power arms (17) are arranged in an array on the rotating shaft (16); and the power arms (17) are in contact with the push plate (13).

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