A bearing steel ball gradient pressurized cooling device

Abstract

The utility model relates to bearing steel ball technical field especially relates to a bearing steel ball gradient pressurization cooling device, including bottom plate, water storage tank, support seat, cooling box, draft tube and conveying structure, the water storage tank is fixedly connected with bottom plate, the support seat is fixedly connected with water storage tank, the cooling box is fixedly connected with support seat, the cooling box is connected with three draft tubes, and the conveying structure is provided in the cooling box. Through the jet nozzle to high pressure water flow bearing steel ball carries out quick cooling, lets very high cooling speed strong inhibition and breaks steam film, realizes very fast single -phase counter current heat transfer, and the mist nozzle sprays the fine mist and is attached on bearing steel ball, makes it to bearing steel ball carries out even cooling, prevents the cracking.

Description

Technical Field

[0001] This utility model relates to the field of bearing steel ball technology, and in particular to a gradient pressure cooling device for bearing steel balls. Background Technology

[0002] Bearing steel balls are the core rolling elements of bearings. They are usually made of high-carbon chromium bearing steel and formed into high-precision spheres through processes such as cold heading, heat treatment, and grinding. They bear the core functions of transmitting loads and reducing friction. Cooling is the key process in its heat treatment, and the purpose is to cool it down instantly with high-pressure water flow.

[0003] Patent CN222411729U discloses a quenching and cooling device for machining steel balls in wheel hub bearings. It includes a quenching tank with a bead inlet and a circulation channel. A drive belt is inclinedly positioned within the circulation channel, and paddles are mounted on the drive belt. A baffle plate and a reflux block are fixedly arranged transversely within the quenching tank, and the drive belt passes around the baffle plate. When using this patent, the quenching fluid is circulated by the paddles on the drive belt. The hotter quenching fluid at the bead inlet is carried by the paddles, passing through the bead discharge channel, reflux channel, and narrow channel before returning to the bead inlet to cool the steel balls, thus achieving overall circulation of the quenching fluid within the quenching tank. However, when using the aforementioned prior art patent, when the paddles transport the bearing steel balls into contact with the quenching fluid, the surface undergoes violent boiling, forming a stable vapor film, resulting in a slower cooling rate and affecting the hardness and microstructure uniformity of the bearing steel balls.

[0004] Therefore, there is a need to provide a three-stage cooling gradient pressure cooling device for bearing steel balls. Utility Model Content

[0005] In order to overcome the shortcomings of the existing patents mentioned above, where the surface of the bearing steel balls in the paddle transport comes into contact with the quenching liquid and a stable vapor film is formed by violent boiling, resulting in a slow cooling rate and affecting the hardness and uniformity of the bearing steel balls, this utility model provides a three-stage cooling gradient pressurized cooling device for bearing steel balls.

[0006] To address the aforementioned problems, this utility model adopts the following technical solution: a gradient pressure cooling device for bearing steel balls, comprising a base plate, a water storage tank, a support base, a cooling box, guide pipes, and a conveying structure. The water storage tank is fixedly connected to the base plate, the support base is fixedly connected to the water storage tank, the cooling box is fixedly connected to the support base, three guide pipes are connected to the cooling box, and a conveying structure is provided on the cooling box. The device further comprises a partition plate, a fixed base, a first guide pipe, a jet nozzle, a second guide pipe, a direct current nozzle, a third guide pipe, an atomizing nozzle, a connecting pipe, a water supply pipe, and a pipeline pump. There are two partition plates inside the fixed connection. There are three fixed seats inside the cooling box. The first conduit is fixedly connected to the fixed seat at the front. The first conduit is equipped with multiple jet nozzles. The third conduit is fixedly connected to the fixed seat at the rear. The third conduit is equipped with multiple atomizing nozzles. The second conduit is fixedly connected to the fixed seat between the first and third conduits. The second conduit is equipped with multiple direct current nozzles. Connecting pipes are connected to the first, second, and third conduits. A pipeline pump is installed on the water storage tank. A water supply pipe is connected between the pipeline pump and the three connecting pipes.

[0007] Furthermore, the conveying structure includes mounting rings, conveying rods, servo motors, and pulley assemblies. A servo motor is mounted on the rear of the base plate. Two mounting rings are rotatably mounted on the cooling box. A conveying rod is fixedly connected between the two mounting rings. A pulley assembly is provided between the mounting ring near the third conduit and the output shaft of the servo motor.

[0008] Furthermore, it also includes suspension rods, mounting frames, and filter screens. Four suspension rods are suspended on the water storage tank, and mounting frames are fixedly connected between the four suspension rods. Filter screens are installed inside the mounting frames.

[0009] Furthermore, it also includes foot pads, with four foot pads fixedly connected to the base plate.

[0010] Furthermore, it also includes transparent glass, with transparent glass embedded in the cooling box.

[0011] Furthermore, the conveyor rod is spiral-shaped.

[0012] Compared with the prior art, the present invention has the following technical effects: 1. The high-pressure water flow of the jet nozzle rapidly cools the bearing steel ball, and the extremely high cooling speed strongly suppresses and breaks the vapor film, achieving extremely fast one-way relative heat transfer. The DC nozzle maintains the transition cooling with a stable flow rate to prevent the vapor film from reappearing. The atomizing nozzle sprays out fine water mist that adheres to the bearing steel ball, so that it cools the bearing steel ball evenly and prevents cracking.

[0013] 2. By starting the servo motor, the output shaft of the servo motor drives the mounting ring to rotate through the pulley assembly, which in turn drives the spiral conveyor rod to rotate. The steel balls pass through three temperature zones in sequence in the spiral guide groove of the conveyor rod, realizing automatic step-by-step conveying.

[0014] 3. The filter screen inside the mounting frame filters out metal debris and impurities to ensure the cleanliness of the coolant. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional sectional view of the base plate, support seat, and cooling box of this utility model.

[0017] Figure 3 This is a three-dimensional sectional view of the cooling box, partition plate, and mounting ring of this utility model.

[0018] Figure 4 This is a three-dimensional cross-sectional view of the cooling box, guide pipe, and atomizing nozzle of this utility model.

[0019] Figure 5 This is a three-dimensional sectional view of the exploded structure of the water storage tank, mounting frame, and filter screen of this utility model.

[0020] The markings in the attached diagram are: 1-base plate, 2-water storage tank, 3-support base, 4-cooling tank, 401-guide pipe, 5-partition plate, 6-mounting ring, 7-conveying rod, 8-fixed base, 9-first guide pipe, 10-jet nozzle, 11-second guide pipe, 12-direct current nozzle, 13-third guide pipe, 14-atomizing nozzle, 15-connecting pipe, 16-water supply pipe, 17-pipeline pump, 18-servo motor, 19-pulley assembly, 20-suspension rod, 21-mounting frame, 22-filter screen, 23-foot pad, 24-transparent glass. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1: A gradient pressure cooling device for bearing steel balls, see reference. Figures 1-5As shown, the device includes a base plate 1, a water storage tank 2, a support base 3, a cooling tank 4, a guide pipe 401, and a conveying structure. The water storage tank 2 is welded to the top of the base plate 1. The support base 3 is fixedly connected to the upper part of the water storage tank 2, and the cooling tank 4 is fixedly connected to the support base 3. Three guide pipes 401 are evenly spaced at the bottom of the cooling tank 4, passing through the support base 3 and located above the water storage tank 2. The cooling tank 4 has a conveying structure for conveying bearing steel balls. It also includes a partition plate 5, a fixed base 8, a first conduit 9, a jet nozzle 10, a second conduit 11, a direct current nozzle 12, a third conduit 13, an atomizing nozzle 14, a connecting pipe 15, a water supply pipe 16, and a pipeline pump 17. Partition plates 5 are welded to both the front and rear parts of the cooling tank 4. The two partition plates 5 separate the cooling... The cooling box 4 is divided into three chambers, namely a high-temperature zone, a medium-temperature zone, and a low-temperature zone. Three fixed seats 8 are evenly spaced and fixedly connected inside the cooling box 4. A first conduit 9 is fixedly connected to the fixed seat 8 in the high-temperature zone. Multiple jet nozzles 10 are evenly spaced on the first conduit 9. A second conduit 11 is fixedly connected to the fixed seat 8 in the medium-temperature zone. Multiple direct current nozzles 12 are evenly spaced on the second conduit 11. A third conduit 13 is fixedly connected to the fixed seat 8 in the low-temperature zone. Multiple atomizing nozzles 14 are evenly spaced on the third conduit 13. Connecting pipes 15 are connected to the first conduit 9, the second conduit 11, and the third conduit 13. A pipeline pump 17 is installed on the outside of the water storage tank 2 by bolt connection. A water supply pipe 16 is connected between the pipeline pump 17 and the three connecting pipes 15.

[0023] See Figure 1 As shown, it also includes transparent glass 24, which is embedded in the cooling box 4.

[0024] When using this device, first start the pipeline pump 17. The pipeline pump 17 diverts the coolant in the water storage tank 2 through the water supply pipe 16 to the three connecting pipes 15. The three connecting pipes 15 deliver the coolant to the first conduit 9, the second conduit 11, and the third conduit 13 respectively. Then, the bearing steel balls are delivered to the cooling box 4 through the conveying structure. When the bearing steel balls enter the high temperature zone, the jet nozzle 10 uses high-pressure water flow to quickly cool the bearing steel balls, so that the extremely high cooling speed strongly suppresses and breaks the vapor film, achieving extremely fast single-phase heat transfer. When the bearing steel balls enter the medium temperature zone, the direct current nozzle 12 maintains transition cooling with a stable flow rate to prevent the vapor film from reappearing. When the bearing steel balls enter the low temperature zone, the atomizing nozzle 14 sprays fine water mist to adhere to the bearing steel balls, so that the bearing steel balls are cooled evenly to prevent cracking. The guide pipe 401 collects the excess coolant back to the water storage tank 2 to form a circulating cooling system. The cooling process can be observed in real time through the transparent glass 24.

[0025] Example 2: Based on Example 1, refer to Figure 2 and Figure 3As shown, the conveying structure includes a mounting ring 6, a conveying rod 7, a servo motor 18, and a pulley assembly 19. The servo motor 18 is bolted to the rear of the base plate 1. Mounting rings 6 are rotatably mounted on both the front and rear sides of the cooling box 4. The conveying rod 7 is welded between the two mounting rings 6. A pulley assembly 19 is set between the mounting ring 6, which is close to the third conduit 13, and the output shaft of the servo motor 18. The pulley assembly 19 consists of two pulleys and a flat belt. The two pulleys are fixed to the mounting ring 6 and the output shaft of the servo motor 18, respectively, and the flat belt is wound around the two pulleys.

[0026] See Figure 1 As shown, it also includes foot pads 23, and foot pads 23 are symmetrically fixed to the left and right sides of the bottom of the base plate 1.

[0027] See Figure 2 and Figure 3 As shown, the conveyor rod 7 is spiral-shaped.

[0028] When the conveying structure is required, the servo motor 18 is started. The output shaft of the servo motor 18 drives the mounting ring 6 to rotate through the pulley assembly 19, which in turn drives the spiral conveying rod 7 to rotate. The steel balls pass through three temperature zones in sequence in the spiral guide groove of the conveying rod 7, realizing automatic step-by-step conveying. When the device is operating, the foot pads 23 reduce the vibration generated by the equipment.

[0029] See Figure 1 , Figure 2 and 5 As shown, it also includes a suspension rod 20, a mounting frame 21 and a filter screen 22. Four suspension rods 20 are suspended on the water storage tank 2, and the mounting frame 21 is fixedly connected between the four suspension rods 20. The filter screen 22 is installed inside the mounting frame 21.

[0030] When excess coolant falls into the water tank 2, metal debris and impurities are filtered through the filter screen 22 in the mounting frame 21 to ensure the cleanliness of the coolant. The filtered clean coolant re-enters the circulation, improving the service life of the coolant. Lifting the suspension rod 20 can remove the mounting frame 21 and the filter screen 22, making it easy to maintain the filter screen 22.

[0031] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the present invention and should not be construed as limiting the scope of protection of the present invention in any way. Based on this explanation, those skilled in the art can conceive of other specific embodiments of the present invention without creative effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. A gradient pressure cooling device for bearing steel balls, comprising a base plate (1), a water tank (2), a support base (3), a cooling box (4), guide pipes (401), and a conveying structure, wherein the water tank (2) is fixedly connected to the base plate (1), the support base (3) is fixedly connected to the water tank (2), the cooling box (4) is fixedly connected to the support base (3), three guide pipes (401) are connected to the cooling box (4), and a conveying structure is provided on the cooling box (4), characterized in that, It also includes partition plates (5), fixed seats (8), first conduit (9), jet nozzles (10), second conduit (11), direct current nozzles (12), third conduit (13), atomizing nozzles (14), connecting pipes (15), water supply pipes (16), and pipeline pumps (17). Two partition plates (5) are fixedly connected inside the cooling box (4), and three fixed seats (8) are fixedly connected inside the cooling box (4). The first conduit (9) is fixedly connected to the fixed seat (8) located at the front, and multiple jet nozzles (10) are provided on the first conduit (9). The fixed seat located at the rear... (8) is fixedly connected to a third conduit (13), and multiple atomizing nozzles (14) are provided on the third conduit (13). A second conduit (11) is fixedly connected to a fixed seat (8) located between the first conduit (9) and the third conduit (13). Multiple direct current nozzles (12) are provided on the second conduit (11). Connecting pipes (15) are connected to the first conduit (9), the second conduit (11) and the third conduit (13). A pipeline pump (17) is installed on the water storage tank (2). A water delivery pipe (16) is connected between the pipeline pump (17) and the three connecting pipes (15).

2. The bearing steel ball gradient pressure cooling device according to claim 1, characterized in that, The conveying structure includes a mounting ring (6), a conveying rod (7), a servo motor (18), and a pulley assembly (19). The servo motor (18) is mounted on the rear of the base plate (1). Two mounting rings (6) are rotatably arranged on the cooling box (4). The conveying rod (7) is fixedly connected between the two mounting rings (6). A pulley assembly (19) is provided between the mounting ring (6) near the third conduit (13) and the output shaft of the servo motor (18).

3. The bearing steel ball gradient pressure cooling device according to claim 2, characterized in that, It also includes a suspension rod (20), a mounting frame (21) and a filter screen (22). Four suspension rods (20) are suspended on the water storage tank (2), and the mounting frame (21) is fixedly connected between the four suspension rods (20). The filter screen (22) is installed inside the mounting frame (21).

4. A gradient pressure cooling device for bearing steel balls according to claim 3, characterized in that, It also includes foot pads (23), and four foot pads (23) are fixedly connected to the base plate (1).

5. A gradient pressure cooling device for bearing steel balls according to claim 4, characterized in that, It also includes transparent glass (24), which is embedded in the cooling box (4).

6. A gradient pressure cooling device for bearing steel balls according to claim 5, characterized in that, The conveyor rod (7) is spiral-shaped.

Images