Uniform quenching, cooling and conveying device for bearing roller pins

Abstract

The utility model relates to the technical field of heat treatment of bearing needle rollers, in particular to a uniform quenching, cooling and conveying device for bearing needle rollers, which comprises a cooling water tank and a plurality of conveying components arranged in the cooling water tank, the bearing needle rollers are placed in the cooling water tank, one conveying component is horizontally arranged in the cooling water tank, and the other conveying component is horizontally arranged in the cooling water tank. The other transmission assembly is obliquely arranged in the cooling water tank, the transmission assembly comprises a plurality of rotating shafts and a plurality of fixed shafts, the rotating shafts and the fixed shafts are arranged in a staggered manner, the rotating shafts are rotatably arranged in the cooling water tank, the fixed shafts are fixedly arranged in the cooling water tank, and the distance between the rotating shafts and the fixed shafts is smaller than the diameter of a bearing roller pin; the bearing roller pin abuts against the outer surface of the rotating shaft and the outer surface of the fixing shaft, the rotating shaft comprises a shaft body and a spiral blade, the spiral blade is spirally arranged on the outer surface of the shaft body in a protruding mode around the axial direction of the shaft body, the circumferential face of the bearing roller pin abuts against the shaft body, the end of the bearing roller pin abuts against the spiral blade, and the bearing roller pin moves in the axial direction of the fixing shaft.

Description

Technical Field

[0001] This utility model relates to the field of bearing needle roller heat treatment technology, and in particular to a uniform quenching and cooling transmission device for bearing needle rollers. Background Technology

[0002] Bearing needle rollers are components of rolling bearings. They are short, thin, cylindrical parts made of high-strength materials that roll within the bearing to reduce friction and support shaft rotation. Because bearings need to withstand significant rotational friction, the manufacturing quality of the needle rollers greatly affects bearing performance and is a major factor determining bearing lifespan and overall quality. To improve the surface wear resistance of bearing needle rollers, they are typically quenched. This involves directly immersing the bearing needle rollers in a cooling water tank after heat treatment. However, a large number of needle rollers can easily accumulate at the bottom of the cooling water tank, making accurate temperature control difficult and hindering extraction.

[0003] To address the aforementioned technical problems, Chinese patent document CN221544694U discloses a recovery device for quenching bearing needle rollers, comprising a loading pool and a discharge tray located above the loading pool. The loading pool contains symmetrically arranged discharge supports, and multiple discharge troughs are movably arranged between two discharge supports. Each discharge trough has a V-shaped cross-section and a V-groove on its top surface. One discharge trough faces the discharge tray and receives bearing needle rollers. Multiple rotating shafts are rotatably arranged between two discharge supports, and sprockets on these shafts are connected to chains. The two ends of each discharge trough are detachably connected to two chains. This patent can continuously receive quenched bearing needle rollers, preventing them from accumulating at the bottom of the cooling water tank. However, since the bearing needle rollers fall individually over a small area and with a short cooling time, rapid loading and unloading are required. An excessively large cooling water tank not only wastes coolant but also necessitates larger and more numerous motors for transmission, resulting in high energy consumption and production costs.

[0004] Therefore, it is necessary for those skilled in the art to provide a bearing needle roller uniform quenching and cooling transmission device that provides continuous transmission for the falling and cooled bearing needle rollers, thereby reducing the equipment footprint and production costs. Utility Model Content

[0005] The purpose of this invention is to provide a uniform quenching and cooling transmission device for bearing needle rollers, so as to solve the technical problems of difficulty in extracting bearing needle rollers from the cooling water tank, excessive volume of the cooling water tank, and high production cost in the prior art.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a uniform quenching and cooling transmission device for bearing needle rollers, including a cooling water tank and a transmission component disposed in the cooling water tank. The cooling water tank is filled with coolant, and bearing needle rollers are placed in the cooling water tank. Multiple transmission components are provided, one of which is horizontally disposed in the cooling water tank, and another is inclinedly disposed in the cooling water tank. Each transmission component includes a rotating shaft and a fixed shaft. Multiple rotating shafts and fixed shafts are provided and are staggered. The rotating shaft is rotatably disposed in the cooling water tank, and the fixed shaft is fixedly disposed in the cooling water tank. The distance between the rotating shaft and the fixed shaft is smaller than the diameter of the bearing needle rollers. The bearing needle rollers abut against the outer surfaces of the rotating shaft and the fixed shaft. The rotating shaft includes a shaft body and a helical blade. The helical blade is spirally convex around the axial direction of the shaft body on the outer surface of the shaft body. The circumferential surface of the bearing needle rollers abuts against the shaft body, and the end of the bearing needle rollers abuts against the helical blades. The bearing needle rollers move along the axial direction of the fixed shaft.

[0007] Furthermore, there are three rotating shafts and three fixed shafts arranged in an alternating manner. The rotating shafts and fixed shafts are horizontally arranged in the cooling water tank and are located below the horizontal plane of the coolant.

[0008] Furthermore, a drive box is installed on the outer wall of the cooling water pool, and a fixed box is installed on the inner wall of the cooling water pool. A drive motor is provided outside the drive box. One end of the rotating shaft extends into the drive box, and the other end of the rotating shaft extends into the fixed box. The rotating shaft located in the drive box is fixedly connected to the drive shaft of the drive motor. A bearing is provided on the rotating shaft located in the fixed box, and the rotating shaft is rotatably connected to the fixed box.

[0009] Furthermore, the fixed shaft has a shaft diameter at each end, the diameter of which is smaller than the diameter of the fixed shaft, and the distance between the shaft diameter and the rotating shaft is greater than the diameter of the bearing needle roller.

[0010] Furthermore, the cooling water pool is provided with a horizontally arranged transmission component and an inclined transmission component. One end of the inclined transmission component is located below the horizontally arranged transmission component in the cooling water pool, and the other end extends out of the cooling water pool.

[0011] Furthermore, when the transmission component is horizontally positioned within the cooling water tank, the diameter of the fixed shaft near the fixed housing is located outside the fixed housing, while the diameter of the fixed shaft near the drive housing is located inside the drive housing.

[0012] Furthermore, when the transmission component is tilted within the cooling water tank, the diameter of the fixed shaft near the fixed housing is located inside the fixed housing, while the diameter of the fixed shaft near the drive housing is located outside the drive housing.

[0013] The beneficial effects of this invention are as follows: This invention uses a rotating shaft and a fixed shaft arranged side by side to provide a fixed transmission channel for the bearing needle rollers. The alternating dynamic and static driving method provides a stable and controllable transmission speed for the bearing needle rollers, effectively reducing the volume of the cooling water tank and limiting the falling range of the bearing needle rollers. This ensures that the bearing needle rollers can only move according to the set transmission channel, guaranteeing the stability of use and facilitating subsequent loading. Furthermore, by setting two transmission components placed in different positions, this invention allows for more thorough quenching and cooling of the bearing needle rollers. It enables not only rapid quenching but also prolonged cooling. Compared to the longer cooling equipment in the prior art, this invention utilizes the transmission components inclined inside the cooling water tank, fully utilizing the lower part of the cooling water tank, further reducing the footprint of the cooling water tank and ensuring operational stability. Attached Figure Description

[0014] Figure 1 This is a perspective view of the bearing needle roller uniform quenching and cooling transmission device of this utility model.

[0015] Figure 2 This is a top view of the bearing needle roller uniform quenching and cooling transmission device of this utility model.

[0016] Figure 3 yes Figure 2 Sectional view along the middle AA.

[0017] Figure 4 yes Figure 2 A magnified view of part A in the middle.

[0018] Figure 5 yes Figure 2 A magnified view of part B in the middle.

[0019] The components in the attached diagram are labeled as follows: 10, cooling water tank; 11, drive box; 12, fixed box; 13, drive motor; 20, transmission assembly; 21, rotating shaft; 211, shaft body; 212, spiral blade; 22, fixed shaft; 221, journal; 40, bearing needle roller. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0021] Please see Figure 1 , Figure 4This utility model provides a uniform quenching and cooling transmission device for bearing needle rollers, including a cooling water tank 10 and a transmission component 20 disposed within the cooling water tank 10. Multiple transmission components 20 are provided; one transmission component 20 is horizontally disposed within the cooling water tank 10, and another transmission component 20 is inclinedly disposed within the cooling water tank 10. The cooling water tank 10 has a square shell-like structure with an open top and is filled with coolant, including but not limited to water. Bearing needle rollers 40 are placed within the cooling water tank 10. In use, the heat-treated bearing needle rollers 40 fall from above the cooling water tank 10 into the cooling water tank 10, where the cooling water cools the high-temperature bearing needle rollers 40, completing the quenching process. The transmission component 20 within the cooling water tank 10 then transmits the bearing needle rollers 40 out of the cooling water tank 10, completing the recycling process.

[0022] Furthermore, the transmission assembly 20 includes a rotating shaft 21 and a fixed shaft 22. Multiple rotating shafts 21 and fixed shafts 22 are provided and staggered. The rotating shafts 21 are rotatably disposed within the cooling water tank 10, and the fixed shafts 22 are fixedly disposed within the cooling water tank 10. The distance between the rotating shafts 21 and the fixed shafts 22 is less than the diameter of the bearing needle rollers 40. The bearing needle rollers 40 abut against the outer surfaces of the rotating shafts 21 and the fixed shafts 22. In use, the bearing needle rollers 40 fall between the rotating shafts 21 and the fixed shafts 22, and the rotatable rotating shafts 21 push the bearing needle rollers 40 to move axially along the fixed shafts 22, thus achieving transmission.

[0023] In this embodiment, the rotating shaft 21 includes a shaft body 211 and a helical blade 212. The helical blade 212 is helically protruding on the outer surface of the shaft body 211 around the axial direction of the shaft body 211. After the bearing needle roller 40 falls between the rotating shaft 21 and the fixed shaft 22, the circumferential surface of the bearing needle roller 40 abuts against the shaft body 211, and the end of the bearing needle roller 40 abuts against the helical blade 212. Under the rotational push of the helical blade 212, the bearing needle roller 40 moves along the axial direction of the fixed shaft 22.

[0024] In this embodiment, both the rotating shaft 21 and the fixed shaft 22 are made of stainless steel. Three rotating shafts 21 and three fixed shafts 22 are provided and staggered, arranged horizontally within the cooling water tank 10, below the horizontal plane of the coolant. During use, the bearing needle rollers 40 fall onto one end of the rotating shaft 21 and the fixed shaft 22. By rotating the rotating shaft 21, the bearing needle rollers 40 move from one end to the other, providing sufficient cooling time for the bearing needle rollers 40. Furthermore, the cooling time of the bearing needle rollers 40 can be controlled by adjusting the rotational speed of the rotating shaft 21, thereby ensuring stability and product quality.

[0025] Compared to the conveyor belt extraction method used in the prior art, this utility model uses a rotating shaft 21 and a fixed shaft 22 arranged side by side to provide a fixed transmission channel for the bearing needle roller 40. The driving method of one moving and one stationary provides a stable transmission speed for the bearing needle roller 40, effectively reducing the volume of the cooling water tank 10 and limiting the falling range of the bearing needle roller 40. This ensures that the bearing needle roller 40 can only move according to the set transmission channel, guaranteeing the stability of use and facilitating subsequent loading.

[0026] Further, please refer to Figure 2 , Figure 3 , Figure 5 A drive box 11 is installed on the outer wall of the cooling water pool 10, and a fixed box 12 is installed on the inner wall of the cooling water pool 10. A drive motor 13 is provided outside the drive box 11. One end of the rotating shaft 21 extends into the drive box 11, and the other end of the rotating shaft 21 extends into the fixed box 12. The rotating shaft 21 located in the drive box 11 is fixedly connected to the drive shaft of the drive motor 13. The drive motor 13 drives the rotating shaft 21 to rotate. A bearing (not shown in the figure) is provided on the rotating shaft 21 located in the fixed box 12. The rotating shaft 21 is rotatably connected to the fixed box 12 by the bearing to ensure that the rotating shaft 21 rotates stably in the cooling water pool 10.

[0027] The fixed shaft 22 has a shaft diameter 221 at both ends. The diameter of the shaft diameter 221 is smaller than the diameter of the fixed shaft 22. The distance between the shaft diameter 221 and the rotating shaft 21 is larger than the diameter of the bearing needle roller 40. This allows the bearing needle roller 40 to fall off between the fixed shaft 22 and the rotating shaft 21 when it moves to the shaft diameter 221, thus achieving material discharge.

[0028] Understandably, to ensure adequate cooling, when the heat-treated bearing needle rollers 40 fall from above the cooling water tank 10 into the cooling water tank 10, they should be kept away from the shaft diameter 221 to prevent them from being discharged without being cooled.

[0029] In this embodiment, the cooling water tank 10 is provided with a horizontally arranged transmission component 20 and an inclinedly arranged transmission component 20. The transmission component 20 horizontally arranged in the cooling water tank 10 has a fixed shaft 22 whose shaft diameter 221 near the fixed box 12 is located outside the fixed box 12, and a fixed shaft diameter 221 near the drive box 11 is located inside the drive box 11. In use, the bearing needle roller 40 moves from one end near the drive box 11 to one end near the fixed box 12. Before the bearing needle roller 40 is cooled, it will not fall off between the fixed shaft 22 and the rotating shaft 21. Only after cooling is completed can the bearing needle roller 40 smoothly fall off between the fixed shaft 22 and the rotating shaft 21, so as to achieve orderly loading and unloading.

[0030] A transmission component 20, inclined within the cooling water tank 10, has one end positioned below a horizontally positioned transmission component 20 within the cooling water tank 10, while the other end extends outside the cooling water tank 10. One end of the inclined transmission component 20 receives the bearing needle roller 40, and the other end extracts the bearing needle roller 40 from the cooling water tank 10 and transmits it outside, thus achieving cooling transmission. This invention, by setting two transmission components 20 at different positions, allows for more thorough quenching and cooling of the bearing needle roller 40. It enables both rapid quenching and prolonged cooling. Compared to longer cooling devices in the prior art, this invention, utilizing the inclined transmission component 20 within the cooling water tank 10, fully utilizes the lower space of the cooling water tank 10, further reducing the footprint of the cooling water tank 10 and ensuring operational stability.

[0031] In this embodiment, the transmission assembly 20, which is inclinedly arranged in the cooling water tank 10, has a fixed shaft 22 whose shaft diameter 221 near the fixed box 12 is located inside the fixed box 12, and a fixed shaft diameter 221 near the drive box 11 is located outside the drive box 11. In use, the bearing needle roller 40 moves from one end near the fixed box 12 to one end near the drive box 11. Before the bearing needle roller 40 is removed, it will not fall off between the fixed shaft 22 and the rotating shaft 21. Only after the bearing needle roller 40 is removed from the cooling water tank 10 can it smoothly fall off between the fixed shaft 22 and the rotating shaft 21 to complete the material picking and oil filtering operation.

[0032] Understandably, the shaft diameter 221 at the fixed box 12 is mainly used for material discharge. It is avoided to set it at the material feeding part of the bearing needle roller 40, so that when the bearing needle roller 40 is feeding, it can be directly and stably located between the rotating shaft 21 and the fixed shaft 22.

[0033] In other embodiments, there may be only one horizontally arranged transmission component 20 or only one inclined transmission component 20. The transmission component 20 is submerged in the coolant inside the cooling water tank 10, and one end with the shaft diameter 221 extends to the outside of the cooling water tank 10, so as to achieve quenching and cooling of the bearing needle roller 40.

[0034] The specific operation method of this utility model is as follows: Step 1: The heat-treated bearing needle roller 40 is dropped from above the cooling water tank 10 into the cooling water tank 10, and the high-temperature bearing needle roller 40 is cooled by the cooling water in the cooling water tank 10 to complete the quenching.

[0035] Step 2: The bearing needle rollers 40 in the cooling water tank 10 are transported to the middle of the cooling water tank 10 using the horizontally arranged transmission component 20, so that the bearing needle rollers 40 fall into the cooling water tank 10 for further cooling.

[0036] Step 3: Using the inclined transmission component 20 inside the cooling water tank 10, the bearing needle rollers 40 inside the cooling water tank 10 are transferred to the outside of the cooling water tank 10 to complete the recycling and extraction.

[0037] This invention employs a rotating shaft 21 and a fixed shaft 22 arranged side-by-side to provide a fixed transmission channel for the bearing needle rollers 40. The alternating dynamic and static driving method provides a stable and controllable transmission speed for the bearing needle rollers 40, effectively reducing the volume of the cooling water tank 10 and limiting the descent range of the bearing needle rollers 40. This ensures that the bearing needle rollers 40 can only move along the pre-set transmission channel, guaranteeing operational stability and facilitating subsequent loading. Furthermore, by setting two transmission components 20 at different positions, this invention allows for more thorough quenching and cooling of the bearing needle rollers 40. It enables both rapid quenching and prolonged cooling. Compared to the longer cooling equipment in the prior art, this invention utilizes the transmission components 20, which are inclined and positioned inside the cooling water tank 10, to fully utilize the lower space of the cooling water tank 10, further reducing its footprint and ensuring operational stability.

[0038] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A uniform quenching and cooling transfer device for bearing needle rollers, comprising a cooling water tank (10) and a transfer assembly (20) disposed within the cooling water tank (10), wherein the cooling water tank (10) is filled with coolant and bearing needle rollers (40) are placed within the cooling water tank (10), characterized in that, Multiple transmission components (20) are provided. One transmission component (20) is horizontally arranged in the cooling water tank (10), and another transmission component (20) is inclinedly arranged in the cooling water tank (10). Each transmission component (20) includes a rotating shaft (21) and a fixed shaft (22). Multiple rotating shafts (21) and fixed shafts (22) are provided and are arranged alternately. The rotating shaft (21) is rotatably arranged in the cooling water tank (10), and the fixed shaft (22) is fixedly arranged in the cooling water tank (10). The rotating shaft (21) and the fixed shaft (22) are arranged in a staggered manner. The spacing between them is less than the diameter of the bearing needle (40). The bearing needle (40) abuts against the outer surfaces of the rotating shaft (21) and the fixed shaft (22). The rotating shaft (21) includes a shaft body (211) and a spiral blade (212). The spiral blade (212) is spirally protruding around the axial direction of the shaft body (211) on the outer surface of the shaft body (211). The circumferential surface of the bearing needle (40) abuts against the shaft body (211). The end of the bearing needle (40) abuts against the spiral blade (212). The bearing needle (40) moves along the axial direction of the fixed shaft (22).

2. The bearing needle roller uniform quenching and cooling transmission device according to claim 1, characterized in that, The rotating shaft (21) and the fixed shaft (22) are each provided in three and staggered. The rotating shaft (21) and the fixed shaft (22) are arranged horizontally in the cooling water pool (10) and are located below the horizontal plane of the coolant.

3. The bearing needle roller uniform quenching and cooling transmission device according to claim 1, characterized in that, A drive box (11) is installed on the outer wall of the cooling water pool (10), and a fixed box (12) is installed on the inner wall of the cooling water pool (10). A drive motor (13) is provided outside the drive box (11). One end of the rotating shaft (21) extends into the drive box (11), and the other end of the rotating shaft (21) extends into the fixed box (12). The rotating shaft (21) located in the drive box (11) is fixedly connected to the drive shaft of the drive motor (13). A bearing is provided on the rotating shaft (21) located in the fixed box (12). The rotating shaft (21) is rotatably connected to the fixed box (12).

4. The bearing needle roller uniform quenching and cooling transmission device according to claim 3, characterized in that, The fixed shaft (22) has a shaft diameter (221) at both ends. The diameter of the shaft diameter (221) is smaller than the diameter of the fixed shaft (22), and the distance between the shaft diameter (221) and the rotating shaft (21) is greater than the diameter of the bearing needle roller (40).

5. The bearing needle roller uniform quenching and cooling transmission device according to claim 4, characterized in that, The cooling water pool (10) is provided with a horizontally arranged transmission component (20) and an inclinedly arranged transmission component (20). One end of the inclinedly arranged transmission component (20) is located below the horizontally arranged transmission component (20) in the cooling water pool (10), and the other end extends out of the outside of the cooling water pool (10).

6. The bearing needle roller uniform quenching and cooling transmission device according to claim 5, characterized in that, When the transmission assembly (20) is horizontally set in the cooling water tank (10), the shaft diameter (221) of the fixed shaft (22) near the fixed box (12) is located outside the fixed box (12), and the shaft diameter (221) of the fixed shaft (22) near the drive box (11) is located inside the drive box (11).

7. The bearing needle roller uniform quenching and cooling transmission device according to claim 5, characterized in that, When the transmission assembly (20) is tilted inside the cooling water tank (10), the shaft diameter (221) of the fixed shaft (22) near the fixed box (12) is located inside the fixed box (12), and the shaft diameter (221) of the fixed shaft (22) near the drive box (11) is located outside the drive box (11).

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