Cooling structure of ball screw

Abstract

The utility model provides a cooling structure of a ball screw, which relates to the technical field of mechanical transmission component cooling and comprises a mounting frame, two bearing seats are fixedly mounted at the top of the mounting frame, a ball screw body is fixedly inserted between the interiors of the two bearing seats, and a heat conduction groove is formed in one side of the outer wall of the ball screw body. And the outer surface wall of the ball screw body fixedly communicates with two rotating joints. According to the cooling device for the ball screw, efficient heat dissipation of the ball screw is achieved under the interaction of all the components of the device, it is guaranteed that the temperature of the ball screw is stable and controllable in the using process, cooling water can accurately cool key parts in the ball screw in the circulating flowing process, and the service life of the ball screw is prolonged. And meanwhile, the cooling water absorbing heat is subjected to real-time heat dissipation treatment through the external heat dissipation module, it is ensured that the cooling water flowing circularly keeps a low enthalpy value all the time, and therefore heat generated by operation of the lead screw is continuously and efficiently taken away.

Description

Technical Field

[0001] This utility model relates to the field of cooling technology for mechanical transmission components, and in particular to a cooling structure for a ball screw. Background Technology

[0002] A ball screw is a precision transmission element that efficiently converts rotary motion into linear motion, or vice versa. It consists of a screw, nut, and balls, and achieves low-friction, high-precision transmission through the rolling of the balls.

[0003] During the operation of a ball screw, a large amount of heat is generated due to the friction between the balls, the screw, and the nut. This leads to thermal deformation of the screw, a decrease in transmission accuracy, and increased wear of components. Therefore, a heat dissipation structure is needed to control the temperature and ensure operational stability and accuracy. The cooling structure of a ball screw generally conducts heat through the good thermal conductivity of the material itself or uses a fan for forced convection cooling, thereby quickly removing heat and achieving efficient heat dissipation.

[0004] However, the existing cooling structure of ball screws has the following shortcomings:

[0005] In the existing technology, the common ball screw cooling structures are mainly natural cooling and external air cooling. Natural cooling relies on the natural convection of air to dissipate heat, which has extremely low cooling efficiency and is difficult to meet the heat dissipation requirements of ball screws that operate at high speed and for long periods of time. External air cooling uses equipment such as fans to force convection to dissipate heat, but this method is greatly affected by environmental factors and has limited heat dissipation effect, and cannot effectively cool the key parts inside the ball screw.

[0006] Therefore, we propose a cooling structure for ball screws to address the problems mentioned above. Utility Model Content

[0007] The purpose of this invention is to provide a cooling structure for ball screws. By utilizing a circulating pump and a closed-loop circulation structure of the piping assembly, cooling water can form a stable forced circulation flow inside the ball screw, continuously cooling the ball screw. Subsequently, through the forced convection effect of the fan assembly and the efficient heat exchange area expansion of the heat dissipation fins, the cooling water that has absorbed heat can quickly exchange heat and cool down, thereby solving the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model adopts the following technical solution: a cooling structure for a ball screw, including a mounting bracket. Two bearing seats are fixedly mounted on the top of the mounting bracket. A ball screw body is fixedly inserted between the interiors of the two bearing seats. A heat-conducting groove is formed on one side of the outer wall of the ball screw body. Two rotary joints are fixedly connected to the outer wall of the ball screw body. Two fixing plates are fixedly connected to the top of the mounting bracket, and the outer walls of the two rotary joints are fixedly inserted into the interiors of the two fixing plates. A water inlet pipe is fixedly connected to the input end of one of the two rotary joints. A circulating pump is fixedly connected to the pump. A connecting pipe is fixedly connected to the pump's input end. A water tank is fixedly connected to one side of the connecting pipe's outer wall. The outer wall of the mounting bracket is fixedly connected to one side of the water tank's outer wall. The output end of the other of the two rotary joints is fixedly connected to a water outlet pipe. A heat dissipation pipe is fixedly connected to the outlet pipe's output end. Heat dissipation fins are fixedly fitted onto the outer wall of the heat dissipation pipe. A fixing frame is fixedly connected to one side of the mounting bracket's outer wall. Three cooling fans are fixedly installed on one side of the fixing frame's outer wall. A delivery pipe is fixedly connected to the heat dissipation pipe's output end. The output end of the delivery pipe is fixedly connected to one side of the water tank's outer wall.

[0009] Preferably, a ball nut is threaded onto the outer wall of the ball screw body, a connecting block is fixedly sleeved on the outer wall of the ball nut, two guide rails are fixedly installed on the top of the mounting bracket, a slider is movably sleeved between the outer walls of the two guide rails, and the top of the connecting block is fixedly connected to the bottom of the slider.

[0010] Preferably, a placement rack is fixedly connected to one side of the outer wall of the fixed frame, and two mounting slots are provided on one side of the outer wall of the placement rack.

[0011] Preferably, a return spring is fixedly connected to the inner wall of each of the two mounting slots, and a movable plate is fixedly connected to the outer wall of each of the two return springs.

[0012] Preferably, both the placement rack and the movable plate have slots on one side of their outer walls, and the outer walls of both slots are fitted with locking blocks.

[0013] Preferably, a dustproof plate is fixedly connected between one side of the outer wall of the two card blocks, and a drive motor is fixedly connected to the top of the mounting bracket.

[0014] Preferably, pulleys are fixedly fitted on the outer walls of both the ball screw body and the drive motor, and a transmission belt is movably fitted between the outer walls of the two pulleys.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, through the interaction of the various components of the device, the closed-loop circulation structure of the circulating pump and pipeline components enables the cooling water to form a stable forced circulation flow inside the ball screw, continuously cooling the ball screw. Subsequently, through the forced convection effect of the fan assembly and the efficient heat exchange area expansion of the heat dissipation fins, the cooling water that has absorbed heat can quickly exchange heat and cool down. Through this closed-loop cooling method, the ball screw achieves efficient heat dissipation, ensuring that its temperature is stable and controllable during use. The cooling water can precisely cool the key parts inside the ball screw during circulation. At the same time, the external heat dissipation module performs real-time heat dissipation treatment on the cooling water that has absorbed heat, ensuring that the circulating cooling water always maintains a low enthalpy value, thereby continuously and efficiently removing the heat generated by the operation of the screw.

[0017] 2. In this utility model, through the interaction of the various components of the device, the dustproof plate can effectively prevent dust from accumulating and adhering on the surface of the fan component, heat dissipation fins and heat dissipation pipes by efficiently filtering the air entering the fan component. This avoids the reduction in heat dissipation efficiency due to the formation of a heat insulation layer caused by dust accumulation. Furthermore, the dustproof plate is easy to disassemble and assemble. When the filter screen accumulates dust and affects the ventilation efficiency, the operator can quickly disassemble, clean or replace it, thereby reducing the difficulty of equipment maintenance. Attached Figure Description

[0018] Figure 1 A front view perspective view of a cooling structure for a ball screw is provided for this utility model.

[0019] Figure 2 This utility model provides a three-dimensional exploded view of a portion of the cooling structure of a ball screw.

[0020] Figure 3 A top-view perspective exploded view of a portion of the cooling structure of a ball screw, as proposed in this utility model.

[0021] Figure 4 This invention provides a partial side-view perspective exploded view of a cooling structure for a ball screw.

[0022] Legend: 1. Mounting bracket; 2. Bearing seat; 3. Ball screw body; 4. Heat conduction groove; 5. Rotary joint; 6. Fixing plate; 7. Water inlet pipe; 8. Circulation pump; 9. Connecting pipe; 10. Water tank; 11. Water outlet pipe; 12. Heat dissipation pipe; 13. Heat dissipation fins; 14. Fixing bracket; 15. Heat dissipation fan; 16. Delivery pipe; 17. Ball nut; 18. Connecting block; 19. Guide rail; 20. Slider; 21. Placement rack; 22. Mounting groove; 23. Return spring; 24. Moving plate; 25. Slot; 26. Locking block; 27. Dustproof plate; 28. Drive motor; 29. ​​Pulley; 30. Transmission belt. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Example 1, as shown in the attached document Figure 1 -Appendix Figure 4 As shown, this utility model provides a technical solution: a cooling structure for a ball screw, including a mounting bracket 1. Two bearing seats 2 are fixedly mounted on the top of the mounting bracket 1. A ball screw body 3 is fixedly inserted between the interiors of the two bearing seats 2. A heat-conducting groove 4 is formed on one side of the outer wall of the ball screw body 3. Two rotary joints 5 are fixedly connected to the outer wall of the ball screw body 3. Two fixing plates 6 are fixedly connected to the top of the mounting bracket 1, and the outer walls of the two rotary joints 5 are fixedly inserted into the interiors of the two fixing plates 6. A water inlet pipe 7 is fixedly connected to the input end of one of the two rotary joints 5. A circulation pump 8 is fixedly connected to the input end of the water inlet pipe 7. The input end of 8 is fixedly connected to a connecting pipe 9. A water tank 10 is fixedly connected to one side of the outer wall of the connecting pipe 9. The outer wall of the mounting bracket 1 is fixedly connected to the outer wall of the water tank 10. The output end of the other of the two rotary joints 5 is fixedly connected to a water outlet pipe 11. The output end of the water outlet pipe 11 is fixedly connected to a heat dissipation pipe 12. Heat dissipation fins 13 are fixedly fitted on the outer wall of the heat dissipation pipe 12. A fixing bracket 14 is fixedly connected to one side of the outer wall of the mounting bracket 1. Three cooling fans 15 are fixedly installed on one side of the outer wall of the fixing bracket 14. The output end of the heat dissipation pipe 12 is fixedly connected to a conveying pipe 16. The output end of the conveying pipe 16 is fixedly connected to the outer wall of the water tank 10.

[0026] The overall effect achieved by Embodiment 1 is as follows: During use, when it is necessary to cool the ball screw body 3 to control the temperature and ensure transmission accuracy, the circulation pump 8 is started first. After the circulation pump 8 starts, it draws out the cooling water inside the water tank 10 and pressurizes it, so that it enters the heat conduction groove 4 inside the ball screw body 3 through the water inlet pipe 7. When the cooling water flows inside the ball screw body 3, it can absorb the heat generated by friction. The ball screw body 3 is made of alloy structural steel material with good thermal conductivity, which can efficiently conduct heat. With the help of the rotation of the bearings inside the two rotary joints 5, the screw does not drive the rotary joints 5 to rotate when it rotates. The cooling water that has absorbed heat then flows through the water outlet pipe. 11 flows into the heat sink 12. At this time, three cooling fans 15 are started, and the heat dissipation area of ​​the heat sink 12 can be increased through the heat dissipation fins 13. After the three cooling fans 15 are started, they generate a strong airflow to force the heat sink fins 13 and the heat sink 12 to cool down the cooling water that absorbs heat inside the heat sink 12. The heat sink 12 is made of copper material with good heat dissipation performance. After the cooling water is cooled, it flows into the water tank 10 through the delivery pipe 16. Under the continuous drive of the circulation pump 8, the cooling water circulates to cool down the ball screw body 3, thereby effectively controlling the screw temperature and ensuring that the screw maintains a stable working state and high-precision transmission performance during use.

[0027] Example 2, as Figure 2-4 As shown, a ball nut 17 is threaded onto the outer wall of the ball screw body 3. A connecting block 18 is fixedly sleeved on the outer wall of the ball nut 17. Two guide rails 19 are fixedly mounted on the top of the mounting bracket 1. A slider 20 is movably sleeved between the outer walls of the two guide rails 19. The top of the connecting block 18 is fixedly connected to the bottom of the slider 20. A placement bracket 21 is fixedly connected to one side of the outer wall of the fixing bracket 14. Two mounting grooves 22 are opened on one side of the outer wall of the placement bracket 21. A return spring is fixedly connected to the inner surface of each of the two mounting grooves 22. Spring 23, the outer walls of the two return springs 23 are fixedly connected to the movable plate 24, the outer wall of the placement frame 21 and the movable plate 24 are both provided with a slot 25, the outer wall of the two slots 25 is movably fitted with a block 26, the outer wall of the two blocks 26 is fixedly connected with a dustproof plate 27, the top of the mounting frame 1 is fixedly connected to the drive motor 28, the outer wall of the ball screw body 3 and the drive motor 28 are both fixedly fitted with pulleys 29, and the outer wall of the two pulleys 29 is movably fitted with a transmission belt 30.

[0028] The overall effect of Embodiment 2 is as follows: When the fan assembly is dissipating heat through air convection, the dustproof plate 27 can efficiently filter the air and effectively intercept dust particles, thereby preventing dust from accumulating and adhering on the surface of the heat dissipation fins 13 and heat dissipation pipes 12, and avoiding a decrease in heat dissipation efficiency due to dust accumulation. When the dustproof plate 27 needs to be cleaned or replaced due to dust accumulation and blockage affecting the filtration effect, simply pull the moving plate 24. The moving plate 24 slides to disengage the locking block 26 from the internal locking slot 25, which can quickly release the fixed state of the dustproof plate 27, making it easy to clean, maintain or replace. During the movement of the moving plate 24, the two return springs 23 will be stretched. When the dustproof plate 27 is reinstalled, the elastic return force of the return springs 23 is used to push the locking block 26 to accurately lock into the corresponding locking slot 25, ensuring that the dustproof plate 27 is firmly installed and does not loosen during use, and continues to play its dustproof role.

[0029] The working principle of the entire device is as follows: During use, an appropriate amount of cooling water is first injected into the water tank 10. When cooling of the ball screw body 3 is required to control temperature and ensure transmission accuracy, the circulation pump 8 is started. The circulation pump 8 pressurizes the cooling water in the water tank 10 and then delivers it through the inlet pipe 7 to the heat conduction groove 4 inside the ball screw body 3. During the flow of the cooling water within the heat conduction groove 4, it absorbs the heat generated by friction of the screw. The ball screw body 3 is made of alloy structural steel, ensuring efficient heat transfer to the cooling water. The rotation of the bearing inside the rotary joint 5 allows the screw to rotate while the joint remains fixed, preventing pipe entanglement. The cooled water, after absorbing heat, flows into the heat dissipation pipe 12 through the outlet pipe 11. At this time, three cooling fans 15 are started. The densely distributed heat dissipation fins 13 increase the heat dissipation area of ​​the heat dissipation pipe 12, and the powerful airflow generated by the three cooling fans 15 forces air cooling of the fins and heat dissipation pipe 12, thus cooling the water... Rapid cooling is achieved through the use of copper in the heat dissipation pipe 12, which further enhances heat dissipation efficiency. The cooled water flows back to the water tank 10 through the delivery pipe 16, forming a closed-loop circulation to continuously cool the lead screw, ensuring that the lead screw maintains stable working accuracy even in high-temperature environments. When the fan assembly circulates air for heat dissipation, the dustproof plate 27 filters the intake air, intercepting dust particles and preventing them from accumulating on the surface of the heat dissipation fins 13 and heat dissipation pipes 12, thus avoiding a decrease in heat dissipation efficiency due to dust accumulation. When the dustproof plate 27 needs to be cleaned or replaced due to dust accumulation affecting ventilation, the moving plate 24 is pulled to disengage the locking block 26 from the slot 25, allowing for quick disassembly after the fixed state is released. The moving plate 24 stretches the return spring 23 to accumulate elastic potential energy. During reinstallation, the elastic return force of the two return springs 23 causes the locking block 26 to engage inside the slot 25, ensuring that the dustproof plate 27 is stable and reliable, and continues to perform its dustproof function.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A cooling structure for a ball screw, characterized in that: The system includes a mounting bracket (1), on which two bearing seats (2) are fixedly mounted. A ball screw body (3) is fixedly inserted between the two bearing seats (2). A heat-conducting groove (4) is provided on one side of the outer wall of the ball screw body (3). Two rotary joints (5) are fixedly connected to the outer wall of the ball screw body (3). Two fixing plates (6) are fixedly connected to the top of the mounting bracket (1), and the outer walls of the two rotary joints (5) are fixedly inserted into the two fixing plates (6). A water inlet pipe (7) is fixedly connected to the input end of one of the two rotary joints (5). A circulation pump (8) is fixedly connected to the input end of the water inlet pipe (7). A connecting pipe (9) is fixedly connected to the input end of the circulation pump (8). The outer wall of the connecting pipe (9) is fixedly connected to a water tank (10), and the outer wall of the mounting bracket (1) is fixedly connected to the outer wall of the water tank (10). The output end of one of the two rotary joints (5) is fixedly connected to a water outlet pipe (11). The output end of the water outlet pipe (11) is fixedly connected to a heat dissipation pipe (12). The outer wall of the heat dissipation pipe (12) is fixedly fitted with heat dissipation fins (13). The outer wall of the mounting bracket (1) is fixedly connected to a fixing bracket (14). The outer wall of the fixing bracket (14) is fixedly installed with three heat dissipation fans (15). The output end of the heat dissipation pipe (12) is fixedly connected to a conveying pipe (16), and the output end of the conveying pipe (16) is fixedly connected to the outer wall of the water tank (10).

2. The cooling structure for a ball screw according to claim 1, characterized in that: The outer wall of the ball screw body (3) is threaded with a ball nut (17), and a connecting block (18) is fixedly sleeved on the outer wall of the ball nut (17). Two guide rails (19) are fixedly installed on the top of the mounting bracket (1). A slider (20) is movably sleeved between the outer walls of the two guide rails (19), and the top of the connecting block (18) is fixedly connected to the bottom of the slider (20).

3. The cooling structure for a ball screw according to claim 2, characterized in that: A placement rack (21) is fixedly connected to one side of the outer wall of the fixed frame (14), and two mounting slots (22) are opened on one side of the outer wall of the placement rack (21).

4. The cooling structure for a ball screw according to claim 3, characterized in that: A return spring (23) is fixedly connected to the inner wall of each of the two mounting slots (22), and a movable plate (24) is fixedly connected to the outer wall of each of the two return springs (23).

5. The cooling structure for a ball screw according to claim 4, characterized in that: The outer wall of both the placement rack (21) and the movable plate (24) is provided with a slot (25), and the outer wall of both slots (25) is movably fitted with a locking block (26).

6. The cooling structure for a ball screw according to claim 5, characterized in that: A dustproof plate (27) is fixedly connected between one side of the outer wall of the two card blocks (26), and a drive motor (28) is fixedly connected to the top of the mounting bracket (1).

7. The cooling structure for a ball screw according to claim 6, characterized in that: Both the ball screw body (3) and the drive motor (28) are fixedly fitted with pulleys (29), and a transmission belt (30) is movably fitted between the outer walls of the two pulleys (29).

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