A split ball nut

Abstract

This utility model relates to the field of nut technology and discloses a split ball nut, including a ball nut and two reversers. Both reversers are fixedly installed inside the ball nut. Dustproof rings are installed at both ends of the ball nut. Five heat dissipation fins are fixedly connected to the lower surface of the ball nut. Each of the five heat dissipation fins has a coolant groove inside. A connecting pipe is fixedly installed at the right end of each of the five heat dissipation fins. Connecting grooves are formed on the far surfaces of the two dustproof rings. Felt rings are fixedly connected inside the two connecting grooves. The connecting pipes communicate with the interior of the five coolant grooves. A first connecting pipe is fixedly installed on the front surface of the frontmost heat dissipation fin. Through the circulation of the heat dissipation fins and coolant, efficient cooling is achieved, preventing thermal deformation and grease failure. The felt rings can absorb fine dust and retain grease, working in conjunction with the dustproof rings for more effective dust prevention, reducing wear on the ball nut and extending its lifespan.

Description

Technical Field

[0001] This utility model relates to the field of nut technology, specifically a split ball nut. Background Technology

[0002] The ball nut is the core component of the ball screw transmission system. It works with the screw to convert rotary motion into linear motion. It can achieve high-precision positioning and eliminate backlash through the preload structure. It is widely used in CNC machine tools, robots, precision instruments and other equipment. According to the structure, it is divided into single nuts and double nuts. Double nuts are preloaded by means of washers, threads and other methods to meet higher precision requirements. It is a key component of modern precision transmission.

[0003] Currently, when ball nuts are used, under high-speed operating conditions, the balls and raceways of the ball nut generate a large amount of heat due to continuous rolling friction. This heat easily accumulates inside the nut, causing abnormal temperature rise. Excessive temperature can cause thermal deformation of the nut and lead screw, destroying the originally precise fit clearance and directly affecting the transmission positioning accuracy. At the same time, high temperature will accelerate the deterioration and failure of lubricating grease, aggravate wear on the metal surface, and cause pitting, peeling and other damage to the raceway, significantly shortening the service life of the lead screw and nut, and posing a serious threat to the stable operation of precision machinery. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a split-type ball nut, which solves the problem that under high-speed operating conditions, the continuous rolling friction between the balls and raceways of the ball nut generates a large amount of heat, which easily accumulates inside the nut, leading to abnormally high temperatures. Excessive temperatures can cause thermal deformation of the nut and the lead screw, damaging the originally precise fit clearance and directly affecting the transmission positioning accuracy. At the same time, high temperatures accelerate the deterioration and failure of lubricating grease, exacerbate wear on the metal surface, and cause pitting, peeling, and other damage to the raceway, significantly shortening the service life of the lead screw and nut, and posing a serious threat to the stable operation of precision machinery.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a split ball nut, comprising a ball nut and two reversers, both of which are fixedly installed inside the ball nut, and dustproof rings are installed at both ends of the ball nut.

[0008] Five heat dissipation fins are fixedly connected to the lower surface of the ball nut. Each of the five heat dissipation fins has a coolant groove inside. A connecting pipe is fixedly installed at the right end of each of the five heat dissipation fins. A connecting groove is opened on the far side of the two dustproof rings. A felt ring is fixedly connected inside the two connecting grooves.

[0009] Preferably, the connecting pipe communicates with the interior of the five coolant tanks.

[0010] Preferably, a first connecting pipe is fixedly installed on the front surface of the frontmost heat dissipation fin, and the first connecting pipe communicates with the interior of the frontmost coolant tank.

[0011] Preferably, a second connecting pipe is fixedly installed on the rear surface of the last heat dissipation fin, and the second connecting pipe communicates with the interior of the coolant tank on the last side.

[0012] Preferably, the right surface of the ball nut has six mounting holes.

[0013] Preferably, the six mounting holes are divided into two groups and are opened in a vertically corresponding manner.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a split ball nut, which has the following advantages:

[0016] 1. This split-type ball nut uses a combination of heat dissipation fins and coolant circulation for efficient cooling, preventing thermal deformation and grease failure; the felt ring can absorb fine dust and retain grease, working in conjunction with the dustproof ring for more effective dust prevention, reducing wear on the ball nut and extending its lifespan. Attached Figure Description

[0017] Figure 1 This is a top view schematic diagram of the overall structure of the split ball nut of this utility model;

[0018] Figure 2 This is a side view of the overall structure of the split ball nut of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal cross-section of the split ball nut of this utility model from a bottom view.

[0020] Figure 4 This is a bottom view of the internal cross-section of the heat dissipation fins of this utility model.

[0021] In the diagram: 1. Ball bearing nut; 2. Reversing device; 3. Dustproof ring; 4. Heat dissipation fins; 5. Coolant tank; 6. Connecting pipe; 7. Connecting groove; 8. Felt ring; 9. First connecting pipe; 10. Second connecting pipe; 11. Mounting hole. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4 This utility model provides a new technical solution: a split ball nut, including a ball nut 1 and two reversers 2, both of which are fixedly installed inside the ball nut 1, and dustproof rings 3 are installed at both the left and right ends of the ball nut 1.

[0024] Five heat dissipation fins 4 are fixedly connected to the lower surface of the ball nut 1. Coolant grooves 5 are opened inside the five heat dissipation fins 4. A connecting pipe 6 is fixedly installed at the right end of the five heat dissipation fins 4. Connecting grooves 7 are opened on the far surfaces of the two dust rings 3. Felt rings 8 are fixedly connected inside the two connecting grooves 7.

[0025] Furthermore, the heat dissipation fins 4, combined with the coolant circulation, achieve efficient cooling and prevent thermal deformation and grease failure. The felt ring 8 can absorb fine dust and retain grease, working in conjunction with the dustproof ring for more effective dust prevention, reducing wear on the ball nut and extending its lifespan.

[0026] Furthermore, the connecting pipe 6 is connected to the interior of the five coolant tanks 5.

[0027] Furthermore, a first connecting pipe 9 is fixedly installed on the front surface of the frontmost heat dissipation fin 4, and the first connecting pipe 9 is connected to the interior of the frontmost coolant tank 5.

[0028] Furthermore, a second connecting pipe 10 is fixedly installed on the rear surface of the last heat dissipation fin 4, and the second connecting pipe 10 is connected to the interior of the coolant tank 5 on the last side.

[0029] Furthermore, the right surface of the ball nut 1 has six mounting holes 11.

[0030] Furthermore, the six mounting holes 11 are divided into two groups and are opened in a corresponding manner, one above the other.

[0031] Furthermore, during use, the ball nut 1 is first fixed to the equipment through the six mounting holes 11 on the right surface. When running at high speed, the external cooling component is connected to the first connecting pipe 9 and the second connecting pipe 10, and coolant is pumped in. The coolant circulates in the coolant tank 5 of the five heat dissipation fins 4 through the connecting pipe 6, carrying away heat. The dustproof ring 3 and the felt ring 8 prevent foreign objects from entering.

[0032] Structural Description:

[0033] Ball nut 1: This is the main component of the split ball nut. It has two reversers 2 installed inside, dust rings 3 installed at both ends, heat dissipation fins 4 connected to the lower surface, and six mounting holes 11 on the right surface, providing a mounting base for each component. It is the core carrier for realizing transmission.

[0034] Reversing device 2: There are two in total, both fixed inside the ball nut 1. Its function is to guide the ball to circulate in the raceway, ensuring that the ball can smoothly enter the circulation channel from the working raceway, and ensuring continuous and stable transmission.

[0035] Dustproof ring 3: Installed on both ends of ball nut 1, with connecting grooves 7 on the opposite surfaces, and felt ring 8 inside, which can block external dust and impurities from entering the nut, and enhance the sealing and dustproof effect in conjunction with the felt ring 8.

[0036] Heat dissipation fins 4: There are five in total, fixed on the lower surface of ball nut 1, with a coolant tank 5 inside and a connecting pipe 6 installed at the right end, which can increase the heat dissipation area and, together with the coolant in the coolant tank 5, efficiently dissipate the heat generated by the nut during operation.

[0037] Coolant tank 5: It is located inside the five heat dissipation fins 4 and is connected to the connecting pipe 6, the first connecting pipe 9, and the second connecting pipe 10. It allows coolant to circulate and remove the heat transferred by the heat dissipation fins 4 through coolant circulation, thereby achieving cooling.

[0038] Connecting pipe 6: Fixed at the right end of the five heat dissipation fins 4, communicating with the inside of the five coolant tanks 5, serving to connect the coolant tanks 5 inside each heat dissipation fin 4, so that the coolant can circulate smoothly in multiple tanks.

[0039] Connecting groove 7: It is opened on the surfaces of the two dustproof rings 3 that are far apart, and the felt ring 8 is fixed inside it. It provides an installation position for the felt ring 8 and ensures that the felt ring 8 can be stably installed on the dustproof ring 3 so that they can work together to play a dustproof role.

[0040] Felt ring 8: Fixed inside the two connecting grooves 7, it is soft and has a certain degree of adsorption, which can further prevent fine dust from entering, while maintaining a small amount of lubricant to help reduce friction;

[0041] First connecting pipe 9: installed on the front surface of the frontmost heat dissipation fin 4, communicating with the coolant tank 5 of the heat dissipation fin 4, and can be connected to external cooling components, serving as one of the channels for coolant to enter the coolant tank 5;

[0042] The second connecting pipe 10 is installed on the rear surface of the last heat dissipation fin 4 and communicates with the coolant tank 5 of the heat dissipation fin 4. It can connect to external cooling components and is the channel for coolant to flow out of the coolant tank 5 to achieve circulation.

[0043] Mounting holes 11: There are six in total, which are opened in two groups on the right surface of the ball nut 1, one above the other, for connecting the ball nut 1 to other components with bolts to ensure its stable installation.

[0044] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A split-type ball nut, characterized in that: It includes a ball nut (1) and two reversers (2), both of which are fixedly installed inside the ball nut (1). Dust rings (3) are installed on both the left and right ends of the ball nut (1). Five heat dissipation fins (4) are fixedly connected to the lower surface of the ball nut (1). Cooling liquid grooves (5) are opened inside the five heat dissipation fins (4). A connecting pipe (6) is fixedly installed at the right end of the five heat dissipation fins (4). Connecting grooves (7) are opened on the far surfaces of the two dust rings (3). Felt rings (8) are fixedly connected inside the two connecting grooves (7).

2. A split-type ball nut according to claim 1, characterized in that: The connecting pipe (6) is connected to the interior of the five coolant tanks (5).

3. A split-type ball nut according to claim 1, characterized in that: The front surface of the heat dissipation fins (4) at the frontmost side is fixedly installed with a first connecting pipe (9), which is connected to the interior of the coolant tank (5) at the frontmost side.

4. A split-type ball nut according to claim 1, characterized in that: A second connecting pipe (10) is fixedly installed on the rear surface of the heat dissipation fins (4) on the last side, and the second connecting pipe (10) communicates with the interior of the coolant tank (5) on the last side.

5. A split-type ball nut according to claim 1, characterized in that: The ball nut (1) has six mounting holes (11) on its right surface.

6. A split-type ball nut according to claim 5, characterized in that: The six mounting holes (11) are divided into two groups and are opened in a vertically corresponding manner.

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