Surface treatment device for corrosion-resistant nut
By designing a cylindrical rotation and cylinder pressurization method in the corrosion-resistant nut surface treatment device, the problem of uneven contact of the nut surface treatment liquid is solved, forming a uniform and dense anti-corrosion coating, which improves the corrosion resistance and service life of the nut.
Patent Information
- Application Number
- CN202422810003.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-19
AI Technical Summary
In existing surface treatment devices for corrosion-resistant nuts, uneven contact between the nut and the treatment liquid during the process results in an uneven anti-corrosion layer, affecting the nut's corrosion resistance and service life.
A device comprising a tank, a cylinder, a splined shaft, and a motor was designed. The cylinder is driven by the motor to rotate and move irregularly, so that the surface of the nut is in uniform contact with the treatment liquid. The treatment liquid is pressurized by a cylinder and enters the corners and gaps of the nut to form a uniform and dense anti-corrosion coating.
This process achieves uniform coverage of the nut surface treatment liquid, forming a dense anti-corrosion coating, which improves the nut's corrosion resistance and service life.
Smart Images

Figure CN223475415U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of nut processing equipment, and in particular to a surface treatment device for corrosion-resistant nuts. Background Art
[0002] Surface treatment equipment for corrosion-resistant nuts is specifically designed to treat the surface of nuts to improve their corrosion resistance. These devices typically employ various surface treatment techniques, including but not limited to electroplating, hot-dip galvanizing, and mechanical plating, to achieve the desired anti-corrosion effect.
[0003] For example, the existing publication CN219851041U discloses a surface treatment device for processing corrosion-resistant nuts. Specifically, it includes a treatment box with two partitions inside. A screen is slidably connected to the sides of both partitions, and an abutment rod is fixedly connected to the bottom surface of the screen. Two cam rods are rotatably connected to the sides of the treatment box, and the sides of the cam rods slidably abut against the lower ends of the abutment rods. This application uses a motor, transmission belt, and transmission wheel to cause the two cam rods to rotate simultaneously. The rotation of the cam rods causes the abutment rods to vibrate the screen up and down, thus facilitating the removal of debris and dust from the corrosion-resistant nuts. Subsequently, a spray assembly washes the corrosion-resistant nuts, and the vibrating screen ensures that all parts of the nut are washed. Finally, the treated corrosion-resistant nuts are collected in a collection box, making the surface treatment of corrosion-resistant nuts more convenient.
[0004] Existing surface treatment devices for corrosion-resistant nuts fail to form an effective anti-corrosion layer because the contact area between the nut and the tank cannot fully contact the treatment solution. This unevenness in anti-corrosion effect makes the contact area of the nut more susceptible to corrosion during use, especially in corrosive environments, thus affecting the overall corrosion resistance and service life of the nut. Therefore, we propose a surface treatment device for corrosion-resistant nuts. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a surface treatment device for corrosion-resistant nuts, solving the problems mentioned in the background section.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a surface treatment device for corrosion-resistant nuts, comprising: a tank containing a treatment liquid, a cylinder disposed within the tank, splined shafts fixedly installed on both sides of the cylinder, an inlet at the upper end of the cylinder penetrating the cylinder, and multiple equidistant liquid inlet holes on the cylinder penetrating the cylinder.
[0007] Both sides of the groove are provided with connecting mechanisms, which are connected to a spline shaft. Each connecting mechanism includes an inner spline sleeve, which is rotatably mounted on and passes through the groove. A rotating shaft is provided inside the inner spline sleeve, and a spline is provided outside the rotating shaft, with the rotating shaft engaging with the spline of the inner spline sleeve. A spline groove is formed at one end of the rotating shaft, and one end of the spline shaft is inserted into the spline groove, with the spline shaft engaging with the spline of the spline groove. A bracket is fixedly mounted outside the groove, and an electric push rod is fixedly mounted on the bracket. The output shaft of the electric push rod is rotatably mounted at the end of the rotating shaft.
[0008] As a further technical solution of this utility model, an annular plate is fixedly installed on the inner spline sleeve, a gear ring is fixedly installed on the outside of the annular plate, a motor is fixedly installed on the bracket, and a drive wheel is fixedly installed on the output shaft end of the motor, the drive wheel meshing with the gear ring.
[0009] As a further technical solution of this utility model, a cover plate is provided at the upper port of the tank.
[0010] As a further technical solution of this utility model, cylinders are fixedly installed on both sides of the tank body, and the output end of the cylinder is detachably connected to the cover plate by a screw connector.
[0011] As a further technical solution of this utility model, two symmetrically distributed support seats are fixedly installed at the bottom of the tank, and the cylinder is placed on the support seats.
[0012] As a further technical solution of this utility model, an observation window is fixedly installed on the outside of the tank.
[0013] This utility model provides a surface treatment device for corrosion-resistant nuts, which has the following advantages compared with the prior art:
[0014] 1. This design provides a surface treatment device for corrosion-resistant nuts. During the immersion process, a cylinder is slowly rotated, causing the nut inside the cylinder to slide relative to the inner wall. Simultaneously, the nut undergoes irregular movement within the cylinder, exposing different areas of the nut surface to the treatment solution. The treatment solution evenly covers all surfaces of the nut, forming a uniform and dense anti-corrosion coating.
[0015] 2. The surface treatment device for corrosion-resistant nuts designed in this paper involves placing a cover plate on the upper end of the tank and connecting it to cylinders at both ends via screw connectors. The cylinders drive the cover plate to move downwards, pressurizing the internal space of the tank. The air pressure pressurizes the treatment liquid, making it easier for the treatment liquid to enter the corners and gaps of the nut under pressure. Attached Figure Description
[0016] Figure 1 A schematic diagram of a surface treatment device for corrosion-resistant nuts;
[0017] Figure 2 Cross-sectional view of a surface treatment device for corrosion-resistant nuts Figure 1 ;
[0018] Figure 3 Cross-sectional view of a surface treatment device for corrosion-resistant nuts Figure 2 ;
[0019] Figure 4 This is an enlarged cross-sectional view of a surface treatment device for corrosion-resistant nuts.
[0020] In the diagram: 1. Tank body; 2. Cylinder; 3. Splined shaft; 4. Inlet; 5. Liquid inlet hole; 6. Inner spline sleeve; 7. Rotating shaft; 8. Spline groove; 9. Support; 10. Electric push rod; 11. Annular plate; 12. Gear ring; 13. Motor; 14. Drive wheel; 15. Cover plate; 16. Cylinder; 17. Screw connector; 18. Support seat; 19. Observation window. DETAILED DESCRIPTION
[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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-4This utility model provides a surface treatment device for corrosion-resistant nuts: A surface treatment device for corrosion-resistant nuts includes: a tank 1, the tank 1 is filled with a treatment liquid, a cylinder 2 is arranged inside the tank 1, splined shafts 3 are fixedly installed on both sides of the cylinder 2, an inlet 4 is opened at the upper end of the cylinder 2, the inlet 4 penetrates the cylinder 2, and a plurality of equally spaced liquid inlet holes 5 are opened on the cylinder 2, the liquid inlet holes 5 penetrate the cylinder 2. Both sides of the groove 1 are provided with connecting mechanisms, which are connected to the splined shaft 3. The connecting mechanisms include an inner splined sleeve 6, which is rotatably mounted on the groove 1 and passes through the groove 1. A rotating shaft 7 is provided inside the inner splined sleeve 6, and a spline is provided on the outside of the rotating shaft 7, with the rotating shaft 7 splinedly engaging with the inner splined sleeve 6. A splined groove 8 is opened at one end of the rotating shaft 7, and one end of the splined shaft 3 is inserted into the splined groove 8, with the splined shaft 3 splinedly engaging with the splined groove 8. A bracket 9 is fixedly installed outside the groove 1, and an electric push rod 10 is fixedly installed on the bracket 9. The output shaft of the electric push rod 10 is rotatably mounted on the end of the rotating shaft 7. An annular plate 11 is fixedly installed on the inner splined sleeve 6, and a gear ring 12 is fixedly installed on the outside of the annular plate 11. A motor 13 is fixedly installed on the bracket 9, and a drive wheel 14 is fixedly installed on the output shaft end of the motor 13, meshing with the gear ring 12. The cylinder 2 is initially supported by the support base 18. Then, the electric push rod 10 drives the rotating shaft 7 to move toward the cylinder 2. The spline groove 8 at one end of the rotating shaft 7 is fitted into the spline shaft 3. Then, the motor 13 drives the drive wheel 14 to rotate, and the drive wheel 14 drives the gear ring 12 to rotate, thereby driving the rotating shaft 7 and the spline shaft 3 to rotate synchronously. Thus, the cylinder 2 is slowly rotated during the soaking process. The nut inside the cylinder 2 slides relative to the inner wall of the cylinder 2. At the same time, the nut inside the cylinder 2 also moves irregularly, so that different positions on the surface of the nut can be exposed and come into contact with the treatment liquid.
[0023] Among them, such as Figure 3 As shown, a cover plate 15 is provided at the upper port of the tank 1. Cylinders 16 are fixedly installed on both sides of the tank 1, and the output ends of the cylinders 16 are detachably connected to the cover plate 15 via screw connectors 17. Two symmetrically distributed support seats 18 are fixedly installed at the bottom of the tank 1, and the cylinder 2 is placed on the support seats 18. An observation window 19 is fixedly installed on the outside of the tank 1. When the cylinder 2 is placed into the tank 1, it is initially supported by the support seats 18. During processing, the cover plate 15 is placed on the upper port of the tank 1 and connected to the cylinders 16 at both ends via screw connectors 17. The cylinders 16 drive the cover plate 15 to move downwards, pressurizing the internal space of the tank 1. The air pressure pressurizes the processing fluid, making it easier for the processing fluid to enter the corners and gaps of the nuts under pressure. The observation window 19 makes it easier to observe the working status inside the tank 1.
[0024] The working principle of this invention is as follows: The cover plate 15 is opened, and the nut is placed into the cylinder 2 through the inlet 4. The treatment solution in the tank 1 enters the cylinder 2 through the inlet hole 5, thereby performing surface corrosion resistance treatment on the nut. When the cylinder 2 is placed into the tank 1, it is initially supported by the support base 18. Then, the electric push rod 10 drives the rotating shaft 7 to move towards the cylinder 2. The spline groove 8 at one end of the rotating shaft 7 fits into the spline shaft 3. Then, the motor 13 drives the drive wheel 14 to rotate, which in turn drives the gear ring 12 to rotate, thus causing the rotating shaft 7 and the spline shaft 3 to rotate synchronously. During the immersion process, the cylinder 2 rotates slowly, and the nut inside the cylinder 2 slides relative to the inner wall of the cylinder 2. Simultaneously, the nut inside the cylinder 2 also undergoes irregular movement, allowing different positions on the nut surface to be exposed and contacted with the treatment solution. The treatment solution can evenly cover all surfaces of the nut, thereby forming a uniform and dense anti-corrosion coating.
[0025] During the process, the cover plate 15 is placed on the upper port of the tank 1 and connected to the cylinders 16 at both ends through the screw connector 17. The cylinders 16 drive the cover plate 15 to move down, and the cover plate 15 pressurizes the internal space of the tank 1. The air pressure pressurizes the treatment liquid, and the treatment liquid is more likely to enter the corners and gaps of the nut under pressure.
[0026] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.
Claims
1. A surface treatment device for corrosion-resistant nuts, characterized in that, Includes a tank (1), which is filled with a treatment liquid. A cylinder (2) is installed inside the tank (1). Splined shafts (3) are fixedly installed on both sides of the cylinder (2). An inlet (4) is opened at the upper end of the cylinder (2). The inlet (4) penetrates the cylinder (2). Multiple liquid inlet holes (5) are opened on the cylinder (2) at equal intervals. The liquid inlet holes (5) penetrate the cylinder (2). Both sides of the groove (1) are provided with connecting mechanisms. The connecting mechanisms are connected to the spline shaft (3). The connecting mechanisms include an inner spline sleeve (6). The inner spline sleeve (6) is rotatably mounted on the groove (1) and passes through the groove (1). A rotating shaft (7) is provided inside the inner spline sleeve (6). A spline is provided outside the rotating shaft (7) and the rotating shaft (7) is splined with the inner spline sleeve (6). A spline groove (8) is opened at one end of the rotating shaft (7). One end of the spline shaft (3) is inserted into the spline groove (8) and the spline shaft (3) is splined with the spline groove (8). A bracket (9) is fixedly installed outside the groove (1). An electric push rod (10) is fixedly installed on the bracket (9). The output shaft of the electric push rod (10) is rotatably mounted at the end of the rotating shaft (7).
2. The surface treatment device for corrosion-resistant nuts according to claim 1, characterized in that, An annular plate (11) is fixedly installed on the inner spline sleeve (6), and a gear ring (12) is fixedly installed on the outside of the annular plate (11). A motor (13) is fixedly installed on the bracket (9), and a drive wheel (14) is fixedly installed on the output shaft end of the motor (13). The drive wheel (14) meshes with the gear ring (12).
3. The surface treatment device for corrosion-resistant nuts according to claim 2, characterized in that, A cover plate (15) is provided at the upper port of the tank (1).
4. The surface treatment device for corrosion-resistant nuts according to claim 3, characterized in that, A cylinder (16) is fixedly installed on both sides of the tank (1). The output end of the cylinder (16) is detachably connected to the cover plate (15) by a screw connector (17).
5. The surface treatment device for corrosion-resistant nuts according to claim 4, characterized in that, Two symmetrically distributed support seats (18) are fixedly installed at the bottom of the groove (1), and the cylinder (2) is placed on the support seats (18).
6. The surface treatment device for corrosion-resistant nuts according to claim 5, characterized in that, An observation window (19) is fixedly installed on the outside of the tank (1).
Citation Information
Patent Citations
Surface treatment device for corrosion-resistant nut machining
CN219851041U