A spraying device for rust prevention treatment of cylinder liners

By designing fixing and auxiliary devices, the problem of uneven coating in cylinder liner rust prevention treatment was solved, achieving uniform spraying and stable rotation on the cylinder liner surface, thus improving the rust prevention effect and the overall protective performance of the cylinder liner.

CN224271690UActive Publication Date: 2026-05-26LIAOCHENG GUOTAI MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LIAOCHENG GUOTAI MASCH CO LTD
Filing Date
2025-06-24
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing cylinder liner rust prevention treatments lack spraying equipment that can ensure uniform coating distribution, resulting in uneven coating coverage, affecting the rust prevention effect and the protective performance of the cylinder liner, especially in complex curved surfaces or deep holes where spraying blind spots are easily created.

Method used

The system employs a combination of fixing and auxiliary devices, including a fixing sleeve, an electric push rod, a servo motor, a drive gear, a toothed belt, and a driven gear, to achieve stable clamping and continuous rotation of the cylinder liner, ensuring uniform coating coverage.

Benefits of technology

This achieves uniform distribution of the coating on the cylinder liner surface, improves the rust prevention effect and the overall protective performance of the cylinder liner, avoids blind spots in the coating, and enhances the adaptability and stability of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of cylinder liner processing technology. It discloses a spraying device for cylinder liner rust prevention treatment. By setting a fixing device and an auxiliary device, the fixing device is used to fix the cylinder liner, and the auxiliary device is used to drive the fixing device to rotate. This solves the problem that existing cylinder liner rust prevention treatment technologies lack a spraying device that can effectively ensure the uniform distribution of the rust-preventive coating. This leads to uneven coating coverage on the cylinder liner surface during actual spraying, resulting in localized areas that are too thick or too thin. This uneven coating distribution not only affects the consistency of the rust prevention effect but may also form corrosion weak points in areas with thinner coatings, thereby reducing the overall protective performance and service life of the cylinder liner. Traditional spraying methods are mostly static spraying or manual operation, making it difficult to achieve comprehensive and continuous coverage of the cylinder liner's outer surface, especially in complex curved surfaces or deep holes, where blind spots in the spraying are easily created.
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Description

Technical Field

[0001] This utility model belongs to the field of cylinder liner processing technology, and in particular relates to a spraying device for cylinder liner rust prevention treatment. Background Technology

[0002] Cylinder liner rust prevention treatment refers to the formation of a protective film or coating with anti-corrosion properties on the surface of a metal cylinder liner through physical or chemical methods. This effectively blocks oxygen, moisture, and other corrosive media in the air from contacting the metal surface, thereby preventing or delaying rust caused by oxidation during storage, transportation, and use. The treatment process typically includes cleaning and degreasing, surface activation, rust inhibitor spraying or impregnation, drying and curing, etc., aiming to improve the corrosion resistance and service life of the cylinder liner.

[0003] Existing cylinder liner rust prevention treatments lack a spraying device that can ensure uniform coating distribution. The problem with the aforementioned technology is that the lack of a spraying device that can effectively guarantee the uniform distribution of the rust-preventive coating leads to uneven coverage of the coating on the cylinder liner surface during actual spraying, resulting in localized areas that are too thick or too thin. This uneven coating distribution not only affects the consistency of the rust prevention effect but may also create weak points for corrosion in areas with thinner coatings, thereby reducing the overall protective performance and service life of the cylinder liner. In addition, traditional spraying methods are mostly static spraying or manual operation, making it difficult to achieve comprehensive and continuous coverage of the cylinder liner's outer surface. Especially in complex curved surfaces or deep holes, spraying blind spots are easily created, further exacerbating the instability of coating quality. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a spraying device for cylinder liner rust prevention treatment that can overcome the above problems or at least partially solve the above problems.

[0005] This utility model is implemented as follows: a spraying device for rust prevention treatment of cylinder liners includes a support leg, an operating box, a sprayer, and a paint tank. The upper end of the support leg is fixedly connected to the lower end of the operating box. The upper end of the inner wall of the operating box is fixedly connected to the upper surface of the sprayer. The rear end of the operating box is fixedly connected to the surface of the paint tank. A fixing device is provided inside the operating box, and an auxiliary device is provided on the fixing device.

[0006] The fixing device is used to fix the cylinder liner;

[0007] The auxiliary device is used to drive the fixed device to rotate.

[0008] To improve work efficiency, preferably, the fixing device includes a fixing sleeve, an electric push rod, a top block, a mating plate, a clamping plate, and an elastic block. The upper end of the inner wall of the fixing sleeve is fixedly connected to the upper surface of the electric push rod, the lower end of the electric push rod is fixedly connected to the upper end of the top block, the two side surfaces of the lower end of the top block are in contact with the inner surfaces of the two mating plates, the outer surface of the mating plates is fixedly connected to the inner wall of the clamping plate, and the two side surfaces of the clamping plate are fixedly connected to the surface of the elastic block. The top block adopts an inverted trapezoidal structure, forming a good inclined transmission fit with the mating plate, which can ensure uniform force distribution during clamping. At the same time, the combination of the clamping plate and the elastic block enhances the adaptability and clamping stability of different models of cylinder liners when clamping cylinder liners of different sizes and specifications. The elastic block ensures that the clamping plate can be retracted back to the surface of the fixing sleeve when not subjected to external force from the top block.

[0009] To improve spraying efficiency, preferably, the auxiliary device includes a servo motor, a drive gear, a mating toothed belt, a transmission toothed belt, and a driven gear. The output end of the servo motor is fixedly connected to the inner wall of the drive gear. The tooth surface of the drive gear meshes with the tooth surface of the mating toothed belt. The upper surface of the mating toothed belt is fixedly connected to the lower surface of the transmission toothed belt. The tooth surface of the transmission toothed belt meshes with the tooth surface of the driven gear. The meshing between the transmission toothed belt and the driven gear enables the fixed sleeve and the cylinder liner it holds to obtain a smooth and continuous rotational motion, ensuring that all areas of the cylinder liner surface can be evenly covered with paint during the spraying process.

[0010] To improve the stability of the device operation, preferably, a support frame is provided inside the operation box. The lower end of the support frame is fixedly connected to the inner wall of the operation box, and a guide plate is provided at the upper end of the support frame. The lower surface of the guide plate is fixedly connected to the upper surface of the support frame. A limit groove is provided at the upper end of the support frame. A protective box is provided at the rear end of the operation box, and the surface of the protective box is fixedly connected to the rear end of the operation box. The support frame provides a stable support foundation to ensure good stability of the entire device during operation.

[0011] To improve the repeatability of the operation, preferably, the two sides of the clamping plate are slidably connected to the inner wall of the fixed sleeve through a sliding groove, and the surface of the elastic block is fixedly connected to the inner wall of the fixed sleeve. The sliding groove allows the clamping plate to move linearly along a preset trajectory inside the fixed sleeve, providing good guiding performance and effectively bearing the lateral force generated during the clamping process, preventing the clamping plate from deflecting or getting stuck during movement or operation.

[0012] To improve the quality of the spraying operation, preferably, the surface of the servo motor is fixedly connected to the inner wall of the protective box, the inner wall of the drive gear is rotatably connected to the inner wall of the protective box via a rotating shaft, the lower surface of the mating toothed belt is slidably connected to the upper surface of the support frame, and the rear surface of the transmission toothed belt is slidably connected to the inner wall of the guide plate via a sliding groove. The sliding groove on the inner wall of the guide plate limits and guides the movement path of the transmission toothed belt, ensuring that it does not deviate, shake, or twist during movement, thereby ensuring the stability of the cylinder liner rotation and the consistency of the spraying operation.

[0013] To improve the reliability of the device, preferably, the upper end of the driven gear is fixedly connected to the lower surface of the fixed sleeve, the lower end of the driven gear is rotatably connected to the inner wall of the limiting groove via a rotating shaft, and the lower surface of the fixed sleeve is rotatably connected to the upper surface of the guide plate. The limiting groove provides stable rotational support for the driven gear, enabling it to maintain good axial stability during operation and avoiding poor meshing or unstable transmission caused by eccentricity or shaking.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This utility model incorporates a fixing device, an auxiliary device, a top block, a mating plate, a clamping plate, an elastic block, a driving gear, a mating toothed belt, a transmission toothed belt, and a driven gear. The fixing device secures the cylinder liner, while the auxiliary device drives the fixing device to rotate. The top block, with its inverted trapezoidal structure, forms a good inclined surface transmission fit with the mating plate, ensuring uniform force distribution during clamping. Furthermore, the clamping plate and elastic block enhance adaptability and clamping stability for cylinder liners of different sizes and specifications. The elastic block ensures that the clamping plate can... When not subjected to external force from the top block, the fixed sleeve surface can be retracted. The meshing between the transmission belt and the driven gear allows the fixed sleeve and the cylinder liner it holds to achieve smooth and continuous rotational motion. This ensures that all areas of the cylinder liner surface can be evenly covered with paint during the spraying process. This solves the problem that current cylinder liner rust prevention technology lacks a spraying device that ensures uniform coating distribution, resulting in uneven coating during actual spraying, affecting the rust prevention effect and cylinder liner protection performance. Traditional spraying methods are difficult to fully cover the outer surface of the cylinder liner, especially in complex areas, which can easily create spraying blind spots and exacerbate the problem of coating quality instability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main three-dimensional structure provided in an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the main body in a vertical cross-section provided in an embodiment of this utility model;

[0018] Figure 3This is a three-dimensional structural diagram of the fixing device provided in an embodiment of the present utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the auxiliary device provided in an embodiment of the present utility model.

[0020] In the diagram: 1. Fixing device; 101. Fixing sleeve; 102. Electric push rod; 103. Top block; 104. Mating plate; 105. Clamping plate; 106. Elastic block; 2. Auxiliary device; 201. Servo motor; 202. Drive gear; 203. Mating toothed belt; 204. Transmission toothed belt; 205. Driven gear; 3. Bearing frame; 4. Guide plate; 5. Limiting groove; 6. Protective box; 7. Support leg; 8. Operation box; 9. Sprayer; 10. Paint box. Detailed Implementation

[0021] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0022] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] like Figures 1 to 4As shown in the figure, a spraying device for rust prevention treatment of cylinder liners provided in this embodiment of the present invention includes a support leg 7, an operating box 8, a sprayer 9, and a paint tank 10. The upper end of the support leg 7 is fixedly connected to the lower end of the operating box 8. The upper end of the inner wall of the operating box 8 is fixedly connected to the upper surface of the sprayer 9. The rear end of the operating box 8 is fixedly connected to the surface of the paint tank 10. A fixing device 1 is provided inside the operating box 8, and an auxiliary device 2 is provided on the fixing device 1. The fixing device 1 is used to fix the cylinder liner, and the auxiliary device 2 is used to drive the fixing device 1 to rotate. The fixing device 1 includes a fixing sleeve 101, an electric push rod 102, a top block 103, a mating plate 104, a clamping plate 105, and an elastic block 106. The upper end of the inner wall of the fixing sleeve 101 is fixedly connected to the upper surface of the electric push rod 102. The lower end of the push rod 102 is fixedly connected to the upper end of the top block 103. The two side surfaces of the lower end of the top block 103 are in contact with the inner surfaces of the two mating plates 104. The outer surface of the mating plates 104 is fixedly connected to the inner wall of the clamping plate 105. The two side surfaces of the clamping plate 105 are fixedly connected to the surface of the elastic block 106. The top block 103 adopts an inverted trapezoidal structure, forming a good inclined transmission fit with the mating plates 104, which can ensure uniform force distribution during clamping. At the same time, with the clamping plate 105 and the elastic block 106, when clamping cylinder liners of different sizes and specifications, it enhances the adaptability and clamping stability of different models of cylinder liners. The elastic block 106 ensures that the clamping plate 105 can be retracted back to the surface of the fixed sleeve 101 when there is no external force from the top block 103. The auxiliary device 2 includes The system includes a servo motor 201, a drive gear 202, a mating toothed belt 203, a transmission toothed belt 204, and a driven gear 205. The output end of the servo motor 201 is fixedly connected to the inner wall of the drive gear 202. The tooth surface of the drive gear 202 meshes with the tooth surface of the mating toothed belt 203. The upper surface of the mating toothed belt 203 is fixedly connected to the lower surface of the transmission toothed belt 204. The tooth surface of the transmission toothed belt 204 meshes with the tooth surface of the driven gear 205. The meshing between the transmission toothed belt 204 and the driven gear 205 allows the fixed sleeve 101 and the cylinder liner it holds to achieve smooth and continuous rotational motion, ensuring that all areas of the cylinder liner surface are evenly covered with paint during the spraying process. A support frame 3 is installed inside the operating box 8, with its lower end fixedly connected to the inner wall of the operating box 8. A guide plate 4 is provided at the upper end of the support frame 3. The lower surface of the guide plate 4 is fixedly connected to the upper surface of the support frame 3. A limit groove 5 is provided at the upper end of the support frame 3. A protective box 6 is provided at the rear end of the operation box 8. The surface of the protective box 6 is fixedly connected to the rear end of the operation box 8. The support frame 3 provides a stable support foundation to ensure good stability of the entire device during operation. The two sides of the clamping plate 105 are slidably connected to the inner wall of the fixed sleeve 101 through sliding grooves. The surface of the elastic block 106 is fixedly connected to the inner wall of the fixed sleeve 101. Through the sliding grooves, the clamping plate 105 can move linearly along a preset trajectory inside the fixed sleeve 101, providing good guiding performance and effectively withstanding the lateral force generated during clamping, preventing the clamping plate 105 from deflecting or jamming during movement or operation.The servo motor 201 is fixedly connected to the inner wall of the protective box 6. The inner wall of the drive gear 202 is rotatably connected to the inner wall of the protective box 6 via a rotating shaft. The lower surface of the toothed belt 203 is slidably connected to the upper surface of the support frame 3. The rear surface of the transmission toothed belt 204 is slidably connected to the inner wall of the guide plate 4 via a sliding groove. The sliding groove on the inner wall of the guide plate 4 limits and guides the movement path of the transmission toothed belt 204, ensuring that it does not deviate, shake, or twist during movement, thereby ensuring the stability of the cylinder liner rotation and the consistency of the spraying operation. The upper end of the driven gear 205 is fixedly connected to the lower surface of the fixed sleeve 101, and the lower end of the driven gear 205 is rotatably connected to the inner wall of the limiting groove 5 via a rotating shaft. The lower surface of the fixed sleeve 101 is rotatably connected to the upper surface of the guide plate 4. The limiting groove 5 provides stable rotational support for the driven gear 205, ensuring good axial stability during operation and avoiding poor meshing or unstable transmission caused by eccentricity or shaking.

[0024] The working principle of this utility model:

[0025] During the rust prevention treatment of metal cylinder liners, the operating box 8 must first be opened to install the cylinder liners to be treated. Next, the cylinder liners are fitted onto the fixed sleeve 101 in the equipment, and the electric push rod 102 inside the fixed sleeve 101 is activated. When the electric push rod 102 starts working, it pushes the top block 103 downwards. The lower surface of the top block 103 is designed with an inverted trapezoidal structure and matches the surface of the mating plate 104 on the inner side of the clamping plate 105. When the top block 103 moves downwards, its inclined surface contacts the mating plate 104 and applies an outward pushing force, thereby causing the clamping plate 105 to slide outwards along the sliding grooves on both sides of the fixed sleeve 101. This action allows the clamping plate 105 to fit tightly against the inner wall of the cylinder liners, achieving a stable clamping of the cylinder liners and ensuring that they will not shift or loosen during subsequent processing. After all cylinder liners are clamped, the servo motor 201 at the rear of the operating box 8 is activated. The output shaft of the servo motor 201 drives the active... When gear 202 rotates, the driving gear 202 meshes with the mating toothed belt 203 located below it. The upper end of the mating toothed belt 203 is connected to the transmission toothed belt 204. Therefore, when the driving gear 202 rotates, it will drive the transmission toothed belt 204 to move along the slide groove on the guide plate 4 through the mating toothed belt 203. The lower end of the fixed sleeve 101 is provided with a driven gear 205, which meshes with the transmission toothed belt 204. Therefore, when the transmission toothed belt 204 moves, it will drive the driven gear 205 to rotate, thereby causing the fixed sleeve 101 and the cylinder liner it holds to rotate synchronously. At the same time, the sprayer 9 starts to work, drawing anti-rust paint from the paint box 10 and spraying it evenly. The sprayer 9 is located inside the operating box 8 and can continuously spray the cylinder liner while it is rotating. Since the cylinder liner is in a continuous rotating state during the spraying process, the paint can cover all parts of its outer surface, thereby ensuring the uniformity and integrity of the coating distribution and improving the effect of anti-rust treatment.

[0026] The specific models and specifications of the sprayer 9, electric push rod 102, elastic block 106, servo motor 201, drive gear 202, mating toothed belt 203, transmission toothed belt 204, and driven gear 205 proposed in this application need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0027] The wiring connection method and control method of the sprayer 9 and electric push rod 102 proposed in this application are all existing technologies in this field, and therefore will not be described in detail.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] 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 way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can exercise their rights without departing from the scope of the present utility model.

Claims

1. A kind of cylinder liner rust-proof treatment spraying device, including support leg (7), operating box (8), sprayer (9) and paint tank (10), the upper end of the support leg (7) is fixedly connected with the lower end of the operating box (8), the inner wall upper end of the operating box (8) is fixedly connected with the upper surface of the sprayer (9), the rear end of the operating box (8) is fixedly connected with the surface of the paint tank (10), it is characterized by: Inside the operation box (8), a fixing device (1) is provided, and an auxiliary device (2) is provided on the fixing device (1); The fixing device (1) is used to fix the cylinder liner; The auxiliary device (2) is used to drive the fixing device (1) to rotate.

2. The spraying device for anti-rust treatment of a cylinder liner according to claim 1, characterized in that: The fixing device (1) includes a fixing sleeve (101), an electric push rod (102), a top block (103), a mating plate (104), a clamping plate (105) and an elastic block (106). The upper end of the inner wall of the fixing sleeve (101) is fixedly connected to the upper surface of the electric push rod (102). The lower end of the electric push rod (102) is fixedly connected to the upper end of the top block (103). The two side surfaces of the lower end of the top block (103) are in contact and cooperation with the inner side surfaces of the two mating plates (104). The outer side surface of the mating plate (104) is fixedly connected to the inner wall of the clamping plate (105). The two side surfaces of the clamping plate (105) are fixedly connected to the surface of the elastic block (106).

3. The spraying device for anti-rust treatment of cylinder liners according to claim 2, characterized in that: The auxiliary device (2) includes a servo motor (201), a driving gear (202), a mating toothed belt (203), a transmission toothed belt (204) and a driven gear (205). The output end of the servo motor (201) is fixedly connected to the inner wall of the driving gear (202). The tooth surface of the driving gear (202) is meshed and connected to the tooth surface of the mating toothed belt (203). The upper surface of the mating toothed belt (203) is fixedly connected to the lower surface of the transmission toothed belt (204). The tooth surface of the transmission toothed belt (204) is meshed and connected to the tooth surface of the driven gear (205).

4. The spraying device for anti-rust treatment of a cylinder liner according to claim 3, characterized in that: Inside the operation box (8), a carrier (3) is provided. The lower end of the carrier (3) is fixedly connected to the inner wall of the operation box (8). A guide plate (4) is provided at the upper end of the carrier (3). The lower surface of the guide plate (4) is fixedly connected to the upper surface of the carrier (3). A limiting groove (5) is formed at the upper end of the carrier (3). A protective box (6) is provided at the rear end of the operation box (8). The surface of the protective box (6) is fixedly connected to the rear end of the operation box (8).

5. The spraying device for anti-rust treatment of a cylinder liner according to claim 2, wherein: The two side surfaces of the clamping plate (105) are slidably connected to the inner wall of the fixing sleeve (101) through a chute. The surface of the elastic block (106) is fixedly connected to the inner wall of the fixing sleeve (101).

6. The spraying device for anti-rust treatment of a cylinder liner according to claim 4, wherein: The surface of the servo motor (201) is fixedly connected to the inner wall of the protective box (6). The inner wall of the driving gear (202) is rotatably connected to the inner wall of the protective box (6) through a rotating shaft. The lower surface of the mating toothed belt (203) is slidably connected to the upper surface of the carrier (3). The rear side surface of the transmission toothed belt (204) is slidably connected to the inner wall of the guide plate (4) through a chute.

7. The spraying device for anti-rust treatment of a cylinder liner according to claim 4, characterized in that: The upper end of the driven gear (205) is fixedly connected to the lower surface of the fixing sleeve (101). The lower end of the driven gear (205) is rotatably connected to the inner wall of the limiting groove (5) through a rotating shaft. The lower surface of the fixing sleeve (101) is rotatably connected to the upper surface of the guide plate (4).