Adjustable spray guard for complex bearing shell end face
By designing an adjustable spray protection device, the problem of inaccurate spraying on complex bearing end faces was solved, achieving complete coating coverage and stable spraying of the bearing, thus improving spraying efficiency and assembly accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 郑州沃华机械有限公司
- Filing Date
- 2025-06-28
- Publication Date
- 2026-06-19
AI Technical Summary
Existing technologies make it difficult to achieve selective spraying on complex bearing end faces, resulting in substandard coating quality that affects the assembly accuracy and performance of the bearings.
An adjustable spray protection device was designed, comprising a protective end plate, a limiting part, and a protective base plate. By setting spray holes, locking nuts, screws, and adjusting nuts, it achieves precise protection and stable spraying of the bearing bush, preventing paint penetration and adhesion.
It improves spraying efficiency and precision, ensures complete coating coverage of complex areas, avoids paint adhesion to critical parts, and enhances the assembly precision and performance of the bearing bush.
Smart Images

Figure CN224371777U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of bearing processing equipment, and more specifically, to an adjustable spray protection device for complex bearing end faces. Background Technology
[0002] As the core functional component of sliding bearings, bearing bushes play a vital role in the field of power machinery, typically including key equipment such as internal combustion engines, compressors, and turbine units. They mainly optimize the contact interface of the friction pair to achieve effective support of the journal, load transfer, and control of friction loss, thereby ensuring the operational stability of the equipment and extending its service life.
[0003] In modern industrial applications, some high-performance bearing products adopt special end-face structure designs, including complex geometric features such as asymmetrical curved surfaces and irregular grooves. During the wear-resistant coating process, the complexity of these morphological features far exceeds expectations, posing a great challenge to local protection work and becoming a problem that needs to be solved in the spraying process. On the one hand, it is necessary to ensure complete coverage of the coating in the target area, and on the other hand, it is necessary to avoid accidental adhesion of the sprayed material to key parts such as lubrication grooves and positioning surfaces. Existing protection technologies often suffer from insufficient adaptability, resulting in quality problems such as coating interface contamination and dimensional deviations, which seriously affect the assembly accuracy and performance of the bearings, causing the bearings to fail to meet design requirements. Utility Model Content
[0004] In view of this, this utility model addresses the shortcomings of the existing technology by proposing an adjustable spraying protection device for complex bearing end faces. It aims to solve the problem that it is difficult to accurately control the spraying process in traditional spraying methods, especially the inability to selectively spray some complex curved surfaces of bearing end faces, which leads to substandard coating quality in key parts of the bearing.
[0005] This utility model provides an adjustable spray protection device for complex bearing end faces, including: a protective end plate, a limiting part, and a protective base plate. The protective end plate sprays and protects the bearing to be sprayed. The limiting part is disposed on the top of the protective base plate. The protective end plate is disposed at the top of the limiting part. The protective end plate is connected to the limiting part. A connecting through hole is provided on the upper surface of the protective base plate.
[0006] Preferably, the protective end plate includes a mounting plate, mounting holes, and a protective plate assembly; the mounting plate has a spray hole in the center of its surface; the mounting hole has a plurality of mounting holes, which are respectively arranged along the circumference of the spray hole on the upper surface of the mounting plate; the protective plate assembly is disposed inside the spray hole, the protective plate assembly is connected to the upper middle end of the inner sidewall of the spray hole, and the protective plate assembly is disposed opposite to the bearing bush to be sprayed.
[0007] Preferably, the protective plate assembly includes: a connecting plate, a circular protective plate (8), and an irregularly shaped protective plate, wherein at least three sets of connecting plates are provided, and the three sets of connecting plates are respectively disposed inside the spray hole, and one end of the connecting plate is connected to the inner wall of the spray hole; the circular protective plate (8) is disposed inside the spray hole, and the circular protective plate (8) is connected to one end of the spray hole in the connecting plate; the irregularly shaped protective plate is disposed on one side of the connecting plate in the circular protective plate (8), and the irregularly shaped protective plate is connected to the inner wall of the spray hole.
[0008] Preferably, the limiting part includes: a locking nut and an adjusting module, wherein a plurality of locking nuts are provided, and the plurality of locking nuts are respectively provided on the upper surface of the mounting plate, wherein the locking nuts are provided corresponding to the mounting holes; the adjusting module is provided at the bottom of the mounting plate, and one end of the adjusting module passes through the mounting hole and is threadedly connected to the locking nut.
[0009] Preferably, the screw is fixedly connected through the central circular hole of the circular protective plate (8).
[0010] Preferably, the adjustable spray protection device for the complex bearing end face is characterized in that the protective base plate includes a fixed plate and an anti-slip plate, wherein the fixed plate is disposed below the screw, and the upper surface of the fixed plate is provided with a plurality of mounting grooves, and the mounting grooves are disposed opposite to the mounting holes; the anti-slip plate is disposed directly above the fixed plate, and the anti-slip plate and the fixed plate are fixedly connected by epoxy resin.
[0011] Preferably, the protective base further includes a positioning boss, and the positioning boss has a fixing hole at its axial center.
[0012] Preferably, the adjustable spray coating protection device for the complex bearing end face is characterized in that the screw and the fixing plate are connected through a mounting groove.
[0013] Preferably, the bottom of the anti-slip plate is equipped with a drainage groove and an anti-slip groove. The drainage groove and anti-slip groove on the bottom of the anti-slip plate adopt a composite structure. A main drainage groove is provided on the bottom of the anti-slip plate, and micro anti-slip teeth are provided on the bottom of the main drainage groove.
[0014] Preferably, the anti-slip plate is made of polymer material.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] (1) The adjustable spray protection device for the complex bearing end face is designed to spray the bearing to be sprayed by setting up a mounting plate, mounting holes and a protective plate group in cooperation. The mounting plate has spray holes on its surface, which avoids the technical problem of incomplete protection of the curved surface of the bearing in the existing bearing end face spray protection device, thereby improving the spraying efficiency of the device.
[0017] (2) The adjustable spray protection device for the complex bearing end face is designed with a locking nut, a screw, and an adjusting nut in cooperation. The locking nut and the screw are connected by threads to lock the protective end plate. The adjusting nut adjusts the height of the protective end plate to create a gap between the protective end plate and the bearing, preventing the protective end plate from sticking to the bearing during the spraying process. This avoids the technical problem of unstable shaking between the bearing and the protective end plate during the spraying process, which exists in existing bearing end face spray protection devices. This ensures the stability between the protective end plate and the bearing during the spraying process.
[0018] (3) The adjustable spray protection device for the complex bearing end face avoids the technical problem of bearing instability during the spraying process in the existing bearing end face spray protection device by setting a positioning boss on the protective base plate, the positioning boss fitting with the bearing, the positioning boss having a fixing hole in the center of the axis, and the fixing plate being connected to the fixing hole by a screw. This ensures the stability of the bearing and the protective base during the spraying process.
[0019] (4) The adjustable spray protection device for the complex bearing end face is provided with an anti-slip plate on the top of the fixed plate. The bottom of the anti-slip plate is provided with a double structure of drainage groove and anti-slip groove. The anti-slip plate is made of polymer material. The drainage groove can quickly guide the excess material dripping during the spraying operation to avoid the material from accumulating on the surface of the fixed plate. At the same time, the anti-slip groove increases the friction coefficient to effectively prevent the bearing from shifting and sliding during the spraying process, thus improving the stability of the spraying operation. Attached Figure Description
[0020] Figure 1 This is an exploded view of the structure provided for an embodiment of the present utility model;
[0021] Figure 2 This is a schematic diagram of the protective end plate structure provided in an embodiment of the present utility model;
[0022] Figure 3 This is a schematic cross-sectional view of the structure provided for an embodiment of the present utility model;
[0023] The components are: 1. Protective end plate; 2. Bearing bush; 3. Protective base plate; 4. Screw; 5. Adjusting nut; 6. Locking nut; 7. Connecting plate; 8. Circular protective plate; 9. Irregular protective plate; 10. Positioning boss; 11. Fixing screw. Detailed Implementation
[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0025] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0026] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0028] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0029] Example 1:
[0030] In this embodiment, as shown in the appendix Figure 1-3As shown, the adjustable spray protection device for complex bearing end faces includes a protective end plate 1 and a protective base plate 3. The protective end plate 1 is made of engineering plastic material, and its bottom is designed to fit the complex contour of the bearing 2 top by conforming to the bearing 2's contour. The protective base plate 3 is made of stainless steel and fits against the bottom of the bearing 2 to prevent paint from seeping in during the spraying process. In use, the protective base plate 3 is first placed at the bottom of the bearing 2, and then the protective end plate 1 is placed on top of the bearing 2. The distance between the protective end plate 1 and the bearing 2 is adjusted by adjusting the locking nut 6 and the adjusting nut 5, so that the protective end plate 1 and the protective base plate 3 work together to effectively block paint splashing and achieve spray protection for complex bearing end faces.
[0031] Example 2:
[0032] In this embodiment, as shown in the appendix Figure 1-3 As shown, in the adjustable spray protection device for complex bearing end faces, a through hole is opened on the protective end plate 1, through which the screw 4 can pass. A locking nut 6 is provided at the upper end of the screw 4, which has a locking function. By tightening the locking nut 6, the protective end plate 1 can be firmly fixed to the bearing 2, ensuring a stable fit between the protective end plate 1 and the bearing 2, thus improving the reliability of the spraying operation. An adjustable adjusting nut 5 is provided at the lower end of the screw 4. This structural design allows for vertical height adjustment of the protective end plate 1. By rotating the adjusting nut 5, the operator can control the gap between the protective end plate 1 and the bearing 2 according to the actual spraying process requirements. This adjustable gap design can effectively block the penetration of the spraying material into the space between the protective end plate 1 and the bearing 2, preventing the spraying material from sticking on the contact surface between the bearing 2 and the protective end plate 1, while ensuring the process accuracy of the spraying operation.
[0033] Example 3:
[0034] In this embodiment, as shown in the appendix Figure 1-3 As shown, this embodiment provides an adjustable spray protection device for complex bearing end faces. Its structure includes a protective base plate 3, which is provided with a positioning boss 10. The outer contour of the positioning boss 10 fits the bearing hole of the bearing 2. The positioning boss 10 can be matched and replaced according to the bearing hole size of different models of bearing 2 to ensure compatibility. This structure can not only achieve high-precision positioning of the bearing 2, but also provide stable mechanical fixation through the tight fit of the bearing hole, effectively preventing the bearing from shifting or loosening during the spraying process, thereby ensuring the stability of the spraying quality.
[0035] Example 4:
[0036] In this embodiment, an adjustable spray protection device for the complex bearing end face according to an embodiment of the present invention is provided. The bottom of the anti-slip plate is provided with a main drainage groove to guide the excess material dripping during the spraying operation, so as to avoid the accumulation of material affecting the working environment. At the bottom of the main drainage groove, micro anti-slip teeth are arranged. When the bearing is placed on the anti-slip plate for spraying, the main drainage groove guides the excess paint liquid, while the micro anti-slip teeth and the anti-slip groove work together to increase the friction coefficient of the contact surface, effectively preventing the bearing from displacing and sliding due to external force during the spraying process, and providing stable and reliable support for the spraying.
[0037] Those skilled in the art should understand the basic principles, main features, and advantages of this utility model in the above embodiments, but this utility model is not limited to the above embodiments.
[0038] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. An adjustable spray guard for complex bearing end faces, characterized by a guard end plate (1), a limiting portion, a guard bottom plate (3), wherein: The protective end plate (1) is used to spray the bearing shell to be coated for protection; the limiting part is set on the upper surface of the protective base plate (3); the protective end plate (1) is set at the top of the limiting part, the protective end plate (1) is connected to the limiting part, and the upper surface of the protective base plate (3) is provided with a connecting through hole.
2. The adjustable spray shield for complex bushing end faces of claim 1, wherein, The protective end plate (1) includes a mounting plate, mounting holes, and a protective plate assembly; the mounting plate has a spray hole in the middle of its surface; the mounting hole has a plurality of mounting holes, and the plurality of mounting holes are respectively arranged along the perimeter of the spray hole on the upper surface of the mounting plate; the protective plate assembly is arranged inside the spray hole, the protective plate assembly is connected to the upper middle end of the inner sidewall of the spray hole, and the protective plate assembly is arranged opposite to the bearing to be sprayed.
3. The adjustable spray shield for complex bushing end faces of claim 2, wherein, The protective plate assembly includes: a connecting plate (7), a circular protective plate (8), and a shaped protective plate (9). At least three sets of connecting plates (7) are provided, and the three sets of connecting plates (7) are respectively disposed inside the spray hole. One end of the connecting plate (7) is connected to the inner wall of the spray hole. The circular protective plate (8) is disposed inside the spray hole and is connected to one end of the spray hole in the connecting plate (7). The shaped protective plate (9) is disposed on one side of the connecting plate (7) in the circular protective plate (8) and is connected to the inner wall of the spray hole.
4. The adjustable spray shield for complex bushing end faces of claim 2, wherein, The limiting part includes: a locking nut (6) and an adjustment module, wherein a plurality of locking nuts (6) are provided, and the plurality of locking nuts (6) are respectively provided on the upper surface of the mounting plate, wherein the locking nuts (6) are provided corresponding to the mounting holes; the adjustment module is provided at the bottom of the mounting plate, and one end of the adjustment module passes through the mounting hole and is threadedly connected to the locking nuts (6).
5. The adjustable spray coating protection device for complex bearing end faces as described in claim 4, characterized in that, The screw (4) is fixedly connected through the central hole of the circular protective plate (8).
6. The adjustable spray coating protection device for complex bearing end faces as described in claim 1, characterized in that, The protective base plate (3) includes a fixed plate and an anti-slip plate. The fixed plate is located below the screw. The upper surface of the fixed plate is provided with several mounting grooves, and the mounting grooves are arranged opposite to the mounting holes. The anti-slip plate is located directly above the fixed plate, and the anti-slip plate and the fixed plate are fixedly connected with epoxy resin.
7. The adjustable spray coating protection device for complex bearing end faces as described in claim 6, characterized in that, The protective base plate (3) also includes a positioning boss (10), and the positioning boss (10) has a fixing hole on its axis.
8. The adjustable spray coating protection device for complex bearing end faces as described in claim 6, characterized in that, The fixing screw (11) is connected to the fixing plate through the mounting groove.
9. The adjustable spray coating protection device for complex bearing end faces as described in claim 6, characterized in that, The bottom of the anti-slip plate is equipped with a drainage groove and an anti-slip groove. The drainage groove and anti-slip groove on the bottom of the anti-slip plate adopt a composite structure. A main drainage groove is set on the bottom of the anti-slip plate, and micro anti-slip teeth are set on the bottom of the main drainage groove.
10. The adjustable spray coating protection device for complex bearing end faces as described in claim 9, characterized in that... Anti-slip plate, the anti-slip plate is made of polymer material.