Cylinder sleeve coating spraying tool

Abstract

The utility model relates to the technical field of cylinder sleeve production, in particular to a cylinder sleeve coating spraying tool which comprises a cylindrical cylinder sleeve, an upper sheath and a lower sheath, a circle of boss edge is integrally formed on the outer wall of the top end of the cylinder sleeve, and a circle of slope groove is formed in the outer wall of the bottom end of the cylinder sleeve. The upper sheath is detachably and coaxially sleeved on the outer side of the boss edge of the cylinder sleeve, the lower sheath is detachably and coaxially sleeved on the outer side of the slope groove of the cylinder sleeve, the two sheaths are in clearance fit with the cylinder sleeve, and a lower buckling cover is detachably buckled in the middle of the bottom of the lower sheath. The cylinder sleeve coating spraying tool is simple in structure, easy to manufacture, low in cost, suitable for popularization, convenient and fast to mount and dismount and beneficial to improving the spraying efficiency and saving Teflon coating; the cylinder sleeve can be prevented from being damaged, can be used repeatedly and is high in repeated utilization rate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cylinder liner production technical field, concretely relates to a cylinder liner coating spraying frock. BACKGROUND

[0002] The cylinder liner is an important part on the automobile internal combustion engine, and is generally in a cylindrical structure and is installed in the cylinder body hole of the engine. When the engine works, the piston reciprocates in the inner hole of the cylinder liner, and the outer surface of the cylinder liner is cooled by cooling water. A large temperature difference will cause serious thermal stress, and the working environment of the cylinder liner is very harsh. The performance of the cylinder liner directly affects the effective working efficiency of the engine and the amount of harmful gas emission, and plays a crucial role in the utilization of social energy and environmental control. At present, the traditional cylinder liner has been difficult to adapt to the requirements of modern engine high sealing, low emission. In order to improve the wear resistance, sealing and emission performance of the cylinder liner, a production process of spraying Teflon coating on the outer surface of the cylinder liner has been developed, such as the patent document CN207634191U discloses a new type of cylinder liner for automobile. However, the cylinder liner Teflon coating is often only sprayed on part of the outer surface, and the upper and lower ends of the cylinder liner generally do not need to be sprayed. At present, when spraying, the part of the cylinder liner that does not need to be sprayed is usually wrapped with adhesive tape for protection, or the entire outer surface is sprayed. Such spraying method not only has low working efficiency, but also causes waste of Teflon coating. Therefore, it is necessary to design a more convenient cylinder liner coating spraying frock. CONTENT OF THE UTILITY MODEL

[0003] In view of the above situation, the utility model provides a cylinder liner coating spraying frock.

[0004] In order to realize the above purpose, the utility model adopts the following technical scheme:

[0005] A cylinder liner coating spraying frock, comprising a cylindrical cylinder liner, and an upper sleeve and a lower sleeve in the shape of a ring, the top end outer wall of the cylinder liner is integrally formed with a ring of boss edges, the bottom end outer wall of the cylinder liner is provided with a ring of inclined grooves, the upper sleeve is detachably coaxially sleeved outside the boss edges of the cylinder liner, the lower sleeve is detachably coaxially sleeved outside the inclined grooves of the cylinder liner, and the two sleeves and the cylinder liner are gap matched.

[0006] Further, the matching gap distance between the boss edges and the inclined grooves of the cylinder liner corresponding to the upper sleeve and the lower sleeve is 0.2mm-0.3mm, which facilitates the smooth sleeving and unsheathing between the upper sleeve, the lower sleeve and the cylinder liner. Further, the matching gap distance is preferably 0.25mm.

[0007] Further, the lower sheath is L-shaped in cross section, and the upper side of the inner corner of the lower sheath is tightly matched with the lower end surface of the bevel groove of the cylinder liner to realize positioning of the lower sheath.

[0008] Further, the upper sheath is L-shaped in cross section, and the upper side of the inner corner of the upper sheath is tightly matched with the lower side of the boss edge of the cylinder liner to realize positioning of the upper sheath.

[0009] Further, the lower sheath is L-shaped in cross section, and the upper side of the inner corner of the lower sheath is tightly matched with the lower end surface of the bevel groove of the cylinder liner to realize positioning of the lower sheath.

[0010] Further, the upper sheath is L-shaped in cross section, and the upper side of the inner corner of the upper sheath is tightly matched with the lower side of the boss edge of the cylinder liner to realize positioning of the upper sheath.

[0011] Further, the lower sheath is L-shaped in cross section, and the upper side of the inner corner of the lower sheath is tightly matched with the lower end surface of the bevel groove of the cylinder liner to realize positioning of the lower sheath.

[0012] Further, the upper sheath is L-shaped in cross section, and the upper side of the inner corner of the upper sheath is tightly matched with the lower side of the boss edge of the cylinder liner to realize positioning of the upper sheath.

[0013] Preferably, the upper sheath and the lower sheath are both made of nylon or plastic material with certain elasticity.

[0014] The utility model also includes other components which can make it normal use, all are the conventional means in the field, in addition, the device or component which is not added in the utility model, such as: cylinder liner and boss edge and bevel groove, all adopt the prior art in the field.

[0015] The utility model has the advantages of the following:

[0016] The cylinder liner coating spraying tool has the advantages of simple structure, easy manufacturing, low cost, convenient installation and dismounting, high spraying efficiency, high Teflon coating saving, and high reusability. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the cylinder liner and the cylinder liner coating spraying tool in embodiment 1.

[0018] Figure 2 It is a three-dimensional structure schematic view of the cylinder liner and the cylinder liner coating spraying tool in embodiment 1. Figure 1 It is a longitudinal section structure schematic view of the cylinder liner and the cylinder liner coating spraying tool in embodiment 1.

[0019] Figure 3 It is a three-dimensional structure schematic view of the cylinder liner and the cylinder liner coating spraying tool in embodiment 2.

[0020] Figure 4 As Figure 3 The cross-sectional structure schematic diagram of the two buckle covers and the two sheaths in the mutual separation state.

[0021] Figure 5 As Figure 4 The cross-sectional structure schematic diagram of the two buckle covers and the two sheaths in the mutual buckling state.

[0022] Figure 6 As Figure 4 The enlarged structure schematic diagram of the A part buckling structure one.

[0023] Figure 7 As Figure 4 The enlarged structure schematic diagram of the B part buckling structure two. DETAILED DESCRIPTION

[0024] The technical scheme of the present application will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments.

[0025] Embodiment 1

[0026] As Figures 1-2 shown, a cylinder liner coating spraying tool, comprising a cylindrical cylinder liner 1, and a circular ring-shaped upper sheath 2 and a lower sheath 3, the outer wall of the top end of the cylinder liner is integrally formed with a ring of boss edge 1-1, the outer wall of the bottom end of the cylinder liner is provided with a ring of inclined slope 1-2, the upper sheath is detachably coaxially sleeved on the outer side of the boss edge of the cylinder liner, the lower sheath is detachably coaxially sleeved on the outer side of the inclined slope of the cylinder liner, and the gap fit is formed between the two sheaths and the cylinder liner. The upper sheath and the lower sheath are made of nylon material, and the fitting gap 4 between the upper sheath and the lower sheath and the boss edge and the inclined slope of the cylinder liner is 0.25mm, so that the upper and lower sheaths and the cylinder liner can be smoothly sleeved and detached.

[0027] The cross section of the lower sheath is L-shaped, and the upper side of the inner corner of the lower sheath is tightly matched with the lower end surface 1-3 of the inclined slope of the cylinder liner to realize the positioning of the lower sheath.

[0028] The cross section of the upper sheath is L-shaped, and the upper side of the inner corner of the upper sheath is tightly matched with the lower side 1-4 of the boss edge of the cylinder liner to realize the positioning of the upper sheath.

[0029] The lower sheath is further provided with a detachable lower buckle cover 5 in the middle of the bottom, which is used for sealing the middle hole of the bottom of the lower sheath.

[0030] Embodiment 2

[0031] As Figures 3-7As shown, on the basis of embodiment 1, the upper cover of the upper cover is further provided with a detachable upper cover 6, which is used for covering the middle opening of the upper cover, and the two covers and the two covers are matched to form a relatively closed closed space in the cylinder sleeve, so that a small amount of Teflon coating is prevented from floating into and adhering to the inner wall of the cylinder sleeve during spraying.

[0032] The outer periphery of the lower cover is matched with the inner side of the lower cover, and the buckle structure one is matched between the outer periphery of the lower cover and the inner side of the lower cover.

[0033] The edge of the upper cover is matched with the top outer edge of the upper cover, and the buckle structure two is matched between the edge of the upper cover and the top outer edge of the upper cover.

[0034] The upper cover and the lower cover are made of plastic material and have certain elasticity, the clamping protrusion one and the clamping protrusion two can be well matched with the clamping groove one and the clamping groove two, and the upper cover and the lower cover are matched with the upper cover and the lower cover.

[0035] The technical scheme of the utility model is not limited to the above-mentioned specific embodiments, and many modifications and changes are obvious to those skilled in the art without deviating from the scope and spirit of the described embodiments, and any technical modification made within the spirit and principles of the utility model falls within the protection scope of the utility model.

Claims

1. A cylinder liner coating spraying tool, comprising a cylindrical cylinder liner, a ring of boss edges being integrally formed on the outer wall of the top end of the cylinder liner, and a ring of bevel grooves being formed on the outer wall of the bottom end of the cylinder liner, characterized in that: The application further comprises an annular upper sheath and a lower sheath, the upper sheath is detachably coaxially sleeved outside the boss edge of the cylinder liner, the lower sheath is detachably coaxially sleeved outside the bevel groove of the cylinder liner, and the cylinder liner and the two sheaths are in clearance fit.

2. The coating spraying tool for a cylinder liner according to claim 1, characterized by: The clearance distance between the upper sheath and the lower sheath and the boss edge and the bevel groove of the cylinder liner is 0.2-0.3 mm.

3. The coating spraying tool for a cylinder liner according to claim 2, characterized by: The clearance distance is 0.25 mm.

4. The coating spraying tool for a cylinder liner according to claim 1, characterized by: The cross section of the lower sheath is L-shaped, the upper side of the inner corner is tightly fitted with the lower end surface of the bevel groove of the cylinder liner to realize positioning of the lower sheath.

5. The coating spraying tool for a cylinder liner according to claim 1, characterized by: The cross section of the upper sheath is L-shaped, the upper side of the inner corner is tightly fitted with the lower side of the boss edge of the cylinder liner to realize positioning of the upper sheath.

6. The coating spraying tool for a cylinder liner according to claim 4, characterized by: A lower buckle cover is detachably buckled in the middle of the bottom of the lower sheath.

7. The coating spraying tool for a cylinder liner according to claim 5, characterized by: An upper buckle cover is detachably buckled above the upper sheath.

8. The coating spraying tool for a cylinder liner according to claim 6, characterized by: A buckling structure one is arranged between the outer peripheral edge of the lower buckle cover and the inner side edge of the lower sheath.

9. The coating spraying tool for a cylinder liner according to claim 7, characterized by: A buckling structure two is arranged between the edge of the upper buckle cover and the top outer edge of the upper sheath.

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