Engine timing chain movable guide rail with embedded structure

Abstract

The utility model relates to the technical field of engine movable guide rails, in particular to an engine timing chain movable guide rail with an embedded structure. Comprising a supporting body and a chain sliding rail arranged in the supporting body, the supporting body and the chain sliding rail are mutually embedded, the supporting body comprises a base and side plates arranged on the two sides of the base, the top of the base is embedded with the bottom of the chain sliding rail, and the side plates are arranged on the two sides of the base. The side plates are embedded with the two sides of the chain sliding rail; the mounting groove in the top of the base is embedded with the convex block at the bottom of the chain sliding rail; a plurality of limiting holes are formed in the side plates; the limiting holes are correspondingly embedded with the protrusions on the two sides of the chain sliding rail. The engine timing chain movable guide rail has the advantages that the stability and reliability of the guide rail are improved, the running safety and durability of an engine are enhanced, the working efficiency is high, the cost is low, and the like. The engine timing chain movable guide rail is provided with an embedded structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of engine movable guide rail, especially to a movable guide rail with embedded structure for engine timing chain. BACKGROUND

[0002] The movable guide rail is a component for the timing system of an engine, which mainly provides stable guidance and support for the timing chain to prevent the chain from loosening, deviating or vibrating during operation. The movable guide rail is usually designed as an adjustable structure to adapt to timing chains of different widths, thereby improving its versatility and applicability.

[0003] Chinese patent CN219082185U discloses an engine timing chain guide rail, which comprises a support body and a guide piece. A plurality of slots are equidistantly arranged on the support body. A first mounting plate and a second mounting plate are arranged on one side of the support body in the vertical direction. A baffle is arranged at the top of the guide piece. The baffle and the top of the guide piece form a channel for the engine timing chain. The bottom of the guide piece is provided with a buckle that cooperates with the slots. The engine timing chain guide rail adopts a support body and a guide piece that cooperate with each other. The support body supports the guide piece. The overall structure is small after cooperation, and the installation space required for installation is small. Compared with the traditional installation method of a single plastic part, the installation space required is small, the structure is stable and reliable, and the support body and the guide piece can be separated.

[0004] However, under the action of vibration, high temperature and frequent friction between components during long-term operation of the engine, the buckle is prone to deformation under stress, causing the guide rail surface to fall off. The material lacks thermal stability and is prone to contraction in the middle or expansion outward at high temperatures, causing the guide rail to slide and displace, resulting in wear and tear of the components. The main support part and the timing chain sliding track part are usually made of single or ordinary materials, which have limited material properties and are difficult to sustain stable load under complex working conditions. UTILITY MODEL CONTENTS

[0005] The utility model aims at the deficiencies of the prior art, and provides a movable guide rail with embedded structure for engine timing chain, which ensures stable operation of the chain sliding track during engine operation and prevents it from falling off due to long-term operation. The embedded structure is not prone to contraction or expansion due to the increase in operating temperature inside the engine or long-term exposure to low external temperature, which makes the guide rail operate more stably and ensures the strength of the entire guide rail.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] An engine timing chain movable guide rail with a fitting structure comprises a support body and a chain slide rail track arranged in the support body, the support body and the chain slide rail track are fitted with each other, the support body comprises a base and side plates arranged on both sides of the base, the top of the base is fitted with the bottom of the chain slide rail track, and the side plates are fitted with both sides of the chain slide rail track.

[0008] Preferably, the mounting groove in the top of the base is fitted with the protrusion in the bottom of the chain slide rail track.

[0009] Preferably, a plurality of limiting holes are arranged on the side plates.

[0010] Preferably, the limiting holes are fitted with the protrusions on both sides of the chain slide rail track.

[0011] Preferably, the groove in one end of the base is fitted with the limiting part in one end of the chain slide rail track, and the groove is arranged below the mounting groove.

[0012] Preferably, the limiting part is arranged below the chain slide rail track, and the limiting part and the chain slide rail track are in U shape.

[0013] Preferably, the limiting part and the chain slide rail track are integrally formed.

[0014] Preferably, the support body and the chain slide rail track are made of PA66 and GF43 materials.

[0015] Preferably, the support body and the chain slide rail track are integrally formed by double-color injection molding.

[0016] Preferably, a plurality of reinforcing ribs are arranged between the base and the side plates.

[0017] Preferably, the reinforcing ribs are arranged in a grid shape.

[0018] The utility model discloses the beneficial effect lies in:

[0019] (1) the utility model discloses by adopting fitting structure can also effectively guarantee that chain slide rail track does not fall off, does not contract to the middle, does not expand outward, has improved the stability and reliability of guide rail, has strengthened the security and durability of engine operation.

[0020] (2) The utility model discloses a support main body uses PA66 material to guarantee basic bearing, chain slide track combines PA66 and GF43 two materials, and by two -color integrated injection moulding inlay structure, makes production spare part firm and reliable, two materials all have good mechanical property and rigidity, and GF43 is placed in the inside, and PA66 is placed outside, adopts inlay structure, makes the spare part not easy to appear loose, fall off, contract inwards and expand outward etc. When working, and GF43 material guarantees the fluency when chain sliding, and simultaneously guarantees heat resistance and mechanical property requirement.

[0021] (3) The utility model discloses a two -color injection moulding integrated forming processing mode, can realize complex color and material combination, good flexibility can also reduce the step of multiple injection or post -assembly in traditional craft, improves production efficiency, and reduces production cost.

[0022] Summarized above, the utility model has the advantages of improving the stability and reliability of guide rail, enhancing the safety and durability of engine operation, high work efficiency and low cost. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is whole structure schematic diagram of the utility model;

[0024] Figure 2 It is structure schematic diagram of support main body of the utility model;

[0025] Figure 3 It is structure schematic diagram of chain slide track of the utility model;

[0026] Figure 4 It is structure schematic diagram of support main body side plate inside of the utility model. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, 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 indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] Example

[0030] like Figures 1-4 As shown, this embodiment provides an engine timing chain movable guide rail with a fitting structure, including: a support body 1 and a chain slide rail 2 disposed within the support body 1. The support body 1 and the chain slide rail 2 are fitted together. The support body 1 includes: a base 11 and side plates 12 disposed on both sides of the base 11. The top of the base 11 is fitted with the bottom of the chain slide rail 2, and the side plates 12 are fitted with both sides of the chain slide rail 2. The fitting structure ensures that the chain slide rail 2 operates stably when the engine is running and will not fall off due to long-term operation. Furthermore, due to the increased operating temperature inside the engine or prolonged exposure to low ambient temperatures, the fitting structure is less prone to contraction or expansion, making the guide rail operation more stable and thus ensuring the strength of the entire guide rail.

[0031] This interlocking structure can also effectively ensure that the chain slide rail 2 does not fall off, does not shrink towards the middle, and does not expand outward, thereby improving the stability and reliability of the guide rail and enhancing the safety and durability of engine operation.

[0032] Meanwhile, the mounting groove 13 on the top of the base 11 engages with the protrusion 21 at the bottom of the chain slide rail 2.

[0033] In this embodiment, the side plate 12 is provided with a plurality of limiting holes 14. The limiting holes 14 can preferably be oblong holes, or rectangular or circular holes, etc., and can be selected according to actual usage requirements.

[0034] In this embodiment, the limiting hole 14 is fitted into the protrusions 22 on both sides of the chain slide rail 2.

[0035] In the embodiment, the groove 15 at one end of the base 11 is embedded with the limiting part 23 at one end of the chain sliding rail 2, and the groove 15 is arranged below the mounting groove 13.

[0036] In the embodiment, the limiting part 23 is correspondingly arranged below the chain sliding rail 2, and the limiting part 23 and the chain sliding rail 2 are in U shape, that is, a certain space is left between them, so that the structure is more stable and firm, and shaking and other conditions do not occur.

[0037] In the embodiment, the limiting part 23 and the chain sliding rail 2 are integrally formed, and the support body 1 and the chain sliding rail 2 are both integrally formed by two-color injection molding. This processing method has high flexibility, can realize complex color and material combination, can also reduce the steps of multiple injection molding or post-assembly in the traditional process, improves the production efficiency, and reduces the production cost.

[0038] In the embodiment, a plurality of reinforcing ribs 16 are arranged between the base 11 and the side plate 12, and the reinforcing ribs 16 are arranged in a grid shape, so that the support body 1 is more stable and firm, and the strength of the parts is guaranteed.

[0039] Of course, the entire movable guide rail is made of PA66 and GF43 materials, the support body 1 uses PA66 material to ensure basic bearing, the chain sliding rail 2 combines PA66 and GF43 materials, and relies on a two-color integrally injection-molded embedded structure to make the production parts stable and reliable. Both materials have good mechanical properties and rigidity, GF43 is placed inside, PA66 is placed outside, and an embedded structure is adopted, so that the parts are not prone to looseness, falling off, inward shrinkage and outward expansion during work.

[0040] In addition, the GF43 material ensures the smoothness of the chain sliding, and at the same time ensures the heat resistance and mechanical property requirements.

[0041] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. An engine timing chain movable guide rail having a built-in structure, characterized by, The application relates to a support main body and a chain sliding rail track arranged in the support main body, the support main body and the chain sliding rail track are mutually embedded, the support main body comprises a base and side plates arranged on both sides of the base, the top of the base is embedded with the bottom of the chain sliding rail track, and the side plates are embedded with both sides of the chain sliding rail track. The mounting groove in the top of the base is embedded with the protrusion in the bottom of the chain sliding rail track.

2. The movable guide rail of the engine timing chain with the embedded structure according to claim 1, characterized in that, A plurality of limiting holes are arranged on the side plates.

3. The timing chain movable guide rail of the engine having a chimeric structure according to claim 1, wherein, The limiting holes are embedded with the protrusions on both sides of the chain sliding rail track.

4. The movable guide rail of the engine timing chain with the embedded structure according to claim 3, characterized in that, The groove in one end of the base is embedded with the limiting part in one end of the chain sliding rail track, and the groove is arranged below the mounting groove.

5. The timing chain movable guide rail of the engine having a built-in structure according to claim 2, wherein The limiting part is correspondingly arranged below the chain sliding rail track, and the limiting part and the chain sliding rail track are in U shape.

6. The timing chain guide with a split construction according to claim 5, characterized in that The support main body and the chain sliding rail track are made of PA66 and GF43 materials.

7. The timing chain guide of claim 5, wherein the guide is formed of a plurality of segments. The support main body and the chain sliding rail track are both integrally formed by double-color injection molding.

8. The timing chain guide with a split construction according to claim 1, wherein, A plurality of reinforcing ribs are arranged between the base and the side plates.

9. The timing chain guide of claim 1, wherein, The reinforcing ribs are arranged in a grid shape.

10. The timing chain guide of claim 9, wherein the timing chain guide is a split timing chain guide. ​

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