Lightweight decompression rocker arm assembly

By introducing a multi-layered treatment mechanism into the rocker arm assembly, the wear and noise problems between the rocker arm and the rocker arm shaft are solved by using lubricating oil mist to distribute evenly and control the amount of lubrication. This achieves high-quality lubrication and cost reduction, and improves the driving experience and engine performance.

CN223952677UActive Publication Date: 2026-02-27ZHEJIANG QIANGNENG MOTIVITY
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Patent Information

Application Number
CN202520355140.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2026-02-27
Estimated Expiration
2035-03-03

AI Technical Summary

Technical Problem

Existing lightweight pressure-reducing rocker arm assemblies suffer from wear and friction noise between the rocker arm and rocker arm shaft during use, and the grease content is difficult to control during lubrication, resulting in a poor driving experience and increased lubrication costs.

Method used

A multi-layer processing mechanism is adopted, which delivers lubricating oil mist to the space between the rocker arm shaft and the rocker arm body through the processing holes on the rocker arm shaft. The oil mist is evenly distributed to form a thin oil film, which controls the amount of lubricating oil, prevents excessive or insufficient lubrication, and maintains the purity of the lubricating oil.

Benefits of technology

It reduces frictional noise between the rocker arm body and the rocker arm shaft, improves lubrication quality, extends component life, reduces lubrication costs, and provides a better driving environment and engine efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a lightweight decompression rocker arm assembly, which relates to the technical field of rocker arm assemblies, and comprises a rocker arm shaft, the outer surface of the rocker arm shaft is provided with a multi-layer processing mechanism, and the multi-layer processing mechanism is used for lubricating the joint between the rocker arm shaft and a rocker arm body. The multi-layer processing mechanism is arranged on the rocker arm body, the driving mode of the multi-layer processing mechanism is selected according to the requirements of a user, the multi-layer processing mechanism can also conduct pressurization processing on the lubricating media, the guiding-out amount of lubricating oil mist is controlled by controlling the moving distance of the processing block, and then the use amount of lubricating oil on the contact surface between the rocker arm body and the rocker arm shaft is controlled. The lubricating cost of the contact surface between the rocker arm body and the rocker arm shaft is prevented from being increased, the lubricating oil flows in the closed space in the lubricating process, the lubricating oil is prevented from being polluted, the purity of the lubricating oil is guaranteed, and the lubricating quality of the contact surface between the rocker arm body and the rocker arm shaft is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to rocker arm assembly technical field, concretely is a kind of lightweight pressure reducing rocker arm assembly. BACKGROUND

[0002] Lightweight pressure reducing rocker arm assembly is achieved by using lightweight material and optimizing structure design to reduce weight and improve engine performance, it usually includes rocker arm body, shaft sleeve, rocker arm shaft and other key components, wherein the cross section of shaft sleeve is designed to gradually increase, to reduce material usage, reduce weight while maintaining working strength and stress requirements, rocker arm assembly is an important component in engine, mainly used to provide automatic pressure reducing function when engine starts, so that starting process is easier and safer.

[0003] The existing lightweight pressure reducing rocker arm assembly has the following defects in use:

[0004] 1, since lightweight pressure reducing rocker arm assembly is installed on engine, when lightweight pressure reducing rocker arm assembly is used, friction occurs between rocker arm and rocker arm shaft, and the wear between rocker arm and rocker arm shaft will gradually increase under long-term use, thereby affecting the normal operation of mechanical components, and the friction between rocker arm and rocker arm shaft produces noise during engine operation, thereby causing bad driving experience for driver.

[0005] 2, during lubrication of lightweight pressure reducing rocker arm assembly, the contact surface between rocker arm and rocker arm shaft is lubricated by periodic injection of lubricating grease, but this way is difficult to control the content of lubricating grease during lubrication, so that the contact surface between rocker arm and rocker arm shaft is over-lubricated or insufficiently lubricated, thereby increasing the lubrication cost of the contact surface between rocker arm and rocker arm shaft. INVENTION CONTENTS

[0006] In view of the above shortcomings of the prior art, the utility model provides a lightweight pressure reducing rocker arm assembly, which can effectively solve the problems in the prior art.

[0007] To achieve the above purpose, the utility model realizes by the following technical scheme:

[0008] The utility model discloses a lightweight pressure reducing rocker arm assembly, including rocker arm shaft, the both ends of rocker arm shaft are rotatably connected with rocker arm body, the inside of rocker arm shaft is equipped with processing cavity, the outer surface of rocker arm shaft is provided with multilayer processing mechanism;

[0009] The multilayer processing mechanism is used to lubricate the connecting portion between rocker arm shaft and rocker arm body, and the driving mode of multilayer processing mechanism is selected according to user demand, and the multilayer processing mechanism can also pressurize the lubricating medium.

[0010] Further, the processing hole is arranged on the two ends of the rocker shaft, and the processing hole is communicated with the processing cavity.

[0011] Further, the multi-layer processing mechanism comprises a driving plate and a processing pipe, one end of the processing pipe away from the driving plate is fixedly connected to the outer surface of the rocker shaft, and the one end of the processing pipe away from the driving plate is communicated with the processing cavity.

[0012] Further, the driving plate is fixedly connected with a driving rod at one end close to the processing pipe, the driving rod is slidingly connected to one end of the processing pipe close to the driving plate, the driving rod is fixedly connected with a processing block at one end away from the driving plate, and the radius of the processing block is matched with the inner diameter of the processing pipe.

[0013] Further, the outer surface of the processing pipe is fixedly connected with a storage box, the top end of the storage box is inserted with an integrated sealing plug, the bottom end of the storage box is fixedly communicated with a leading-out pipe, and one end of the leading-out pipe away from the storage box is fixedly communicated with the outer surface of the processing pipe.

[0014] Further, the inside of the processing pipe is fixedly connected with an atomizing plate.

[0015] Compared with the known prior art, the technical scheme has the following beneficial effects:

[0016] 1、 the processing hole on the rocker shaft delivers the lubricating oil mist to the contact surface between the rocker shaft and the rocker body, and then lubricates it, the small oil drops in the oil mist can be uniformly distributed on the contact surface between the rocker shaft and the rocker body, a thin oil film is formed on the surface, the direct friction between the rocker body and the rocker shaft is reduced, the noise generated by the friction between the rocker body and the rocker shaft is reduced, and a good driving environment is provided for the driver.

[0017] 2、 the moving distance of the processing block is controlled to control the leading-out amount of the lubricating oil mist, the use amount of the lubricating oil on the contact surface between the rocker body and the rocker shaft is controlled, the over-lubrication or insufficient lubrication of the contact surface between the rocker body and the rocker shaft is prevented, the lubrication cost of the contact surface between the rocker body and the rocker shaft is avoided, the lubricating oil flows in a closed space during the lubrication process, the lubricating oil is prevented from being contaminated, the purity of the lubricating oil is ensured, and the lubrication quality of the contact surface between the rocker body and the rocker shaft is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a partial three-dimensional structural diagram of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the multi-layer processing mechanism in this utility model;

[0022] Figure 4 In this utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 In this utility model Figure 3 Enlarged structural diagram at point B in the middle.

[0024] The labels in the diagram represent:

[0025] 1. Rocker arm body; 2. Rocker arm shaft;

[0026] Multi-layer processing mechanism: 31. Drive plate; 32. Drive rod; 33. Processing block; 34. Processing tube; 35. Storage box; 36. Outlet tube; 37. Atomizing plate;

[0027] 4. Processing cavity. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] The present invention will be further described below with reference to the embodiments.

[0030] This embodiment provides a lightweight pressure-reducing rocker arm assembly, such as... Figures 1 to 5 As shown, it includes a rocker arm shaft 2, with a rocker arm body 1 rotatably connected to both ends of the rocker arm shaft 2. A processing cavity 4 is opened inside the rocker arm shaft 2, and a multi-layer processing mechanism is provided on the outer surface of the rocker arm shaft 2.

[0031] The multi-layer processing mechanism is used for lubricating the connection between the rocker shaft 2 and the rocker body 1, and the driving mode of the multi-layer processing mechanism can be selected according to the user's demand, and the multi-layer processing mechanism can also be used for pressurizing the lubricating medium.

[0032] As a preferred embodiment in the embodiment, as shown in Figure 3 、 Figure 4 and Figure 5 , the two ends of the rocker shaft 2 are provided with processing holes, the processing holes are communicated with the processing cavity 4, the multi-layer processing mechanism comprises a driving plate 31 and a processing pipe 34, one end of the processing pipe 34 away from the driving plate 31 is fixedly connected to the outer surface of the rocker shaft 2, the one end of the processing pipe 34 away from the driving plate 31 is communicated with the processing cavity 4, one end of the driving plate 31 close to the processing pipe 34 is fixedly connected with a driving rod 32, the driving rod 32 is slidingly connected to one end of the processing pipe 34 close to the driving plate 31, one end of the driving rod 32 away from the driving plate 31 is fixedly connected with a processing block 33, the radius of the processing block 33 is matched with the inner diameter of the processing pipe 34, the outer surface of the processing pipe 34 is fixedly connected with a storage box 35, the top end of the storage box 35 is inserted with an integrated sealing plug, the bottom end of the storage box 35 is fixedly communicated with a leading-out pipe 36, one end of the leading-out pipe 36 away from the storage box 35 is fixedly communicated with the outer surface of the processing pipe 34, and the inside of the processing pipe 34 is fixedly connected with an atomizing plate 37.

[0033] It should be noted that: the parts of the multi-layer processing mechanism in the utility model are all made of light materials, so that the function of the rocker assembly is improved while avoiding the substantial increase in the weight of the rocker assembly itself, thereby meeting the demand of lightweight and pressure reduction of the rocker assembly.

[0034] Working principle:

[0035] Initial limitation:

[0036] Before use, the user needs to manually pull up the integrated sealing plug at the top end of the storage box 35, remove the integrated sealing plug, then pour the lubricating oil into the inside of the storage box 35 along the connection between the storage box 35 and the integrated sealing plug, and then reinsert the integrated sealing plug into the top end of the storage box 35.

[0037] The user can choose manual pushing or electric pushing for the driving force on the side of the driving plate 31 away from the processing pipe 34, if electric pushing is adopted, an electric push rod needs to be installed on the side of the driving plate 31 away from the processing pipe 34, and the piston rod in the electric push rod is connected to the side of the driving plate 31 away from the processing pipe 34.

[0038] As Figures 1 to 5As shown, the lubricating oil in the storage tank 35 is introduced into the inside of the processing tube 34 through the outlet pipe 36, and the lubricating oil is in the space between the processing block 33 and the atomization plate 37. Since the inner diameter of the processing block 33 is matched with the inner diameter of the processing tube 34, the space between the processing block 33 and the atomization plate 37 is in a negative pressure state. When the user contacts the contact surface between the rocker body 1 and the rocker shaft 2, the user manually pushes the driving plate 31 in the direction close to the processing tube 34, so that the driving plate 31 is close to the processing tube 34. When the driving plate 31 is close to the processing tube 34, the driving rod 32 is close to the processing tube 34, and the driving rod 32 drives the processing block 33 to be close to the atomization plate 37. When the processing block 33 is close to the atomization plate 37, the processing block 33 pushes the lubricating oil to be close to the atomization plate 37 by using the air compression principle, so that the lubricating oil passes through the atomization plate 37. By using the atomization principle, the lubricating oil forms a lubricating oil mist. The lubricating oil mist is introduced into the processing cavity 4 from the inside of the processing tube 34, and then introduced into the contact surface between the rocker shaft 2 and the rocker body 1 through the processing hole on the rocker shaft 2, so as to lubricate the contact surface. By using the small oil droplets in the oil mist, the contact surface between the rocker shaft 2 and the rocker body 1 can be uniformly distributed, and a thin oil film can be formed on the surface, so as to reduce the direct friction between the rocker body 1 and the rocker shaft 2, thereby reducing the noise generated by the friction between the rocker body 1 and the rocker shaft 2, and providing a good driving environment for the driver.

[0039] By controlling the moving distance of the processing block 33, the amount of lubricating oil mist is controlled, and the amount of lubricating oil used for lubricating the contact surface between the rocker body 1 and the rocker shaft 2 is controlled, so as to prevent the contact surface from being excessively lubricated or insufficiently lubricated, thereby avoiding increasing the lubricating cost of the contact surface between the rocker body 1 and the rocker shaft 2. In the lubricating process, the lubricating oil flows in a closed space, which is beneficial to prevent the lubricating oil from being contaminated, thereby ensuring the purity of the lubricating oil, improving the lubricating quality of the contact surface between the rocker body 1 and the rocker shaft 2, reducing the wear of the parts, prolonging the service life of the rocker body 1 and the rocker shaft 2, reducing the replacement frequency, reducing the maintenance cost, and helping to improve the efficiency and performance of the engine.

[0040] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features. The modification or replacement will not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A lightweight reduced pressure rocker assembly, characterized by, The application relates to a rocker arm shaft (2) with a rocker arm body (1) rotatably connected to both ends of the rocker arm shaft (2), a processing cavity (4) is arranged in the rocker arm shaft (2), and a multilayer processing mechanism is arranged on the outer surface of the rocker arm shaft (2). The multilayer processing mechanism is used for lubricating the connecting position between the rocker arm shaft (2) and the rocker arm body (1), the driving mode of the multilayer processing mechanism can be selected according to user demand, and the multilayer processing mechanism can also be used for pressurizing the lubricating medium.

2. A lightweight reduced pressure rocker assembly according to claim 1, wherein, Processing holes are arranged at both ends of the rocker arm shaft (2) and are communicated with the processing cavity (4).

3. A lightweight reduced pressure rocker assembly according to claim 2, wherein, The multilayer processing mechanism comprises a driving plate (31) and a processing tube (34), one end of the processing tube (34) away from the driving plate (31) is fixedly connected to the outer surface of the rocker arm shaft (2), and the end of the processing tube (34) away from the driving plate (31) is communicated with the processing cavity (4).

4. A lightweight reduced pressure rocker assembly as defined in claim 3, wherein, One end of the driving plate (31) close to the processing tube (34) is fixedly connected with a driving rod (32), the driving rod (32) is slidably connected to one end of the processing tube (34) close to the driving plate (31), one end of the driving rod (32) away from the driving plate (31) is fixedly connected with a processing block (33), and the radius of the processing block (33) is matched with the inner diameter of the processing tube (34).

5. A lightweight reduced pressure rocker assembly as defined in claim 3, wherein, The outer surface of the processing tube (34) is fixedly connected with a storage box (35), the top end of the storage box (35) is inserted with an integrated sealing plug, the bottom end of the storage box (35) is fixedly connected with a lead-out pipe (36), and one end of the lead-out pipe (36) away from the storage box (35) is fixedly connected to the outer surface of the processing tube (34).

6. A lightweight reduced pressure rocker assembly as defined in claim 5, wherein, The inside of the processing tube (34) is fixedly connected with an atomizing plate (37).