CN213392303U - Rocker arm lubricating mechanism - Google Patents
Rocker arm lubricating mechanism Download PDFInfo
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- CN213392303U CN213392303U CN202022290122.2U CN202022290122U CN213392303U CN 213392303 U CN213392303 U CN 213392303U CN 202022290122 U CN202022290122 U CN 202022290122U CN 213392303 U CN213392303 U CN 213392303U
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- rocker arm
- oil
- oil duct
- seat
- rocker
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- Lubrication Of Internal Combustion Engines (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model relates to a rocker arm lubricating mechanism, including rocking arm seat, rocking arm axle, rocking arm, the rocking arm seat has been seted up on the rocking arm seat, the rocking arm axle passes the rocking arm seat mounting hole, and the rocking arm is installed on the rocking arm axle, the rocking arm includes first rocking arm and second rocking arm, the rocking arm seat is located between first rocking arm and the second rocking arm; the rocker arm seat is provided with a rocker arm seat oil inlet, a first oil duct and a second oil duct are formed in the rocker arm seat, the rocker arm seat oil inlet is respectively communicated with the second oil duct, and the second oil duct is communicated with the first oil duct; the rocker arm is internally provided with a third oil duct, a fourth oil duct, a fifth oil duct and an oil discharge port. The utility model forms the oil supply circulation oil duct of the lubricating oil in the rocker arm seat and the rocker arm, which can supply oil for the contact surface of the work without external oil pipe, and the oil supply system is more stable and reliable; the lubricating performance can be improved, and the stability and the positioning precision of the limiting rocker arm can be improved.
Description
Technical Field
The utility model relates to a rocking arm mechanical device's technical field, especially rocking arm lubrication mechanism's technical field.
Background
The engine rocker arm is a double-arm lever arranged on a cylinder cover, is driven by a cam shaft at the short arm end, the long arm end pushes an air valve to open, and the rocker arm component controls the opening and closing of an air inlet valve and an air outlet valve respectively, so that the air inlet and the air outlet of the cylinder are controlled. The increase of the driving force has higher requirements on the strength and lubrication of the rocker arm and the rocker arm shaft. The rocker shaft of the engine has the function of providing support for the rocker, the rocker rotates relative to the rocker shaft, when the rocker rotates at a high speed, the contact stress between a valve and the rocker is large, large heat can be generated, the lubrication and cooling of the rocker are very important, and the minimum abrasion can be ensured only by sufficient lubrication and cooling. In the prior art, the engine oil is generally used for splash lubrication, enough engine oil is difficult to splash on a contact surface, so that sufficient cooling lubrication cannot be obtained, the performance of a diesel engine is influenced, and the redundant lubricating oil can directly fall to the bottom of a tank to cause the waste of the lubricating oil. And adopt external oil pipe to annotate lubricating oil for the rocking arm axle, also be unfavorable for between rocking arm and rocking arm axle flow, especially lie in the rocking arm in the middle, lubricating oil circulation is smooth lubricated effect reduces, and external oil pipe can produce the trouble of easy oil leak of both ends joint moreover.
In order to ensure that the valve is accurately opened by the rocker arm, the rocker arm shaft is usually required to be axially limited, most of the existing limiting structures are shaft check rings, stop pins or bolts at two sides of the rocker arm for limitation, the rigid limiting modes are inconvenient to install and debug, and the positioning precision of the rocker arm is low due to the fact that a fit clearance needs to be reserved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems in the prior art, and provides a rocker arm lubricating mechanism, wherein an oil supply circulation oil duct for lubricating oil is formed in a rocker arm seat and a rocker arm, so that oil can be supplied for a working contact surface without an external oil pipe, and an oil supply system is more stable and reliable; the lubricating performance can be improved, and the stability and the positioning precision of the limiting rocker arm can be improved.
The utility model discloses an overcome the problem that prior art exists, provide following technical scheme:
a rocker arm lubricating mechanism comprises a rocker arm seat, a rocker arm shaft and a rocker arm, wherein the rocker arm seat is provided with a rocker arm seat mounting hole, the rocker arm shaft penetrates through the rocker arm seat mounting hole, and the rocker arm is mounted on the rocker arm shaft;
the rocker arm comprises a first rocker arm and a second rocker arm, and the rocker arm seat is positioned between the first rocker arm and the second rocker arm; the rocker arm seat is provided with a rocker arm seat oil inlet, a first oil duct and a second oil duct are formed in the rocker arm seat, the rocker arm seat oil inlet is respectively communicated with the second oil duct, and the second oil duct is communicated with the first oil duct; an oil penetration hole is formed in the position where the rocker arm is mounted on the rocker arm shaft; the rocker arm is internally provided with a third oil duct, a fourth oil duct, a fifth oil duct and an oil discharge port, and the fourth oil duct, the fifth oil duct and the oil discharge port are respectively communicated with the third oil duct.
In the rocker arm lubricating mechanism disclosed in the application, optionally, the rocker arm base oil inlet is arranged at the upper part of the rocker arm base, the second oil duct is obliquely connected with the first oil duct, and the first oil duct surrounds the rocker arm base mounting hole and is communicated with the rocker arm base mounting hole.
In the rocker arm lubricating mechanism disclosed in the application, optionally, a rocker arm hole is formed in the central position of the rocker arm, and the third oil passage surrounds the rocker arm hole and is communicated with the rocker arm hole.
In the lubricating mechanism for the rocker arm disclosed by the application, optionally, the two ends of the rocker arm are respectively connected with the valve driving part and the cam driving part, the two ends of the rocker arm are provided with the driving part bolt hole and the driving part bolt hole, and the fourth oil duct and the fifth oil duct are respectively communicated with the driving part bolt hole and the driving part bolt hole in an inclined mode.
In the rocker arm lubricating mechanism disclosed in the present application, optionally, the oil discharge port opens to the outside of the rocker arm.
In the rocker arm lubrication mechanism disclosed in the present application, optionally, an oil groove is provided on the rocker arm shaft, and the oil groove connects the rocker arm seat mounting hole and the rocker arm hole.
In the rocker arm lubrication mechanism disclosed in the present application, optionally, the rocker arm base and the rocker arms form a rocker arm assembly, and a plurality of groups of rocker arm assemblies are arranged on the rocker arm shaft; and a spacer bush and a spring are arranged between the rocker arms of one group and the rocker arms of the other group.
In the rocker arm lubricating mechanism disclosed herein, optionally, both ends of the spring are provided with spring pads.
The utility model has the advantages that:
the utility model discloses form the oil supply circulation oil duct of lubricating oil in rocking arm seat and rocking arm inside, can need not supply oil through external oil pipe, shorten the circulation route of lubricating oil, reduce the joint of revealing, can carry out accurate fuel feeding for the contact surface of work, the abundant cooling and lubrication guarantee lubricated quality, the more reliable and more stable of oil feeding system; the lubricating performance can be improved, the stability and the positioning precision of the limiting rocker arm can be improved, and the fit clearance of other rigid limiting modes is reduced.
The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the overall construction of a rocker arm lubricating mechanism;
FIG. 2 is a schematic illustration of the mating configuration of the rocker arm seat and rocker arm shaft;
FIG. 3 is a schematic cross-sectional view of a rocker arm seat;
FIG. 4 is a cross-sectional schematic view of a rocker arm.
In the drawings
1-rocker arm seat; 11-bolt holes; 12-rocker arm seat mounting holes; 13-a first oil gallery; 14-a second oil passage; 15-rocker arm seat oil inlet; 2-a first rocker arm; 3-a second rocker arm; 31-rocker arm hole; 32-a third oil passage; 33-a fourth oil passage; 34-a fifth oil passage; 35-oil discharge port; 4-rocker shaft; 41-oil leakage hole; 42-oil groove; 5-spacer bush; 6-a spring; 7-spring pad.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
In the description of the embodiments of the present invention, 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", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Moreover, the embodiments of the present application may repeat reference numerals or letters in the various examples, which are repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed.
Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, 2 and 3, the present invention provides a rocker arm lubricating mechanism,
the rocker arm fixing device comprises a rocker arm seat 1, a rocker arm shaft 4 and rocker arms, wherein bolt holes 11 are formed in two ends of the rocker arm seat 1 and used for fixing the rocker arm seat 1 on a cylinder body, rocker arm seat mounting holes 12 are formed in the rocker arm seat 1, the rocker arm shaft 4 penetrates through the rocker arm seat mounting holes 12, and the rocker arms are mounted on the rocker arm shaft 4.
The rocker arms comprise a first rocker arm 2 and a second rocker arm 3, and the first rocker arm 2 and the second rocker arm 3 are respectively used as an intake valve rocker arm and an exhaust valve rocker arm; the rocker arm seat 1 is positioned between the first rocker arm 2 and the second rocker arm 3; the rocker arm seat 1 is provided with a rocker arm seat oil inlet 15, the rocker arm seat 1 is internally provided with a first oil duct 13 and a second oil duct 14, the rocker arm seat oil inlet 15 is respectively communicated with the second oil duct 14, and the second oil duct 14 is communicated with the first oil duct 13;
the rocker arm seat oil inlet 15 is arranged at the upper part of the rocker arm seat 1, the second oil duct 14 is obliquely connected with the first oil duct 13, and the first oil duct 13 surrounds the rocker arm seat mounting hole 12 and is communicated with the rocker arm seat mounting hole 12.
As shown in fig. 2, an oil penetration hole 41 is arranged at the position where the rocker arm is arranged on the rocker arm shaft 4; an oil groove 42 is formed in the rocker arm shaft 4, and the oil groove 42 is connected with the rocker arm seat mounting hole 12 and the rocker arm hole 31. The oil leakage hole 41 is advantageous for enhancing lubrication between the rocker arm shaft 4 and the rocker arm, and excess lubricating oil from the rocker arm seat 1 can be stored in the oil groove 42 and delivered to the rocker arm hole during operation. And the sufficient lubrication of the contact surface is ensured when the rocker arm rotates.
The rocker arm seat 1 and the rocker arms form a rocker arm assembly, and a plurality of groups of rocker arm assemblies are arranged on the rocker arm shaft 4; a spacer 5 and a spring 6 are arranged between the rocker arms of one group and the rocker arms of the other group; the spacer bush 5 can reduce the friction force of the rocker arm and has low energy consumption; the rocking arm that spring 6 supported both sides supports the terminal surface of tight spacer 5, realizes the axial positioning to the rocking arm to reduce the rocking arm in the vibration of rotation in-process, spring 6 can give the space of a buffering of rocking arm assembly, and the device is inside gaseous can not appear disorderly, increases the stability of device.
Spring pads 7 are provided at both ends of the spring 6. The spring pad 7 is matched with the spring 6 to adjust the positioning precision.
Referring to fig. 4, the rocker arm is internally provided with a third oil passage 32, a fourth oil passage 33, a fifth oil passage 34 and an oil discharge port 35, and the fourth oil passage 33, the fifth oil passage 34 and the oil discharge port 35 are respectively communicated with the third oil passage 32.
The rocker arm hole 31 is formed in the center of the rocker arm, and the third oil passage 32 surrounds the rocker arm hole 31 and is communicated with the rocker arm hole 31.
The two ends of the rocker arm are respectively connected with the valve driving part and the cam driving part, air inlet and exhaust control is realized by driving the valve rod, the two ends of the rocker arm are provided with a driving part bolt hole and a driving part bolt hole, and the fourth oil duct 33 and the fifth oil duct 34 are respectively communicated with the driving part bolt hole and the driving part bolt hole in an inclined mode.
The oil discharge port 35 opens out of the rocker arm. The lubricating oil can be ensured to flow smoothly, the engine oil is not easy to block, and the cooling and lubricating effects are improved.
The use process comprises the following steps:
lubricating oil is injected from a rocker arm seat oil inlet 15 on the rocker arm seat 1, flows to the rocker arm seat mounting hole 12 and reaches the rocker arm shaft 4, and the rocker arm shaft 4 flows to all parts of the rocker arm through an oil groove 42 and an oil penetration hole 41; oil is fed from a rocker arm hole 31 in the center of the rocker arm, flows into a transmission part bolt hole and a driving part bolt hole at two ends of the rocker arm, and respectively flows to all parts of the rocker arm to cool and lubricate the working contact surface of the rocker arm; the excess lubricating oil flows out from the oil discharge port 35 of the rocker arm to form an oil passage.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.
Claims (8)
1. The rocker arm lubricating mechanism comprises a rocker arm seat (1), a rocker arm shaft (4) and a rocker arm, wherein a rocker arm seat mounting hole (12) is formed in the rocker arm seat (1), the rocker arm shaft (4) penetrates through the rocker arm seat mounting hole (12), and the rocker arm is mounted on the rocker arm shaft (4), and the rocker arm lubricating mechanism is characterized in that:
the rocker arm comprises a first rocker arm (2) and a second rocker arm (3), and the rocker arm seat (1) is positioned between the first rocker arm (2) and the second rocker arm (3); the rocker arm seat (1) is provided with a rocker arm seat oil inlet (15), the rocker arm seat (1) is internally provided with a first oil duct (13) and a second oil duct (14), the rocker arm seat oil inlet (15) is respectively communicated with the second oil duct (14), and the second oil duct (14) is communicated with the first oil duct (13); an oil penetration hole (41) is formed in the position where the rocker arm is arranged on the rocker arm shaft (4); the rocker arm is internally provided with a third oil duct (32), a fourth oil duct (33), a fifth oil duct (34) and an oil discharge port (35), and the fourth oil duct (33), the fifth oil duct (34) and the oil discharge port (35) are respectively communicated with the third oil duct (32).
2. The rocker arm lubricating mechanism of claim 1, wherein: the rocker arm seat oil inlet (15) is arranged at the upper part of the rocker arm seat (1), the second oil duct (14) is obliquely connected with the first oil duct (13), and the first oil duct (13) surrounds the rocker arm seat mounting hole (12) and is communicated with the rocker arm seat mounting hole (12).
3. The rocker arm lubricating mechanism of claim 1, wherein: the central position of the rocker arm is provided with a rocker arm hole (31), and the third oil duct (32) surrounds the rocker arm hole (31) and is communicated with the rocker arm hole (31).
4. The rocker arm lubricating mechanism of claim 1, wherein: the two ends of the rocker arm are respectively connected with the valve driving part and the cam driving part, the two ends of the rocker arm are provided with a driving part bolt hole and a driving part bolt hole, and the fourth oil duct (33) and the fifth oil duct (34) are respectively communicated with the driving part bolt hole and the driving part bolt hole in an inclined mode.
5. The rocker arm lubricating mechanism of claim 1, wherein: the oil discharge port (35) is communicated to the outside of the rocker arm.
6. The rocker arm lubricating mechanism of claim 1, wherein: an oil groove (42) is formed in the rocker arm shaft (4), and the oil groove (42) is connected with the rocker arm seat mounting hole (12) and the rocker arm hole (31).
7. The rocker arm lubricating mechanism of claim 1, wherein: the rocker arm seat (1) and the rocker arms form a rocker arm assembly, and a plurality of groups of rocker arm assemblies are arranged on the rocker arm shaft (4); a spacer bush (5) and a spring (6) are arranged between the rocker arms of one group and the rocker arms of the other group.
8. The rocker arm lubricating mechanism of claim 7, wherein: spring pads (7) are arranged at two ends of the spring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022290122.2U CN213392303U (en) | 2020-10-15 | 2020-10-15 | Rocker arm lubricating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022290122.2U CN213392303U (en) | 2020-10-15 | 2020-10-15 | Rocker arm lubricating mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN213392303U true CN213392303U (en) | 2021-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022290122.2U Active CN213392303U (en) | 2020-10-15 | 2020-10-15 | Rocker arm lubricating mechanism |
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| CN (1) | CN213392303U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183217A (en) * | 2021-10-29 | 2022-03-15 | 东风商用车有限公司 | Cast iron rocker arm structure |
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2020
- 2020-10-15 CN CN202022290122.2U patent/CN213392303U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183217A (en) * | 2021-10-29 | 2022-03-15 | 东风商用车有限公司 | Cast iron rocker arm structure |
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