CN113898722A - Rocker arm mechanism - Google Patents

Rocker arm mechanism Download PDF

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Publication number
CN113898722A
CN113898722A CN202111222648.XA CN202111222648A CN113898722A CN 113898722 A CN113898722 A CN 113898722A CN 202111222648 A CN202111222648 A CN 202111222648A CN 113898722 A CN113898722 A CN 113898722A
Authority
CN
China
Prior art keywords
rocker arm
rocker
oil storage
shaft
plane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111222648.XA
Other languages
Chinese (zh)
Inventor
李文达
鞠莉莉
牛军军
吕秉琳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Shipbuilding Power Engineering Institute Co Ltd
Original Assignee
China Shipbuilding Power Engineering Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Shipbuilding Power Engineering Institute Co Ltd filed Critical China Shipbuilding Power Engineering Institute Co Ltd
Priority to CN202111222648.XA priority Critical patent/CN113898722A/en
Publication of CN113898722A publication Critical patent/CN113898722A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H21/00—Gearings comprising primarily only links or levers, with or without slides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/042—Guidance of lubricant
    • F16H57/043—Guidance of lubricant within rotary parts, e.g. axial channels or radial openings in shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

The invention discloses a rocker arm mechanism, comprising: the rocker shaft is provided with a horizontal oil storage cavity along the axial direction, the horizontal oil storage cavity is provided with a closed end and an open end which can be used for injecting oil into the horizontal oil storage cavity, the lower surface of the rocker shaft is a plane, and the lower surface of the rocker shaft is provided with a through hole which can be communicated with the horizontal oil storage cavity; the upper surface of the rocker arm seat is a matching plane for mounting the rocker arm shaft, and a groove is formed in the position, corresponding to the through hole, of the matching plane; under the operating condition, the recess with the through-hole is linked together in order to form the vertical oil storage chamber that sets up along the direction of gravity, just the lower surface of rocking arm axle can with the cooperation plane carries out face seal in order to prevent fluid in the vertical oil storage chamber is revealed. The traditional sealing mode of the sealing ring is changed into a surface sealing mode, so that the sealing problem under the condition that the rocker arm mechanism is frequently disassembled and assembled is solved, and the dynamic rigidity requirement and the sealing property of the rocker arm mechanism are ensured to meet the use requirement.

Description

Rocker arm mechanism
Technical Field
The invention relates to the technical field of rocker mechanisms with sealing functions, in particular to a rocker mechanism.
Background
In order to ensure the rigidity, sealing performance and other performances of the rocker arm mechanism, the traditional rocker arm shaft is cylindrical, the rocker arm seat is split and comprises a base and an upper cover, the rocker arm shaft is firmly fixed between the base and the upper cover by the split rocker arm seat, and the rocker arm seat and the rocker arm shaft are sealed by a sealing ring. However, this structure is very unfavorable for the dismouting, and frequent dismouting can lead to the sealing washer to damage, and then leads to rocker mechanism oil leak scheduling problem.
Disclosure of Invention
The invention aims to provide a rocker arm mechanism which is used for solving the problems that in the prior art, a rocker arm seat is low in rigidity and is easy to cause sealing difficulty due to frequent disassembly and assembly.
The above object of the present invention can be achieved by the following technical solutions:
the present invention provides a rocker arm mechanism, comprising: the rocker shaft is provided with a horizontal oil storage cavity along the axial direction, the horizontal oil storage cavity is provided with a closed end and an open end which can be used for injecting oil into the horizontal oil storage cavity, the lower surface of the rocker shaft is a plane, and the lower surface of the rocker shaft is provided with a through hole which can be communicated with the horizontal oil storage cavity; the upper surface of the rocker arm seat is a matching plane for mounting the rocker arm shaft, and a groove is formed in the position, corresponding to the through hole, of the matching plane; under the operating condition, the recess with the through-hole is linked together in order to form the vertical oil storage chamber that sets up along the direction of gravity, just the lower surface of rocking arm axle can with the cooperation plane carries out face seal in order to prevent fluid in the vertical oil storage chamber is revealed.
Preferably, the groove is located at the center of the fitting plane.
Preferably, wherein the rocker arm seat is integrally formed.
Preferably, the method further comprises the following steps: the fixing bolts can penetrate through the rocker arm shaft in the gravity direction and are inserted into the rocker arm seat so as to connect the rocker arm shaft and the rocker arm seat into a whole through bolts, and under the working state, the pretightening force between the lower surface of the rocker arm shaft and the matching plane can be adjusted by adjusting the length of the fixing bolts inserted into the rocker arm seat so as to ensure that the sealing effect meets the preset requirement.
Preferably, the number of the fixing bolts is four, and the four fixing bolts are arranged at intervals along the circumferential direction of the groove.
Preferably, four fixing bolts are arranged at equal intervals along the circumferential direction of the groove.
Preferably, in the working state, the open end of the horizontal oil storage chamber is in a closed state.
Preferably, in an operating state, lubricating oil is stored in the horizontal oil storage chamber and the vertical oil storage chamber.
The invention has at least the following characteristics and advantages:
the traditional sealing mode of the sealing ring is changed into a surface sealing mode, so that the sealing problem under the condition that the rocker arm mechanism is frequently disassembled and assembled is solved, and the dynamic rigidity requirement and the sealing property of the rocker arm mechanism are ensured to meet the use requirement.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural view of a rocker arm mechanism of the present invention in use;
fig. 2 is a sectional view taken along the line a-a in fig. 1.
Reference numerals and description:
100. a rocker arm mechanism; 1. a rocker shaft; 11. a horizontal oil storage chamber; 12. a closed end; 13. an open end; 14. a through hole; 2. a rocker arm seat; 21. a mating plane; 22. a groove; 3. a vertical oil storage chamber; 4. and (5) fixing the bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention provides a rocker arm mechanism 100, see fig. 1 and 2, comprising a rocker shaft 1 and a rocker arm seat 2. Specifically, the rocker arm shaft 1 is provided with a horizontal oil storage cavity 11 along the axial direction thereof, the horizontal oil storage cavity 11 is provided with a closed end 12 and an open end 13 which can be used for filling oil into the horizontal oil storage cavity 11, the lower surface of the rocker arm shaft 1 is a plane, and the lower surface of the rocker arm shaft 1 is provided with a through hole 14 which can be communicated with the horizontal oil storage cavity 11; the upper surface of the rocker arm seat 2 is a matching plane 21 for mounting the rocker arm shaft 1, and a groove 22 is arranged on the matching plane 21 corresponding to the through hole 14; in an operating state, the groove 22 and the through hole 14 are communicated to form the vertical oil storage chamber 3 arranged along the gravity direction, and the lower surface of the rocker arm shaft 1 can be subjected to surface sealing (i.e. in a surface compression sealing mode) with the matching plane 21 to prevent oil in the vertical oil storage chamber 3 from leaking.
In some embodiments, referring to fig. 2, the recess 22 is located at the center of the mating plane 21.
In some embodiments, referring to fig. 1, the rocker arm mechanism 100 further includes a plurality of fixing bolts 4, the fixing bolts 4 can penetrate through the rocker shaft 1 and be inserted into the rocker arm base 2 along the gravity direction to bolt the rocker shaft 1 and the rocker arm base 2 into a whole, and in an operating state, the pretightening force between the lower surface of the rocker shaft 1 and the matching plane 21 can be adjusted by adjusting the length of the fixing bolts 4 inserted into the rocker arm base 2 to ensure that the sealing effect meets the preset requirement.
In some embodiments, the rocker arm seat 2 is integrally formed. That is, the rocker arm seat 2 and the rocker arm shaft 1 are designed to be in plane contact, the rocker arm shaft 1 and the rocker arm seat 2 are in surface sealing through bolt pretightening force, and the main sealing performance is ensured through the analysis of the opening and the contact pressure of the connection surface of the rocker arm shaft 1 and the rocker arm seat 2.
In some embodiments, referring to fig. 1, the number of the fixing bolts 4 is four, and the four fixing bolts 4 are arranged at intervals along the circumferential direction of the groove 22. More preferably, four fixing bolts 4 are arranged at equal intervals in the circumferential direction of the groove 22.
In some embodiments, in the working state, the open end 13 of the horizontal oil storage chamber 11 is in a closed state, and lubricating oil is stored in the horizontal oil storage chamber 11 and the vertical oil storage chamber 3.
The traditional sealing mode of the sealing ring is changed into a surface sealing mode, so that the sealing problem under the condition that the rocker arm mechanism 100 is frequently disassembled and assembled is solved, and the dynamic rigidity requirement and the sealing performance of the rocker arm mechanism are ensured to meet the use requirement.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (8)

1. A rocker arm mechanism, comprising:
the rocker shaft is provided with a horizontal oil storage cavity along the axial direction, the horizontal oil storage cavity is provided with a closed end and an open end which can be used for injecting oil into the horizontal oil storage cavity, the lower surface of the rocker shaft is a plane, and the lower surface of the rocker shaft is provided with a through hole which can be communicated with the horizontal oil storage cavity;
the upper surface of the rocker arm seat is a matching plane for mounting the rocker arm shaft, and a groove is formed in the position, corresponding to the through hole, of the matching plane;
under the operating condition, the recess with the through-hole is linked together in order to form the vertical oil storage chamber that sets up along the direction of gravity, just the lower surface of rocking arm axle can with the cooperation plane carries out face seal in order to prevent fluid in the vertical oil storage chamber is revealed.
2. The rocker mechanism of claim 1, wherein the recess is located at a center of the mating plane.
3. The rocker mechanism of claim 2, wherein the rocker seat is integrally formed.
4. The rocker mechanism of any of claims 1 to 3, further comprising: the fixing bolts can penetrate through the rocker arm shaft in the gravity direction and are inserted into the rocker arm seat so as to connect the rocker arm shaft and the rocker arm seat into a whole through bolts, and under the working state, the pretightening force between the lower surface of the rocker arm shaft and the matching plane can be adjusted by adjusting the length of the fixing bolts inserted into the rocker arm seat so as to ensure that the sealing effect meets the preset requirement.
5. The rocker mechanism of claim 4, wherein the number of fixing bolts is four, and the four fixing bolts are arranged at intervals along the circumferential direction of the groove.
6. The rocker mechanism of claim 5, wherein four of the anchor bolts are equally spaced circumferentially of the recess.
7. The rocker mechanism of claim 5, wherein the open end of the horizontal oil reservoir is closed in the operating condition.
8. The rocker mechanism of claim 7, wherein the horizontal oil reservoir and the vertical oil reservoir contain lubricating oil during operation.
CN202111222648.XA 2021-10-20 2021-10-20 Rocker arm mechanism Pending CN113898722A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111222648.XA CN113898722A (en) 2021-10-20 2021-10-20 Rocker arm mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111222648.XA CN113898722A (en) 2021-10-20 2021-10-20 Rocker arm mechanism

Publications (1)

Publication Number Publication Date
CN113898722A true CN113898722A (en) 2022-01-07

Family

ID=79192977

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111222648.XA Pending CN113898722A (en) 2021-10-20 2021-10-20 Rocker arm mechanism

Country Status (1)

Country Link
CN (1) CN113898722A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201474742U (en) * 2009-09-21 2010-05-19 佛山市顺德德力柴油机有限公司 Lever lubricating mechanism of vertical single-cylinder diesel engine
CN103375210A (en) * 2012-04-27 2013-10-30 安徽华菱汽车有限公司 Engine and support for cam shaft and rocker shaft
CN105569756A (en) * 2015-03-18 2016-05-11 第一拖拉机股份有限公司 Diesel engine single overhead camshaft driven valve rocker mechanism
CN108457714A (en) * 2018-03-17 2018-08-28 潍柴重机股份有限公司 A kind of rocking arm mounting structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201474742U (en) * 2009-09-21 2010-05-19 佛山市顺德德力柴油机有限公司 Lever lubricating mechanism of vertical single-cylinder diesel engine
CN103375210A (en) * 2012-04-27 2013-10-30 安徽华菱汽车有限公司 Engine and support for cam shaft and rocker shaft
CN105569756A (en) * 2015-03-18 2016-05-11 第一拖拉机股份有限公司 Diesel engine single overhead camshaft driven valve rocker mechanism
CN108457714A (en) * 2018-03-17 2018-08-28 潍柴重机股份有限公司 A kind of rocking arm mounting structure

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Application publication date: 20220107