CN214465520U

CN214465520U - Crankshaft oil hole structure for improving torsional fatigue strength of crankshaft

Info

Publication number: CN214465520U
Application number: CN202120182036.1U
Authority: CN
Inventors: 郑澎; 姜汉龙; 綦光林; 刘晓琳; 隋锡仕
Original assignee: Qingdao Jinruite Garden Tools Co ltd
Current assignee: Qingdao Jinruite Garden Tools Co ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-10-22
Anticipated expiration: 2031-01-22

Abstract

The utility model relates to the technical field of crankshafts, in particular to a crankshaft oil hole structure for improving torsional fatigue strength of a crankshaft, which comprises a plurality of main shaft rods, wherein the two ends of each main shaft rod are respectively provided with a first oil outlet communicated with a first interlayer, a liquid inlet pipe communicated with the first interlayer is embedded in the middle position of the circumferential outer wall of each main shaft rod, the circumferential outer wall of each main shaft rod is provided with a connecting plate, and a connecting rod shaft is arranged between the connecting plates on two adjacent main shaft rods; this improve bent axle torsional fatigue strength's bent axle oilhole structure, a plurality of main shaft poles are located same central axis, and connect the connecting rod axle, make up into a complete bent axle, first oil outlet has been seted up on the main shaft pole, the cooperation feed liquor pipe, be convenient for toward the inside lubricating oil that fills of main shaft pole, the inside second intermediate layer of connecting rod axle and the inside first intermediate layer of main shaft pole communicate each other, under the cooperation of second oil outlet, be convenient for spill over from the connecting rod axle, carry out the lubricated use that corresponds, improve bent axle torsional fatigue strength.

Description

Crankshaft oil hole structure for improving torsional fatigue strength of crankshaft

Technical Field

The utility model relates to a bent axle technical field specifically is an improve bent axle torsional fatigue strength's bent axle oilhole structure.

Background

The crankshaft is one of the most important parts in the internal combustion engine, the strength of the crankshaft is directly related to the reliability of the whole engine, the failure modes of the crankshaft mainly comprise bending fatigue failure and torsional fatigue failure, when the crankshaft runs in the engine, lubricating oil is needed to lubricate between a journal and a bearing bush, and the lubricating oil is supplied by circulating through an oil hole on the journal of the crankshaft;

in order to better increase the service life of bent axle and improve bent axle torsional fatigue strength, need carry out the corresponding lubricating oil that provides to the bent axle, increase the degree of lubrication, better drive is used, increases different positions bent axle oilhole, better use of lubricating.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an improve bent axle torsional fatigue strength's bent axle oilhole structure to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an improve bent axle torsional fatigue strength's bent axle oilhole structure, includes a plurality of main shaft pole, the inside hollow form that is of main shaft pole, and hollow region is first intermediate layer, the first oil outlet that communicates with first intermediate layer is all seted up to main shaft pole both ends department, main shaft pole circumference outer wall intermediate position inlays the feed liquor pipe that is equipped with and communicates with first intermediate layer, feed liquor pipe tip has set the rubber buffer, be equipped with the connecting plate on the main shaft pole circumference outer wall, two are adjacent be equipped with the connecting rod axle between the connecting plate on the main shaft pole, the inside hollow form that is of connecting rod axle, and hollow region is the second intermediate layer, set up the second oil outlet of a plurality of and second intermediate layer intercommunication on the connecting rod axle circumference outer wall.

Preferably, the main shaft rods are distributed at equal intervals, and bearings are sleeved on the main shaft rods at the two ends.

Preferably, the bearing inner ring is welded and fixed with the outer wall of the main shaft rod.

Preferably, the connecting plate and the main shaft rod are of an integrally formed structure, and two ends of the connecting rod shaft and the connecting plate are of an integrally formed structure.

Preferably, the first interlayer and the second interlayer are communicated with each other through a connecting plate.

Preferably, the feed liquor pipe is fixed with the main shaft rod butt fusion, the diameter and the feed liquor pipe internal diameter looks adaptation of rubber buffer.

Preferably, the second oil outlet holes are distributed in an annular shape at equal intervals.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a plurality of main shaft poles are located same center axis, equidistant distribution cooperation connecting plate, and connect the connecting rod axle, make up into a complete bent axle, first oil outlet has been seted up on the main shaft pole, cooperation feed liquor pipe, be convenient for toward the inside lubricating oil that fills of main shaft pole, the inside second intermediate layer of connecting rod axle communicates with the inside first intermediate layer of main shaft pole each other, let the lubricating oil of adding infect comprehensively, under the cooperation of second oil outlet, be convenient for spill over from the connecting rod axle, carry out the lubricated use that corresponds, improve bent axle torsional fatigue strength.

2. The utility model discloses the cooperation of bearing, the nimble drive of the whole bent axle of being convenient for is used, and the cooperation of rubber buffer, the shutoff feed liquor pipe of being convenient for carries out appropriate supplementary lubricating oil and uses.

Drawings

FIG. 1 is a schematic view of the overall structure of the crankshaft oil hole structure for improving the torsional fatigue strength of the crankshaft of the present invention;

FIG. 2 is a schematic view of the combined structure of the crankshaft oil hole structure liquid inlet pipe and the rubber plug for improving the torsional fatigue strength of the crankshaft of the present invention;

fig. 3 is the utility model discloses an improve bent axle torsional fatigue strength's bent axle oilhole structure part section structure sketch map.

The various reference numbers in the figures mean:

1. a main shaft rod; 10. a first oil outlet hole; 11. a liquid inlet pipe; 110. a rubber plug; 12. a first interlayer;

2. a link shaft; 20. a second oil outlet hole; 21. a second interlayer;

3. a bearing;

4. a connecting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to 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", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the 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 construed 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 present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Referring to fig. 1-3, the present invention provides a technical solution:

the utility model provides an improve bent axle torsional fatigue strength's bent axle oilhole structure, including a plurality of main shaft pole 1, 1 inside hollow form that is of main shaft pole, and hollow region is first intermediate layer 12, 1 both ends department of main shaft pole all sets up the first oil outlet 10 with first intermediate layer 12 intercommunication, 1 circumference outer wall intermediate position of main shaft pole inlays and is equipped with the feed liquor pipe 11 with first intermediate layer 12 intercommunication, 11 tip of feed liquor pipe have set rubber buffer 110, be equipped with connecting plate 4 on the 1 circumference outer wall of main shaft pole, be equipped with connecting rod axle 2 between the connecting plate 4 on two adjacent main shaft poles 1, 2 inside hollow forms that are of connecting rod axle, and hollow region is second intermediate layer 21, set up the second oil outlet 20 of a plurality of and the 21 intercommunications of second intermediate layer on the 2 circumference outer walls of connecting rod axle.

In this embodiment, main shaft 1 is equidistant distribution, and all overlaps on the main shaft 1 that is located both ends and is equipped with bearing 3, and bearing 3's cooperation is used, and the rotation of the whole bent axle of being convenient for is stable nimble is used.

Furthermore, the inner ring of the bearing 3 is welded and fixed with the outer wall of the main shaft rod 1, so that the connection stability is improved.

Specifically, connecting plate 4 and main shaft pole 1 are integrated into one piece structure, and connecting rod axle 2 both ends all are integrated into one piece structure with connecting plate 4, increase holistic connection stability.

Secondly, the first interlayer 12 and the second interlayer 21 are communicated with each other through the connecting plate 4, so that the first interlayer and the second interlayer can be communicated with each other after lubricating oil is added, and better lubrication can be performed.

It should be noted that the liquid inlet pipe 11 is fixed to the main shaft rod 1 by welding, and the diameter of the rubber stopper 110 is adapted to the inner diameter of the liquid inlet pipe 11, so as to facilitate the supply of a proper amount of lubricating oil to the main shaft rods 1 at different positions.

In addition, second oil outlet 20 is the annular equidistant distribution, and second oil outlet 20 cooperates the use, and the lubricating oil is evenly spilled over to the 2 circumference outer walls of connecting rod axle of being convenient for, is connected more nimble with external connecting piece, increases the bent axle and twists reverse fatigue strength.

The improvement bent axle of this embodiment twists reverse fatigue strength's bent axle oilhole structure is when using, the manual work piece that will connect of user corresponds with connecting rod axle 2 and is connected, then manual lubricating oil with needs adds different main shaft pole 1 from feed liquor pipe 11 in proper order, first oil outlet 10 overflows partial lubricating oil, lubricate main shaft pole 1, lubricating oil enters into second intermediate layer 21 from first intermediate layer 12, and overflow from second oil outlet 20, infect connecting rod axle 2 circumference outer wall, increase the degree of lubrication, and then increase bent axle twist reverse fatigue strength, increase holistic life, under bearing 3's cooperation, better and fixture block fixed connection, more nimble use of driving.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an improve bent axle torsional fatigue strength's bent axle oilhole structure, includes a plurality of main shaft pole (1), its characterized in that: spindle pole (1) is inside to be hollow form, and hollow region is first intermediate layer (12), spindle pole (1) both ends department all sets up first oil outlet (10) with first intermediate layer (12) intercommunication, spindle pole (1) circumference outer wall intermediate position inlays feed liquor pipe (11) that are equipped with and first intermediate layer (12) intercommunication, feed liquor pipe (11) tip has set rubber buffer (110), be equipped with connecting plate (4) on spindle pole (1) circumference outer wall, two are adjacent be equipped with connecting rod axle (2) between connecting plate (4) on spindle pole (1), connecting rod axle (2) inside is hollow form, and hollow region is second intermediate layer (21), set up second oil outlet (20) of a plurality of and second intermediate layer (21) intercommunication on connecting rod axle (2) circumference outer wall.

2. The crankshaft oil hole structure for improving the torsional fatigue strength of the crankshaft as set forth in claim 1, wherein: the main shaft rods (1) are distributed at equal intervals, and bearings (3) are sleeved on the main shaft rods (1) at the two ends.

3. The crankshaft oil hole structure for improving the torsional fatigue strength of the crankshaft as set forth in claim 2, wherein: and the inner ring of the bearing (3) is welded and fixed with the outer wall of the main shaft rod (1).

4. The crankshaft oil hole structure for improving the torsional fatigue strength of the crankshaft as set forth in claim 1, wherein: the connecting plate (4) and the main shaft rod (1) are of an integrally formed structure, and two ends of the connecting rod shaft (2) and the connecting plate (4) are of an integrally formed structure.

5. The crankshaft oil hole structure for improving the torsional fatigue strength of the crankshaft as set forth in claim 1, wherein: the first interlayer (12) and the second interlayer (21) are communicated with each other through a connecting plate (4).

6. The crankshaft oil hole structure for improving the torsional fatigue strength of the crankshaft as set forth in claim 1, wherein: feed liquor pipe (11) and main shaft rod (1) butt fusion are fixed, the diameter and the feed liquor pipe (11) internal diameter looks adaptation of rubber buffer (110).

7. The crankshaft oil hole structure for improving the torsional fatigue strength of the crankshaft as set forth in claim 1, wherein: the second oil outlet holes (20) are distributed in an annular shape at equal intervals.