CN217177328U - Lightweight noise-reduction wear-resistant chain wheel in automobile engine - Google Patents

Abstract

The utility model discloses a lightweight noise-reduction wear-resistant chain wheel in an automobile engine, which is an external gear and comprises a wheel body, a shaft hole, lightening holes, lightening grooves, an oil storage ring groove and a plurality of groups of oil outlet holes, wherein the shaft hole is arranged on the central position of the wheel body; the advantages are that: the weight of the chain wheel is reduced by arranging the lightening grooves and lightening holes, the added lubricating oil is added into the oil storage ring groove by arranging the oil storage ring groove, and the lubricating oil in the oil storage ring groove is led out of the chain wheel through the multiple groups of oil outlets, so that the problem of waste of the lubricating oil caused by installation is solved, the lubricating oil in the oil storage ring groove continuously and slowly flows out, and the lubricating duration time is prolonged.

Description

Lightweight noise-reduction wear-resistant chain wheel in automobile engine

Technical Field

The utility model relates to a sprocket, concretely relates to wear-resisting sprocket of making an uproar falls in lightweight in automobile engine.

Background

Automobile engine timing mechanism mainly adopts chain drive, and the sprocket that uses in the automobile engine, tooth and wheel body are wide thick relatively, and along with global automobile output and technical level's promotion, people require more and more high to the lightweight of car, and the sprocket quality of existing usefulness is heavier. Chain drive often can produce abnormal sound, the reason that produces abnormal sound often is with the elasticity and the lubrication of chain relevant, because sprocket in the engine and chain cooperation transmission do not soak in the machine oil, often the lubricated machine oil that drips on the installation mostly all can drip on the ground, only a small part lubricating oil is attached to the tooth of sprocket and on the chain, the produced heat evaporation of these small part lubricating oil will be because of the cooperation friction between chain and the sprocket tooth very fast, it is shorter to play lubricated effect duration.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is that the sprocket on the existing automobile engine is heavy in weight, only a small part of lubricating oil for lubricating the sprocket and the chain is attached to the chain and the sprocket, most of the lubricating oil dropping on the ground causes waste, and the lubricating time of the small part of lubricating oil attached to the chain and the sprocket is short; the problem is directed at wear-resisting sprocket of making an uproar falls in lightweight in the automobile engine, for the external gear, its characterized in that, including wheel body, shaft hole, lightening groove, oil storage annular and multiunit oil outlet, the shaft hole is seted up on wheel body central point puts, and the lightening groove is seted up on wheel body side end face, and the oil storage annular is seted up along the cell wall of lightening groove, and multiunit oil outlet array is seted up in a plurality of tooth seams outside the wheel body, and the oil outlet makes oil storage annular and tooth seam intercommunication.

The utility model discloses technical scheme alleviates the weight of sprocket through seting up lightening groove and lightening hole, through seting up the oil storage annular, in adding the oil storage annular with the lubricating oil that adds, outside the sprocket was drawn forth to the lubricating oil in the oil storage annular to the many groups of oil outlets of rethread, when having solved the extravagant problem of the lubricating oil that causes when installing, utilized the lubricating oil in the oil storage annular to last slow outflow, still increased lubricated time that lasts.

The technical scheme of the utility model is optimized, the plurality of groups of oil outlets are three to six groups, each group of oil outlets has two holes, and the three to six groups are arranged to avoid the chain wheel from polishing the lubricating oil in the oil storage ring groove when not rotating, and in addition, the number of the chain sections is not multiple of the number of the chain wheels, and a small amount of oil outlets can lubricate each chain section; every group's oil outlet has two oil outlet because, the interval of tooth all is than shorter on the sprocket in the engine, and the reason that the oil storage annular was seted up to the below of going up the tooth again, and part tooth body below is in the fretwork state, and the hole is seted up the intensity that can influence the tooth body if much, causes the condition that the tooth sinks, and two holes just in time can keep the flow and can not produce too big influence to the structure.

It is right the utility model discloses technical scheme's preferred, subtract heavy groove and set up the degree of depth and be 2/5 to 1/3 of wheel body thickness, set up the wheel body that subtracts remaining thickness behind the heavy groove and need be connected with the pivot, thickness too thin bears not live power to will subtract heavy groove and set up so deeply firstly for a large amount of subtracting heavy, secondly in order can let the oil storage annular set up widen more, can add with many lubricating oil.

To the utility model discloses technical scheme's preferred, the edge of every tooth of wheel body periphery all has the bevel angle of chamfering, and the bevel angle of chamfering is for noise reduction when wanting the chain cooperation.

It is right the utility model discloses technical scheme's preferred, seted up the chip groove on the face that the lightening groove corresponds the wheel body, the edge burr of every lightening hole all need strike off originally, after seting up the chip groove, only need strike off the burr at chip groove edge, has alleviateed work load.

Compared with the prior art, the utility model beneficial effect who has is:

1. the technical proposal of the utility model reduces the weight of the chain wheel by arranging lightening slots and lightening holes;

2. the technical scheme of the utility model, through seting up the oil storage annular, in adding the oil storage annular with the lubricating oil that adds, outside the sprocket was drawn forth with the lubricating machine oil in the oil storage annular to the rethread multiple group's oil outlet, when having solved the problem of the waste of the lubricating machine oil that causes when installing, utilized the lubricating machine oil in the oil storage annular to last slow outflow, still increased lubricated time that lasts.

Drawings

FIG. 1 is a front oblique view of a lightweight noise-reducing wear-resistant sprocket in an automobile engine according to the present embodiment;

FIG. 2 is a rear oblique view of a lightweight noise-reducing wear-resistant sprocket in an automobile engine according to the present embodiment;

FIG. 3 is a front view of a lightweight noise-reducing wear-resistant sprocket in an automobile engine according to an embodiment;

fig. 4 is a cross-sectional view of the lightweight noise-reducing wear-resistant sprocket in the automobile engine of the embodiment taken along line a in fig. 3.

Detailed Description

The technical solution in the embodiment of the present invention will be described in detail with reference to fig. 1 to 4 in the embodiment of the present invention.

Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, and the two elements may be connected through an intermediate medium.

Example 1

As shown in fig. 1-4, a lightweight noise-reduction wear-resistant sprocket in an automobile engine is an external gear and is characterized by comprising a wheel body 1, a shaft hole, lightening holes, lightening grooves 2, oil storage ring grooves 3 and a plurality of groups of oil outlet holes 4, wherein the shaft hole is formed in the central position of the wheel body 1, the lightening holes are arranged on the periphery of the shaft hole in an aligned manner, the lightening grooves 2 are formed in one side end surface of the wheel body 1, the oil storage ring grooves 3 are formed along the groove walls of the lightening grooves 2, the plurality of groups of oil outlet holes 4 are formed in a plurality of tooth gaps outside the wheel body 1 in an array manner, and the oil outlet holes 4 enable the oil storage ring grooves 3 to be communicated with the tooth gaps.

The oil outlets 4 are three to six groups, the specific number is related to the number of teeth of the chain wheel, more teeth can be provided, fewer teeth can be provided, each group of oil outlets 4 is provided with two oil outlets 4, the three to six groups are arranged to avoid the lubricating oil in the oil storage ring groove 3 from running smoothly when the chain wheel does not rotate, and a small number of oil outlets 4 can also lubricate each chain as long as the number of the chain sections is not multiple of the teeth of the chain wheel; every group oil outlet 4 has two oil outlet 4 because, the interval of tooth all is shorter on the sprocket in the engine, sets up the reason of oil storage annular 3 in the below of tooth again, and part tooth body below is in the fretwork state, and the hole is seted up the intensity that can influence the tooth body if much, causes the condition that the tooth sinks, and two holes just in time can keep the flow and can not produce too big influence to the structure.

The diameter of the oil outlet hole 4 cannot be too large, so that the lubricating oil in the oil storage ring groove is prevented from flowing out quickly, and the diameter of the oil outlet hole 4 needs to enable the lubricating oil to flow out slowly like a gap.

The edge of the shaft hole is chamfered with an oblique angle, so that the shaft hole is convenient to be sleeved on the rotating shaft.

The depth of the lightening grooves 2 is 2/5-1/3 of the thickness of the wheel body 1, the wheel body 1 with the residual thickness after the lightening grooves 2 are arranged needs to be connected with a rotating shaft, the thickness is too thin to bear the bearing force, the lightening grooves 2 are arranged so deep, firstly, the lightening is carried out for a large amount, and secondly, more lubricating oil can be added for widening the oil storage ring grooves 3.

At least 1cm of thickness is reserved between the oil storage ring groove 3 and the outer wall of the wheel body 1, and the thickness cannot be too thin.

The edge of each tooth on the periphery of the wheel body is chamfered, and the chamfer angle is used for reducing noise when the chain is accidentally matched.

The face of the lightening groove 2 corresponding to the wheel body 1 is provided with the scrap removing groove 11, the lightening holes are located in the scrap removing groove 11, edge burrs of each lightening hole originally need to be scraped, after the scrap removing groove is formed, only the burrs at the edge of the scrap removing groove need to be scraped, and the workload is reduced.

The use method of the lightweight noise-reducing wear-resistant chain wheel in the automobile engine is as follows: with the shaft hole cover in the pivot of engine, fixed completion back, assemble the chain on the sprocket again, the back of finishing assembling, add a certain amount of lubricated machine oil toward oil storage annular 3 insides, the realization can glue some machine oil brushes on the chain with the brush, the sprocket is when rotating, inside lubricated machine oil can not thrown away because of centrifugal force's reason, lubricated machine oil is when every group's oil outlet 4 of process while, the lubricated machine oil of fractional part will flow out along oil outlet 4, enter into between the slot, the slot with the chain complex in, the oil on the slot can glue in the epaxial of chain, the chain is gluing oil in other slot department, thereby play the effect of comprehensive lubrication.

Above embodiment only is for explaining the utility model discloses a technical thought can not be injectd with this the utility model discloses a protection scope, all according to the utility model provides a technical thought, any change of doing on technical scheme basis all falls into the utility model discloses within the protection scope.

Claims (5)

1. The utility model provides a wear-resisting sprocket of making an uproar falls in lightweight in automobile engine, for the external gear, a serial communication port, including wheel body (1), the shaft hole, the lightening hole, subtract heavy groove (2), oil storage annular (3) and multiunit oil outlet (4), the shaft hole is seted up on wheel body (1) central point, the periphery in the shaft hole is seted up in the arrangement of lightening hole, subtract heavy groove (2) and set up on wheel body (1) a side end face, oil storage annular (3) are seted up along the cell wall that subtracts heavy groove (2), multiunit oil outlet (4) array is seted up in a plurality of slots outside wheel body (1), oil outlet (4) make oil storage annular (3) communicate with the slot.

2. The noise-reducing wear-resistant sprocket in an automobile engine in accordance with claim 1, wherein: the oil outlet holes (4) are three to six groups, and each group of oil outlet holes (4) is provided with two oil outlet holes.

3. The noise-reducing wear-resistant sprocket in an automobile engine in accordance with claim 1, wherein: the lightening grooves (2) are opened at a depth of 2/5-1/3 of the thickness of the wheel body (1).

4. The noise-reducing wear-resistant sprocket in an automobile engine in accordance with claim 1, wherein: the edge of each tooth of the wheel body is beveled.

5. The noise-reducing wear-resistant sprocket in an automobile engine in accordance with claim 1, wherein: the surface of the lightening groove (2) corresponding to the wheel body (1) is provided with a scrap removing groove (11), and the lightening hole is positioned in the scrap removing groove (11).

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