TWM474808U - Oil collection forced lubrication structure of crank shaft of model engine - Google Patents

Description

Model engine crankshaft oil-collecting lubrication structure

This creative department is related to a model engine structure, in particular to an oil-collecting lubrication structure of a model engine crankshaft.

According to FIG. 1 , it is a schematic diagram of a conventional model engine. The model engine is longitudinally provided with a cylinder 1 , and a piston 2 is disposed in the cylinder 1 , and the piston 2 is in the cylinder 1 . Moving along the axial direction of the cylinder 1, the piston 2 is further provided with a piston connecting rod 3, one end of the piston connecting rod 3 is pivoted under the piston 2, and the piston connecting rod 3 extends downwardly from the cylinder 1 The other end of the piston connecting rod 3 is pivotally provided with a crank shaft 4 disposed transversely below the cylinder 1 and extending outwardly of the engine body 1 , thereby when the model engine is running, The piston 2 reciprocates in the cylinder 1, and the crankshaft 4 is rotated by the piston link 3, so that the power generated by the operation of the model engine is output by the crankshaft 4.

Wherein, the crank shaft 4 is convexly disposed at one end of the long axis thereof, and the convex shaft 5 is offset from the axis of the crank shaft 4 and disposed along the axial direction of the crank shaft 4, the convex shaft 5 The radial outer circumferential side is further provided with a copper lining 6 for pivotally connecting the piston connecting rod 3 for interlocking, and the crank shaft 4 is recessed with a passageway at one end surface of the protruding shaft 5 7. The passage 7 extends along the axial direction of the crankshaft 4 to the middle of the crankshaft 4 and tapers toward its axis. In other words, the inner diameter of the passage 7 is gradually toward the end face of the crankshaft 4. Further, the middle side of the crankshaft 4 is further provided with a through opening 8 , and the through opening 8 is communicated with the passage 7 , and the crankshaft 4 is further provided with a lubrication hole 9 in the peripheral wall of the passage 7 . And the lubrication hole 9 extends toward the protruding shaft 5, the end of the lubrication hole 9 extends through the peripheral wall of the protruding shaft 5, and further extends through the copper liner 6, whereby when the model engine is running, the fuel and Air-mixed oil and gas A cycle through which the piston 2 reciprocates passes through the port 8 and traverses the passage 7 and then enters the cylinder 1 for operation of the model engine, and when the oil and gas traverses the passage 7, The centrifugal force generated by the high-speed rotation of the crankshaft 4 causes the oil and gas to be slid outwardly toward the inner peripheral wall of the passage 7, and is attached to the inner peripheral wall of the passage 7, and the inner peripheral wall which is gradually expanded along the passage 7 will follow the trend. The oil and gas flows to the outer side of the passage 7. At this time, part of the oil and gas system attached to the inner peripheral wall of the passage 7 will enter the lubrication hole 9 during the process of outward smashing, and diffuse to the copper lining 6, and the crank can be applied to the crank Lubrication is provided when the shaft 4 rotates.

However, in the course of the operation of the conventional model engine, when the oil and gas passes through the passage 7, the oil and gas entering the lubrication hole 9 is very scarce. Therefore, when the crankshaft 4 rotates and pushes the oil and gas into the model engine, the crankshaft The convex shaft 5 of the 4 and the pivotal joint of the piston connecting rod 3 are subjected to great damping due to the contact friction between the operating processes, and the crankshaft 4 is not smoothly rotated when the model engine is running, so that the oil and gas enters the cylinder. 1. The power output efficiency is degraded, and even when the model engine is operated at a high speed of more than 18,000 rpm, the copper lining 6 of the protruding shaft 5 and the pivotal connection of the piston rod 3 is more damaged by friction. In view of this, the creators of this case, after observing the above shortcomings, believe that the traditional model engine does have the need for further improvement, and this creation comes with it.

The main purpose of this creation is to provide a forced oil lubrication structure of the model engine crankshaft, which can effectively improve the lubrication of the crankshaft and the piston rod axle pivot joint, which not only makes the crankshaft and the piston connecting rod shaft pivotally meet. Damaged, and the crankshaft running oil and gas propulsion is smoother, which greatly improves engine efficiency and horsepower output.

In order to achieve the above object, the present invention provides a model for the oil-collecting lubrication structure of a crankshaft of a model engine, which comprises a body, a convex shaft is convexly disposed at one end of the body, and the convex axis is offset from the axis of the body. And disposed along an axial direction of the body, the body is recessed with a channel at an end surface of the protruding shaft, and the channel extends along the axial direction of the body to the middle portion of the body, and the middle portion of the body is opened a port, the port is connected to the channel, and the peripheral wall of the channel is provided with a lubrication hole, and the lubrication hole extends toward the convex axis, and the terminal of the lubrication hole The lubricating oil hole is penetrated from the peripheral wall of the channel to the peripheral wall of the protruding shaft, and the body is further recessed with an oil collecting groove on the peripheral wall of the channel, and the oil collecting groove is disposed on the lubricating oil. At the hole, the lubrication hole is disposed in the oil collecting groove.

The oil-carrying forced lubrication structure of the crankshaft of the model engine provided by the present invention is characterized in that the piston shaft is pivotally coupled to the piston connecting rod, and the oil collecting groove is used to collect the oil and gas to form a pre-existing effect, and then the lubricating hole is passed through the lubricating hole. When the engine is running, the channel diffuses to the outer peripheral wall of the protruding shaft, so that the oil and gas can provide lubrication between the protruding shaft and the piston connecting rod, thereby effectively increasing the pivotal bearing of the crankshaft and the piston connecting rod. Lubrication not only makes the crankshaft and the piston connecting rod pivot joints difficult to damage, but also makes the crankshaft run oil and gas propulsion more smoothly, thus greatly improving engine efficiency and horsepower output.

1‧‧‧ cylinder

2‧‧‧Piston

3‧‧‧Piston connecting rod

4‧‧‧ crankshaft

5‧‧‧Shaft axis

6‧‧‧copper lining

7‧‧‧ channel

8‧‧‧ mouth

9‧‧‧Lubrication hole

10‧‧‧ Ontology

11‧‧‧ Shield

12‧‧‧Shaft axis

13‧‧‧ channel

14‧‧‧ mouth

15‧‧‧ oil tank

16‧‧‧Lubrication holes

17‧‧‧copper lining

200‧‧‧Model Engine

210‧‧‧ cylinder

220‧‧‧Piston

230‧‧‧Piston connecting rod

240‧‧‧ crank chamber

250‧‧‧ scavenging port

260‧‧‧air inlet

Figure 1 is a schematic diagram of a conventional model engine.

Figure 2 is a perspective view of the creation.

Figure 3 is a cross-sectional view of the creation.

Figure 4 is a schematic diagram of the use of this creation.

Figure 5 is a partial enlarged view of the creation.

Please refer to FIG. 2 and FIG. 3 , which are perspective views and cross-sectional views of the present invention, which disclose a forced oil lubrication structure of a crankshaft of a model engine, and the oil-collecting lubrication structure of the crankshaft of the model engine includes There is a body 10, the body 10 has a convex disk 11 protruding radially from one end of the main axis 10, and a convex shaft 12 is protruded from the end surface of the convex disk 11, and the convex shaft 12 is deviated. An axial center of the body 10 is disposed along an axial direction of the body 10, and a radially outer circumferential side of the protruding shaft 12 is further sleeved with a copper liner 17, and the body 10 is disposed at one end of the convex disk 11. The end face is recessed with a passage 13 extending along the axial direction of the body 10 to the middle of the body 10 and tapered toward the axis thereof, in other words, the inner diameter of the passage 13 is directed toward the body 10 The end face is gradually expanding, A port 14 is formed in the middle of the body 10, and the port 14 is connected to the channel 13. The main feature of the present invention is that the body 10 is recessed with an oil collecting groove 15 on the peripheral wall of the channel 13. The oil collecting groove 15 is disposed between the opening 14 and the opening of the channel 13 at the end surface of the protruding plate 11, and the oil collecting groove 15 and the opening 14 are disposed on the same side of the body 10, and the set The oil groove 15 and the opening 14 are disposed along the axial direction of the body 10, and the oil collecting groove 15 is gradually increased in depth from the opening 14 in a direction away from the opening 14. The body 10 is in the oil collecting groove 15 The lubrication hole 16 extends obliquely toward the protruding shaft 12 , and the end of the lubrication hole 16 extends through the peripheral wall of the protruding shaft 12 .

In order to further understand the characteristics of this creation, the use of technical means and the expected results, we will use the way of using this creation. I believe that we can have a deeper and more specific understanding of this creation, as follows: Please continue to refer to As shown in FIG. 4 and FIG. 5, the body 10 can be disposed in a crank chamber 240 of a model engine 200, and is pivoted by a male shaft 12 and a piston rod 230 that are sleeved with the copper liner 17. Linking and interlocking, and the port 14 of the body 10 corresponds to the air inlet 260 of the model engine 200, whereby when the model engine 200 is running, the piston 220 of the model engine 200 will pass through the piston The connecting rod 230 rotates the body 10 so that the opening 14 of the body 10 can communicate with the air inlet 260 in a cycle in which the piston 220 reciprocates, so that the oil and gas mixed with the fuel also follows the piston 220. The cycle of reciprocating motion passes through the port 14 and enters the passage 13 and then passes through the passage 13 through the crank chamber 240 and then passes over the side of the cylinder 210 of the model engine 200. Scavenging port 250, finally entering Cylinder 210, 200 required for the operation of the engine model.

When the oil and gas passes through the passage 13, the oil and gas will adhere to the inner peripheral wall of the passage 13 according to the centrifugal force generated by the high-speed rotation of the body 10. Therefore, the oil collecting groove 15 provided on the peripheral wall of the passage 13 can be For collecting oil and gas, and forming a pre-existing effect, the oil and gas is accumulated in the oil collecting tank 15, and then the centrifugal force of the rotation of the body 10 is used to pass the oil and gas accumulated in the oil collecting tank 15 through the lubricating hole 16 and a convex shaft 12 and a peripheral wall of the copper lining 17 The copper lining 17 and the piston connecting rod 230, that is, the pivot shaft 12 and the piston connecting rod 230 pivotally receive the oil film to form an oil film, thereby achieving the effect of forced lubrication, and utilizing the body The channel 13 of the 10 is under the oil and gas to effectively improve the lubrication of the body 10 and the piston connecting rod 230, so that the body 10 is operated more smoothly, thereby greatly improving the engine efficiency and the horsepower output.

It is worth mentioning that the oil collecting groove 15 can accumulate oil and gas to form a pre-existing effect, so that the oil and gas can more easily enter the lubricating hole 16 to achieve the lubricating effect, and the body 10 and the piston connecting rod 230 can be greatly increased. Lubrication, so that the body can be operated at a high speed of more than 18,000 rpm, the oil and gas can be fully lubricated by the centrifugal force at the receiving portion of the body 10 and the piston connecting rod 230, so that the body 10 and the piston connecting rod 230 are engaged. The copper lining 17 at the place is not easily damaged.

It is worth mentioning that the oil-carrying forced lubrication structure of the crankshaft of the model engine of the present invention can use an existing crankshaft to add an oil sump to form a pre-existing effect, thereby enhancing the opportunity for the oil and gas to enter its lubrication hole. In order to improve the lubrication effect, the author can use the existing proportion of oil and gas intake to achieve the effect of improving lubrication, without changing the oil and gas ratio settings, affecting the operation of the model engine, and without changing the crankshaft. Even the structural design of the model engine does not require the addition of other components for improving the lubrication effect, so that the creation can reduce the cost of improving the lubrication effect and achieve economic benefits.

Hereby, the characteristics of this creation and its achievable expected effects are as follows: The oil-collecting forced lubrication structure of the crankshaft of the model engine of this creation, through which the oil collecting tank collects oil and gas to form a pre-existing effect, and through the lubrication hole, The oil and gas is diffused from the passage to the outer peripheral wall of the convex shaft to provide a lubricating effect between the convex shaft and the piston rod, thereby effectively improving lubrication of the body and the piston rod receiving portion, not only the body and the body The piston connecting rod is not easily damaged, and the body is operated more smoothly, thereby greatly improving engine efficiency and horsepower output.

In summary, this creation has its excellent progress and practicality in similar products. At the same time, it has investigated the technical information about such structures at home and abroad. The same structure has not been found in the literature. This creation has already possessed new types of patent requirements, and applied for it according to law.

However, the above-mentioned ones are only one of the preferred embodiments of the present invention, and the equivalent structural changes in the application of the present specification and the scope of the patent application are intended to be included in the scope of the present patent.

10‧‧‧ Ontology

11‧‧‧ Shield

12‧‧‧Shaft axis

13‧‧‧ channel

14‧‧‧ mouth

15‧‧‧ oil tank

16‧‧‧Lubrication holes

17‧‧‧copper lining

Claims (3)

An oil-collecting lubrication structure for a crankshaft of a model engine, comprising: a body, a convex shaft is convexly disposed at one end of the body, and the convex shaft is offset from the axial center of the body and along the axial direction of the body The body is recessed with a channel at one end surface of the protruding shaft, and the channel extends along the axial direction of the body to the middle portion of the body, and the middle portion of the body defines a through opening, and the opening Connected to the channel, and the peripheral wall of the channel is provided with a lubrication hole, and the lubrication hole extends toward the convex axis, and the end of the lubrication hole penetrates the peripheral wall of the protruding shaft, so that the lubrication hole is made by the channel The peripheral wall penetrates into the peripheral wall of the protruding shaft, and the body is further recessed with an oil collecting groove on the peripheral wall of the passage, and the oil collecting groove is disposed at the lubricating hole, so that the lubricating hole is disposed in the oil collecting groove. The oil-collecting forced lubrication structure of the crankshaft of the model engine according to the first aspect of the invention, wherein the lubrication hole, the oil collecting groove and the opening are disposed on the same side of the body, and the oil collecting groove and the through hole The mouthpiece is disposed along the axial direction of the body, and the port is disposed at the bottom of the channel. The oil-collecting forced lubrication structure of the model engine crankshaft according to claim 1, wherein the oil collecting groove gradually increases in depth away from the opening.