Oil throwing connecting rod

Abstract

The utility model discloses an oil slinging connecting rod which comprises a connecting rod body and a mounting cover, the mounting cover is connected to the end of the connecting rod body, the connecting rod body and the mounting cover form a second connecting hole, and an oil slinging spoon is formed on the mounting cover. The connecting line of the oil throwing spoon and the circle center of the second connecting hole and the center line of the connecting rod body form an obtuse angle ranging from 125 degrees to 145 degrees, the oil throwing spoon comprises a spoon handle connected to the outer surface of the installation cover and a spoon tip connected to the outer end of the spoon handle, the thickness of the spoon tip is smaller than that of the spoon handle, and the spoon tip and the spoon handle are distributed in an obtuse angle mode. The utility model solves the problems that the existing connecting rod can only rotate in one direction to stir lubricating oil at the bottom of an engine, and the connecting rod in another type of engine rotates reversely and cannot stir the lubricating oil, and an obtuse angle of 125-145 degrees is formed between the connecting rod and the center line of the connecting rod. And the connecting rod can stir the lubricating oil when rotating forwards and reversely in engines of different models.

Description

Technical Field

[0001] The utility model relates to the technical field of engine connecting rods, in particular to an oil-slinging connecting rod. Background Art

[0002] In general-purpose small gasoline or diesel engines, in order to improve the lubrication effect of the connecting rod, an oil slinging spoon is formed on the outer surface of the connecting rod big end. Usually, the setting of the oil slinging spoon only considers the oil slinging effect of a single model engine.

[0003] In the production of other types of engines, it is necessary to make additional molds for the connecting rod, which greatly increases the production cost. Therefore, in order to meet the different rotational outputs of small engines of different models and at the same time enable the oil-slinging key to ensure the lubrication effect of the connecting rod, this oil-slinging connecting rod is designed. Utility Model Content

[0004] The purpose of the utility model is to provide an oil-slinging connecting rod. By arranging an oil-slinging spoon distributed at an obtuse angle of 125° to 145° with the center line of the connecting rod, the lubricating oil can be stirred in engines of different models when the connecting rod rotates forward or reverse, thereby improving the application range of the connecting rod, avoiding additional connecting rod mold opening during the production process of engines of different models, and saving design costs and manufacturing costs.

[0005] The utility model provides the following technical solution: an oil-slinging connecting rod, comprising a connecting rod body and a mounting cover, wherein the mounting cover is connected to the end of the connecting rod body, the connecting rod body and the mounting cover form a second connecting hole, an oil-slinging spoon is formed on the mounting cover, and a line connecting the oil-slinging spoon and the center of the second connecting hole and a center line of the connecting rod body form an obtuse angle of 125° to 145°.

[0006] In order to increase the splash distance of the lubricating oil, the oil-slinging spoon comprises a spoon handle connected to the outer surface of the mounting cover and a spoon tip connected to the outer end of the spoon handle, and the thickness of the spoon tip is smaller than that of the spoon handle.

[0007] In order to enable the oil-slinging spoon to stir the lubricating oil when the connecting rod rotates forward or reversely, the spoon tip and the spoon handle are distributed at an obtuse angle, and the width of the oil-slinging spoon gradually decreases from the spoon handle to the spoon tip.

[0008] In order to increase the amount of splashing lubricating oil, the connecting rod body comprises a first connecting hole, a rod body and a rod head, and an oil-slinging hole is opened on the inner wall of the rod head.

[0009] In order to connect the rod head and the mounting cover to the crankshaft, the rod head and the mounting cover are respectively in the form of a lower semicircle and an upper semicircle, forming a second connecting hole.

[0010] In order to increase the area of ​​the connecting rod and the oil collecting surface of the lubricating oil, a first oil-slinging boss is formed on the upper and lower end surfaces of the rod head, and a second oil-slinging boss is also formed on the two end surfaces of the mounting cover.

[0011] In order to increase the lubricating oil brought out by the rotation of the first oil-slinging boss and the second oil-slinging boss, an oil-slinging groove is formed between the first oil-slinging boss and the second oil-slinging boss.

[0012] Compared with the prior art, the beneficial effect achieved by the utility model is that by arranging the oil slinger which is distributed at an obtuse angle of 125° to 145° with the center line of the connecting rod, the lubricating oil can be stirred in the forward and reverse rotation of the connecting rod in engines of different models, thereby improving the application range of the connecting rod, avoiding the need for additional connecting rod mold opening during the production process of engines of different models, and saving design costs and manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0015] Figure 2 It is a front view of the utility model;

[0016] Figure 3 It is a side view of the utility model;

[0017] In the figure: 1. connecting rod body; 11. first connecting hole; 12. rod body; 13. rod head; 131. first oil-spinning boss; 2. mounting cover; 21. oil-spinning spoon; 211. spoon handle; 212. spoon tip; 22. second oil-spinning boss; 3. oil-spinning hole; 4. oil-spinning groove; 5. second connecting hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0019] See also Figures 1 to 3The utility model provides a technical solution: an oil-slinging connecting rod, comprising a connecting rod body 1 and a mounting cover 2, the mounting cover 2 being connected to the end of the connecting rod body 1, the connecting rod body 1 and the mounting cover 2 forming a second connecting hole 5, the second connecting hole 5 being sleeved on the crankshaft of the engine, an oil-slinging spoon 21 being formed on the mounting cover 2, a line connecting the oil-slinging spoon 21 and the center of the second connecting hole 5 and a center line of the connecting rod body 1 forming an obtuse angle of 125° to 145°, the oil-slinging spoon 21 arranged at this angle enables the connecting rod to rotate forward or reversely to stir up the lubricating oil at the bottom of the engine, to lubricate the connecting rod, meet the use requirements of engines of different models, avoid additional mold opening for the connecting rod, and reduce design costs and production costs.

[0020] like Figure 3 As shown, the oil-slinging spoon 21 includes a spoon handle 211 connected to the outer surface of the mounting cover 2 and a spoon tip 212 connected to the outer end of the spoon handle 211. The thickness of the spoon tip 212 is smaller than that of the spoon handle 211, and a step is formed at the junction of the two. The thickness of the spoon tip 212 is 2-4 mm, and the thickness of the spoon handle 211 is 4-6 mm. When the lubricating oil is rotated and stirred, the lubricating oil on the spoon handle 211 is also spun onto the spoon tip 212, and then the lubricating oil is spun off through the spoon tip 212, thereby increasing the centrifugal force on the lubricating oil, expanding the lubricating area of ​​the lubricating oil, and improving the lubricating effect.

[0021] like Figure 2 As shown, the spoon tip 212 and the spoon handle 211 are distributed at an obtuse angle, and the width of the oil-slinging spoon 21 gradually decreases from the spoon handle 211 to the spoon tip 212. The width of the spoon handle 211 is 11-13 mm, and the tip thickness of the spoon tip 212 is 5-6 mm, thereby increasing the contact area between the spoon tip 212 and the lubricating oil. The spoon tip 212 and the spoon handle 211 are distributed at an obtuse angle, so that the forward and reverse rotation of the connecting rod can enhance the stirring amplitude of the lubricating oil, drive the lubricating oil to splash, lubricate the components in the engine, and improve the lubrication effect.

[0022] like Figure 1 As shown, the connecting rod body 1 includes a first connecting hole 11, a rod body 12 and a rod head 13. The first connecting hole 11 is connected to the piston through a piston pin. An oil-slinging hole 3 is opened on the inner wall of the rod head 13. The oil-slinging hole 3 increases the splashing area of ​​the lubricating oil and improves the lubrication effect.

[0023] The rod head 13 and the mounting cover 2 are respectively in the shape of a lower semicircle and an upper semicircle, forming a second connecting hole 5 connected to the crankshaft, and bolts are used to enhance the connection strength between the rod head 13 and the mounting cover 2.

[0024] A first oil-slinging boss 131 is formed on the upper and lower end surfaces of the rod head 13, and a second oil-slinging boss 22 is also formed on the two end surfaces of the mounting cover 2. By forming the first oil-slinging boss 131 and the second oil-slinging boss 22, the contact area between the connecting rod and the lubricating oil is increased, the amount of splashing lubricating oil is increased, and the lubrication effect is enhanced.

[0025] An oil-slinging groove 4 is formed between the first oil-slinging boss 131 and the second oil-slinging boss 22 , and the splashing lubricating oil is further increased through the oil-slinging groove 4 , thereby further improving the lubrication effect.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An oil-slinging connecting rod, comprising a connecting rod body and a mounting cover, wherein the mounting cover is connected to the end of the connecting rod body, and is characterized in that: The connecting rod body and the mounting cover form a second connecting hole, and an oil slinging spoon is formed on the mounting cover. The connecting line of the oil slinging spoon and the center of the second connecting hole and the center line of the connecting rod body form an obtuse angle of 125° to 145°.

2. The oil-slinging connecting rod according to claim 1, characterized in that: The oil throwing spoon comprises a spoon handle connected to the outer surface of the mounting cover and a spoon tip connected to the outer end of the spoon handle, and the thickness of the spoon tip is smaller than that of the spoon handle.

3. The oil-slinging connecting rod according to claim 2, characterized in that: The spoon tip and the spoon handle are distributed at an obtuse angle, and the width of the oil-slinging spoon gradually decreases from the spoon handle to the spoon tip.

4. The oil-slinging connecting rod according to claim 1, characterized in that: The connecting rod body comprises a first connecting hole, a rod body and a rod head, and an oil-slinging hole is opened on the inner wall of the rod head.

5. The oil-slinging connecting rod according to claim 4, characterized in that: The rod head and the mounting cover are respectively in the form of a lower semicircle and an upper semicircle, forming a second connecting hole.

6. The oil-slinging connecting rod according to claim 4, characterized in that: A first oil-spinning boss is formed on the upper and lower end surfaces of the rod head, and a second oil-spinning boss is also formed on the two end surfaces of the mounting cover.

7. The oil-slinging connecting rod according to claim 6, characterized in that: An oil-slinging groove is formed between the first oil-slinging boss and the second oil-slinging boss.

Images