CN220539706U - Lubrication system - Google Patents

Abstract

The utility model discloses a lubrication system, which comprises a crankcase, wherein a crankshaft transmission mechanism is arranged in the crankcase, the crankcase is provided with a cover, an oil pump is integrated on the cover, an oil pump gear is arranged at the output end of the oil pump, and the oil pump gear is in transmission connection with the crankshaft transmission mechanism; and an engine oil collector and an engine oil pump outlet are arranged at the bottom of the cover. The pressure lubrication system is adopted, and the pressurization and acceleration of the oil pump are adopted, so that the oil lubrication required by the motion friction pair in the engine can be effectively provided, the components of the engine are fully lubricated during high-speed operation, the friction and abrasion are reduced, and the service life of the engine is prolonged; the oil pump is integrated on the cover of the crankcase, so that the whole lubricating system is more compact in arrangement, saves space, and is suitable for limiting the engine space by modern vehicles and equipment.

Description

Lubrication system

Technical Field

The utility model belongs to the technical field of engine lubrication, and particularly relates to a lubrication system.

Background

Current internal combustion engine lubrication systems typically employ an oil pump to pump lubrication oil from a sump to a crankshaft drive. However, such conventional lubrication systems face problems of poor lubrication effect, insufficiently compact arrangement, and large weight.

And due to the design of the conventional lubrication system, the transmission of the lubricating oil may form an uneven distribution on the crankshaft, thereby causing stress concentration areas to be generated on the crankshaft under high-load operation, and increasing the risk of breakage of the crankshaft.

Accordingly, the present utility model provides a lubrication system to solve the above-mentioned problems.

Disclosure of Invention

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the lubrication system comprises a crankcase, wherein a crankshaft transmission mechanism is arranged in the crankcase, the crankcase is provided with a cover, an oil pump is integrated on the cover, an oil pump gear is arranged at the output end of the oil pump, and the oil pump gear is in transmission connection with the crankshaft transmission mechanism; and an engine oil collector and an engine oil pump outlet are arranged at the bottom of the cover.

Further, the both ends of crankcase are equipped with first support and second support respectively, the crankcase both sides all are equipped with the third support, be equipped with the oil bracket between second support and the crank drive mechanism.

Further, an oil inlet channel is formed in the first support, the oil inlet channel is communicated with an oil pump outlet, an oil distributing port communicated with the oil inlet channel is further formed in the first support, and oil outlet channels leading to the third support are formed in the first support and the second support.

Further, the valve lubrication assembly is arranged on the third support, an oil column installation hole is formed in the third support, one end of the oil distributing port is led to the oil column installation hole, and the other end of the oil distributing port is led to the oil distributing support.

Further, a bracket oil return passage is further arranged on the third bracket.

Further, the valve lubrication assembly comprises a valve chamber, an oil inlet column is arranged in the valve chamber, one end of the oil inlet column is communicated with an oil passing column mounting hole, the oil inlet column is further communicated with a valve chamber oil duct, and an oil passing bolt is arranged at the top of the oil inlet column.

Further, a valve oil return passage is arranged at the bottom of the valve chamber and is communicated with the support oil return passage.

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

1. the pressure lubrication system is adopted, and the pressurization and acceleration of the oil pump are adopted, so that the oil lubrication required by the motion friction pair in the engine can be effectively provided, the components of the engine are fully lubricated during high-speed operation, the friction and abrasion are reduced, and the service life of the engine is prolonged; the oil pump is integrated on the cover of the crankcase, so that the whole lubricating system is more compact in arrangement, saves space, and is suitable for limiting the engine space by modern vehicles and equipment.

2. Oil channels are formed in the first bracket, the second bracket, the third bracket and the valve chamber, so that engine oil can be effectively distributed to flow to different parts, and stable operation of the engine oil is ensured; through the support oil return channel and the valve oil return channel that set up for the machine oil can circulation flow, in time retrieves used machine oil, keeps the good state of machine oil, ensures lubrication system's stability and continuous operation.

Drawings

The present utility model is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.

FIG. 1 is an exploded view of a lubrication system;

FIG. 2 is a schematic illustration of a cover in a lubrication system;

FIG. 3 is a cross-sectional view in the Y-Y direction of FIG. 1;

fig. 4 is an internal structural view of the valve lubrication assembly.

In the figure: 1. a crankshaft transmission mechanism; 2. a first bracket; 3. an oil pump gear; 4. a cover cap; 5. a second bracket; 6. an oil-passing bracket; 7. a valve lubrication assembly; 8. a third bracket; 9. a motor oil collector; 10. an oil pump; 11. an oil pump outlet; 12. an oil inlet duct; 13. an oil separating port; 14. oil column mounting holes; 15. an oil outlet duct; 16. a bracket oil return passage; 17. an oil inlet column; 18. oil-through bolts; 19. an air valve chamber oil passage; 20. a rocker arm oil passage; 21. and a valve return oil passage.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the utility model, i.e., the embodiments described are merely some, but not all, of the embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.

Referring to fig. 1 to 4, in an embodiment of the present utility model, a lubrication system includes a crankcase, a crank mechanism 1, a first bracket 2, a cover 4, a second bracket 5, an oil-passing bracket 6, a valve lubrication assembly 7, and a third bracket 8;

the crank transmission mechanism 1 is arranged in a crank case, the first support 2 and the second support 5 are respectively arranged at two ends of the crank transmission mechanism 1, the two third supports 8 are symmetrically arranged at two sides of the crank transmission mechanism 1, the oil through support 6 is arranged between the crank transmission mechanism 1 and the second support 5, an oil duct and an oil injection hole are arranged in the oil through support 6, the cover 4 is integrated with the engine oil pump 10, the output end of the engine oil pump 10 is provided with the engine oil pump gear 3, the engine oil pump gear 3 is in transmission connection with the crank transmission mechanism 1, and the bottom of the cover 4 is provided with the engine oil collector 9 and the engine oil pump outlet 11.

Specifically, the top of first support 2 is provided with oil inlet duct 12, and the inside oil separating mouth 13 that is equipped with oil inlet duct 12 intercommunication of first support 2, and the inner structure of second support 5 is the same with first support 2, and first support 2 and second support 5 all are equipped with the play oil duct 15 that leads to third support 8, are equipped with oil column mounting hole 14 and support oil return duct 16 on third support 8, and oil separating mouth 13's one end leads to oil column mounting hole 14 through play oil duct 15, and oil separating mouth 13's the other end leads to oil support 6.

Further, the valve lubrication assembly 7 comprises a valve chamber, an oil inlet column 17 is arranged in the valve chamber, one end of the oil inlet column 17 is communicated with an oil passing column mounting hole 14, the oil inlet column 17 is further communicated with a valve chamber oil duct 19, an oil passing bolt 18 is arranged at the top of the oil inlet column 17, an annular groove is formed in the oil passing bolt 18 at the position of the valve chamber oil duct 19 so that oil is smoothly transported in all directions after screwing in, a valve return duct 21 is arranged at the bottom of the valve chamber, and the valve return duct 21 is communicated with a bracket return duct 16.

The utility model adopts pressure lubrication, is provided with an oil pump 10, and the crankshaft transmission mechanism 1 drives the oil pump gear 3 to rotate, thereby providing oil lubrication for a motion friction pair in an engine. The lubricating oil is pumped from an oil collecting tank at the bottom of the crankcase through an oil collector 9 and enters an oil pump 10, a filter screen is arranged at the front end of the oil collector 9 to filter metal scraps, and the oil pump 10 drives an outer rotor to rotate through an inner rotor, so that the volume of a pump cavity is increased to generate vacuum, and the oil is sucked; as the rotor moves, the pump chamber reduces in volume during rotation and oil is forced out.

The engine oil is pressurized and accelerated by the engine oil pump 10, flows into the oil inlet channel 12 through the engine oil pump outlet 11, and flows into the oil passing bracket 6 in the first bracket 2 through the oil distributing port 13. The spray hole of the oil passing bracket 6 is in the same plane with the clearance of the crankshaft, and engine oil is splashed in the crankcase by virtue of the crankshaft, so that the pressure lubrication of the crankshaft is realized. The engine oil is led to the second bracket 5 through the oil passage of the oil passing bracket 6.

The engine oil in the first bracket 2 and the second bracket 5 flows to the oil passing column mounting hole 14 through the oil outlet passage 15, and then flows into the oil passing bolt 18 through the oil inlet column 17. After the engine oil flows into the valve chamber oil duct 19 from the oil flow-through flow, the engine oil is divided into two flows to the rocker shafts at two ends, and the rocker arms and the rocker shafts are used for oil transportation through the rocker arm oil duct 20, so that the function of lubricating the rocker arm moving parts is achieved. The whole machine is horizontally placed, engine oil in the valve chamber gathers below under the action of gravity, and is led to the bracket oil return channel 16 from the valve oil return channel 21, so that a circulating oil way is realized.

The utility model is limited only by the claims and the full scope and equivalents thereof, and furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be interpreted as indicating or implying a relative importance or an implicit indication of the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The foregoing is merely illustrative of the structures of this utility model and various modifications, additions and substitutions for those skilled in the art can be made to the described embodiments without departing from the scope of the utility model or from the scope of the utility model as defined in the accompanying claims.

Claims (7)

1. A lubrication system comprising a crankcase, characterized in that:

the crank case is internally provided with a crank transmission mechanism (1), the crank case is provided with a cover cap (4), an oil pump (10) is integrated on the cover cap (4), an oil pump gear (3) is arranged at the output end of the oil pump (10), and the oil pump gear (3) is in transmission connection with the crank transmission mechanism (1);

the bottom of the cover cap (4) is provided with an oil collector (9) and an oil pump outlet (11).

2. A lubrication system according to claim 1, characterized in that the two ends of the crankcase are provided with a first bracket (2) and a second bracket (5) respectively, the two sides of the crankcase are provided with a third bracket (8), and an oil-passing bracket (6) is arranged between the second bracket (5) and the crankshaft transmission mechanism (1).

3. A lubrication system according to claim 2, characterized in that the first bracket (2) is provided with an oil inlet duct (12), the oil inlet duct (12) is communicated with the oil pump outlet (11), the first bracket (2) is further provided with an oil distributing port (13) communicated with the oil inlet duct (12), and the first bracket (2) and the second bracket (5) are both provided with an oil outlet duct (15) leading to the third bracket (8).

4. A lubrication system according to claim 3, wherein the third bracket (8) is provided with a valve lubrication assembly (7), the third bracket (8) is provided with an oil column mounting hole (14), one end of the oil separating port (13) is led to the oil column mounting hole (14), and the other end of the oil separating port (13) is led to the oil passing bracket (6).

5. A lubrication system according to claim 4, wherein the third bracket (8) is further provided with a bracket return oil duct (16).

6. A lubrication system according to claim 4, wherein the valve lubrication assembly (7) comprises a valve chamber, the valve chamber is provided with an oil inlet column (17), one end of the oil inlet column (17) is communicated with an oil through column mounting hole (14), the oil inlet column (17) is further communicated with a valve chamber oil duct (19), and an oil through bolt (18) is mounted at the top of the oil inlet column (17).

7. A lubrication system according to claim 6, characterized in that the valve chamber bottom is provided with a valve return oil channel (21), which valve return oil channel (21) communicates with the bracket return oil channel (16).