CN216691260U

CN216691260U - Double-end output engine

Info

Publication number: CN216691260U
Application number: CN202220226583.XU
Authority: CN
Inventors: 周国兵; 周安
Original assignee: Chongqing Yuhun Electromechanical Technology Co ltd
Current assignee: Chongqing Yuhun Electromechanical Technology Co ltd
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-06-07
Anticipated expiration: 2032-01-27

Abstract

The utility model discloses a double-end output engine, and relates to the technical field of engine equipment. The oil-gas transmission device comprises a cylinder body and a crankcase, wherein the bottom end of a connecting rod in the cylinder body is rotationally connected with a crankshaft in the crankcase, two ends of the crankshaft extend out of the crankcase, an oil transmission channel is arranged in the crankshaft, one end of the oil transmission channel is communicated with an engine main oil channel, and the other end of the oil transmission channel is communicated with the bottom end of the connecting rod and a rotational connecting part of the crankshaft; the problems that the output power point of the existing low-power engine is few, the output power density is low, and the lubricating effect is poor, and the service life is short are solved.

Description

Double-end output engine

Technical Field

The utility model relates to the technical field of engine equipment, in particular to a double-end output engine.

Background

The internal combustion engine is a well-formed and long-history industrial product, changes the lives of people from the birth date, influences the progress of human science and technology, and is widely applied along with the development of human society and the progress of human civilization.

At present, with the continuous development of economic society, the progress of technology and the specialization, subdivision and refinement of various application occasions, the requirements of the internal combustion engine are updated and changed. At present, according to the market demands, new requirements are put forward for low-power internal combustion engines, and long service life, small volume, light weight and high power density are required.

At present, small-power internal combustion engines on the market, such as small-sized general-purpose steam engine engines, are difficult to achieve the balance among the service life, the volume, the weight and the power density of the internal combustion engines, so how to simultaneously improve the service life and the power density of the internal combustion engines is a technical problem to be solved in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a double-end output engine to solve the problems of low output power density and low service life caused by poor lubricating effect of the existing low-power engine due to few output power points.

In order to solve the problems, the utility model adopts the following technical means:

the utility model provides a bi-polar output engine, includes cylinder body and crankcase, the connecting rod bottom in the cylinder body with the bent axle in the crankcase rotates and is connected, the both ends of bent axle all stretch out the crankcase, be provided with oil transmission duct in the bent axle, oil transmission duct's one end and engine main oil duct intercommunication, the other end with the connecting rod bottom with the rotation connecting portion intercommunication of bent axle.

Furthermore, two ends of the crankshaft are respectively and rotatably connected with the side wall of the crankcase through main bearings, the crankshaft is connected with the bottom end of the connecting rod through a needle bearing, and an oil outlet communicated with the oil conveying channel is formed in one surface, facing the inner ring of the needle bearing, of the crankshaft.

Furthermore, a first crankcase cover and a second crankcase cover are mounted on two sides of the crankcase, the first crankcase cover and the second crankcase cover are both fixed to the crankcase, two extending ends of the crankshaft respectively penetrate through the first crankcase cover and the second crankcase cover, and two ends of the crankshaft are respectively rotatably connected with the first crankcase cover and the second crankcase cover through output bearings.

Furthermore, a first oil groove is formed in the part, attached to the outer wall of one side of the crankcase, of the outer wall of the crankcase and the first crankcase cover, a second oil groove is formed in the part, attached to the outer wall of the crankcase, of the first crankcase cover, the end face of the first oil groove is buckled with the end face of the second oil groove to form a case body combining oil passage serving as a main oil passage of the engine, the case body combining oil passage is communicated with the oil conveying passage, and the case body combining oil passage is communicated with an engine oil sedimentation tank arranged below the crankcase.

Furthermore, an oil pump is arranged between the crankcase and the first crankcase cover, an oil outlet end of the oil pump is communicated with the box-assembling oil passage, an oil inlet end of the oil pump faces the oil sedimentation tank, and an oil outlet end of the oil pump faces away from the oil sedimentation tank.

Furthermore, the crankcase is also provided with an oil delivery hole, one end of the oil delivery hole is communicated with the box body close oil duct, and the other end of the oil delivery hole is connected with the cylinder head cover oil duct through the cylinder body oil delivery duct.

Furthermore, an oil passing cavity is formed in the first crankcase cover, one end, provided with the oil conveying passage, of the crankshaft penetrates through the oil passing cavity, an oil passing hole is formed in the crankshaft and communicates the oil conveying passage with the oil passing cavity, and the oil passing cavity is communicated with the main oil passage of the engine.

Furthermore, a first communicating channel is arranged in the first crankcase cover, a second communicating channel is arranged on one side, facing the crankcase, of the second crankcase cover, the first communicating channel communicates the oil passing cavity with the rotating part of the output bearing, and the second communicating channel communicates with a box body assembling oil channel.

Furthermore, a filter screen is covered at the oil outlet end of the engine oil sedimentation tank, the oil outlet end of the engine oil pump is communicated with the oil inlet end of the engine oil fine filter, and the oil outlet end of the engine oil fine filter is communicated with the box body box-assembling oil duct.

Furthermore, the two ends of the crankshaft extending out of the crankcase are in transmission connection with a generator or an impeller cooling system.

In the using process, the utility model has the following beneficial effects:

compared with the existing low-power internal combustion engine, the engine has the advantages that the left end and the right end of the crankshaft extend out of the crank case, so that more output ends can be connected with the engine. And then let the use of engine nimble more changeable, single engine can possess two outputs to promote the output ability. In addition, by utilizing the oil conveying channel arranged on the crankshaft, in the running process of the crankshaft, the connecting part of the crankshaft and the connecting rod can be directly lubricated by engine oil, the abrasion between the connecting rod and the crankshaft in the running process is greatly reduced, the whole engine is lubricated together with the mode that the splashing pressure of the cylinder body per se inputs the engine oil, the connecting part of the crankshaft and the connecting rod can realize the pressure lubrication of the engine oil, and the service life of the engine is prolonged.

Drawings

Fig. 1 is a first view structural diagram of the present invention.

FIG. 2 is a second perspective structural view of the present invention.

Fig. 3 is a schematic cross-sectional view of a crankcase of the present invention.

Fig. 4 is a schematic view of a first crankcase cover side construction of the utility model.

FIG. 5 is a schematic view of the structure of the direction of oil flow in the crankshaft of the present invention.

FIG. 6 is a schematic view of the flow structure of the oil in the oil sumps according to the present invention.

Fig. 7 is a partially enlarged structural view of a portion a in fig. 5.

Fig. 8 is a partially enlarged structural view at B in fig. 5.

The oil-gas separator comprises a cylinder body 1, a crankcase 2, a connecting rod 3, a crankshaft 4, an oil conveying passage 5, a main bearing 6, a needle bearing 7, an oil outlet 8, a first crankcase cover 9, a second crankcase cover 10, an output bearing 11, a first oil groove 12, a second oil groove 13, a box closing oil passage 14, an engine oil sedimentation tank 15, an engine oil pump 16, an oil conveying hole 17, an oil passing hole 18, an oil passing hole 19, a filter screen 20, a first connecting passage 21 and a second connecting passage 22.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention 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 present invention, 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 obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

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, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

Referring to fig. 1, 2 and 3, a double-end output engine includes a cylinder block 1 and a crankcase 2, a bottom end of a connecting rod 3 in the cylinder block 1 is rotatably connected with a crankshaft 4 in the crankcase 2, two ends of the crankshaft 4 extend out of the crankcase 2, an oil delivery passage 5 is arranged in the crankshaft 4, one end of the oil delivery passage 5 is communicated with an engine main oil passage, and the other end is communicated with a rotary connecting portion of the bottom end of the connecting rod 3 and the crankshaft 4.

Thus, the engine according to the present invention has more outputs than the conventional low-power internal combustion engine, since the left and right ends of the crankshaft 4 protrude from the crankcase 2. And then let the use of engine nimble more changeable, single engine can possess two outputs to promote the output ability. In addition, by utilizing the oil delivery passage 5 arranged on the crankshaft 4, in the running process of the crankshaft 4, the connecting part of the crankshaft 4 and the connecting rod 3 can realize oil pressure lubrication, the abrasion between the connecting rod 3 and the crankshaft 4 in the running process is greatly reduced, the whole engine is lubricated in the running process together with the mode that the splashing pressure of the cylinder body 1 per se is used for delivering the oil, the abrasion between the crankshaft 4 and the bottom of the connecting rod 3 in the running process of the engine is greatly reduced, and the service life of the engine is prolonged.

Furthermore, two ends of the crankshaft 4 are rotatably connected with the side wall of the crankcase 2 through main bearings 6, the crankshaft 4 is connected with the bottom end of the connecting rod 3 through needle roller bearings 7, and an oil outlet 8 communicated with the oil delivery passage 5 is formed in one surface of the crankshaft 4 facing the inner ring of the needle roller bearings 7.

In addition, a first crankcase cover 9 and a second crankcase cover 10 are mounted on two sides of the crankcase 2, the first crankcase cover 9 and the second crankcase cover 10 are both fixed to the crankcase 2, two extending ends of the crankshaft 4 respectively penetrate through the first crankcase cover 9 and the second crankcase cover 10, and two ends of the crankshaft 4 are respectively rotatably connected with the first crankcase cover 9 and the second crankcase cover 10 through output bearings 11.

In this way, on the one hand, the first crankcase cover 9 and the second crankcase cover 10 are used for protecting the crankcase 2, and on the other hand, the first crankcase cover 9 and the second crankcase cover 10 can be used for rotatably supporting two extending ends of the crankshaft 4, namely, the output bearing 11 is used for supporting the crankshaft 4, so that the stability of the crankshaft 4 in the operation process is improved.

Further, as shown in fig. 4 to 8, a first oil groove 12 is disposed on a portion of the outer wall of the crankcase 2, which is attached to the outer wall of the first crankcase cover 9 facing the side of the crankcase 2, a second oil groove 13 is disposed on a portion of the first crankcase cover 9, which is attached to the outer wall of the crankcase 2, the first oil groove 12 and the second oil groove 13 are fastened to form a box assembling oil passage 14 serving as the main oil passage of the engine, the box assembling oil passage 14 is communicated with the oil delivery passage 5, and the box assembling oil passage 14 is communicated with an engine oil sedimentation basin 15 disposed below the crankcase 2.

The direction of the arrow in the figure is a flow path of the oil.

In addition, an oil pump 16 is arranged between the crankcase 2 and the first crankcase cover 9, an oil outlet end of the oil pump 16 is communicated with the box assembling oil passage 14, an oil inlet end of the oil pump 16 faces the oil sedimentation tank 15, and an oil outlet end of the oil pump 16 faces away from the oil sedimentation tank 15.

Furthermore, an oil delivery hole 17 is further formed in the crankcase 2, one end of the oil delivery hole 17 is communicated with the box body assembling oil duct 14, and the other end of the oil delivery hole 17 is connected with the cylinder head cover oil duct through a cylinder body oil delivery duct.

The engine oil flows out from the oil delivery hole 17 to lubricate the moving part of the cylinder head, and the oil outlet of the cylinder head is communicated with the timing tooth chamber to lubricate the timing tooth and the camshaft.

In this way, the oil feed hole 17 is used to feed oil for lubrication to the lever head.

In addition, an oil passing cavity 18 is formed in the first crankcase cover 9, one end, provided with the oil conveying passage 5, of the crankshaft 4 penetrates through the oil passing cavity 18, an oil passing hole 19 is formed in the crankshaft 4, the oil conveying passage 5 is communicated with the oil passing cavity 18 through the oil passing hole 19, and the oil passing cavity 18 is communicated with the main oil passage of the engine at the same time.

Furthermore, a first communicating channel 21 is arranged in the first crankcase cover 9, a second communicating channel 22 is arranged on one side of the second crankcase cover 10 facing the crankcase 2, the first communicating channel 21 communicates the oil passing cavity 18 with the rotating part of the output bearing 11, and the second communicating channel 22 communicates with the box body assembling oil passage 4.

Specifically, the aforementioned second communication passage 22 may be provided on the side of the crankcase 2 where the second crankcase cover 10 is provided, and the aforementioned second communication passage 22 communicates with the rotating portion of the output bearing 11 provided on the second crankcase cover 10.

In this way, the output bearing 11 for reinforcing and supporting and the connecting end of the crankshaft 4 and the connecting rod can be lubricated in one oil passage system in addition to the crankshaft 4 by the arrangement of the box body assembling oil passage 14.

Furthermore, a filter screen is covered at the oil outlet end of the engine oil sedimentation tank, the oil outlet end of the engine oil pump is communicated with the oil inlet end of the engine oil fine filter, and the oil outlet end of the engine oil fine filter is communicated with the box body box-assembling oil passage.

The engine oil after lubricating like this directly after the coarse filtration, under the effect of engine oil pump, directly gets into the engine oil fine filter, because entire system adopts an engine oil lubrication oil duct, the lubricated part of whole engine can both receive the lubrication of the engine oil after being filtered by the engine oil fine filter like this. On one hand, the lubricating effect is better, on the other hand, the abrasion of the engine is further reduced, and the service life is prolonged.

In the present embodiment, the aforementioned engine main oil gallery may be the aforementioned box assembling oil gallery 14, and the aforementioned oil passing gallery 18 may communicate with the second oil gallery 13 provided on the first crankcase cover 9 through a passage provided on the first crankcase cover 9, so that the oil passing gallery 18 communicates with the box assembling oil gallery 14 formed by the first oil gallery 12 and the second oil gallery 13.

And as the application of the engine of the utility model, the two ends of the crankshaft 4 extending out of the crankcase 2 are connected with a generator or an impeller cooling system in a transmission way.

That is, the two ends of the crankshaft 4 extending out of the crankcase 2 are used to drive the generator and/or the wind blowing silencer and other heating parts, so that the single engine can realize multiple functions.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims

1. A double-end output engine comprising a cylinder block (1) and a crankcase (2), characterized in that: the oil-gas separation device is characterized in that the bottom end of a connecting rod (3) in the cylinder body (1) is rotatably connected with a crankshaft (4) in the crankcase (2), two ends of the crankshaft (4) extend out of the crankcase (2), an oil conveying passage (5) is arranged in the crankshaft (4), one end of the oil conveying passage (5) is communicated with an engine main oil passage, and the other end of the oil conveying passage is communicated with the bottom end of the connecting rod (3) and a rotating connecting portion of the crankshaft (4).

2. A double ended output engine according to claim 1, wherein: the oil-conveying mechanism is characterized in that two ends of the crankshaft (4) are respectively connected with the side wall of the crankcase (2) through main bearings (6) in a rotating mode, the crankshaft (4) is connected with the bottom end of the connecting rod (3) through a needle bearing (7), and an oil outlet (8) communicated with the oil conveying channel (5) is formed in one surface, facing the inner ring of the needle bearing (7), of the crankshaft (4).

3. A double ended output engine according to claim 1, wherein: the crankcase comprises a crankcase body (2), a first crankcase cover (9) and a second crankcase cover (10) are mounted on two sides of the crankcase (2), the first crankcase cover (9) and the second crankcase cover (10) are fixed to the crankcase (2), two extending ends of a crankshaft (4) penetrate through the first crankcase cover (9) and the second crankcase cover (10) respectively, and two ends of the crankshaft (4) are rotatably connected with the first crankcase cover (9) and the second crankcase cover (10) through output bearings (11) respectively.

4. A double ended output engine according to claim 3, wherein: the engine oil tank is characterized in that a first oil groove (12) is formed in the part, attached to the outer wall of one side of the crankcase (2), of the outer wall of the crankcase (2) and the first crankcase cover (9), a second oil groove (13) is formed in the part, attached to the outer wall of the crankcase (2), of the first crankcase cover (9), the first oil groove (12) and the second oil groove (13) are buckled to form a tank body assembling oil passage (14) serving as a main oil passage of the engine, the tank body assembling oil passage (14) is communicated with the oil conveying passage (5), and the tank body assembling oil passage (14) is communicated with an engine oil sedimentation tank (15) arranged below the crankcase (2).

5. A double ended output engine according to claim 4, wherein: an oil pump (16) is arranged between the crankcase (2) and the first crankcase cover (9), an oil outlet end of the oil pump (16) is communicated with the box body assembling oil passage (14), an oil inlet end of the oil pump (16) faces the oil sedimentation tank (15), and an oil outlet end of the oil pump (16) faces away from the oil sedimentation tank (15).

6. A double ended output engine according to claim 4, wherein: an oil conveying hole (17) is further formed in the crankcase (2), one end of the oil conveying hole (17) is communicated with the box body assembling oil duct (14), and the other end of the oil conveying hole is connected with the cylinder head cover oil duct through the cylinder body oil conveying duct.

7. A double ended output engine according to claim 3, wherein: an oil passing cavity (18) is formed in the first crankcase cover (9), one end, provided with the oil conveying channel (5), of the crankshaft (4) penetrates through the oil passing cavity (18), an oil passing hole (19) is formed in the crankshaft (4), the oil passing hole (19) is used for communicating the oil conveying channel (5) with the oil passing cavity (18), and the oil passing cavity (18) is communicated with a main oil channel of the engine.

8. A double ended output engine according to claim 7, wherein: a first communicating channel (21) is arranged in the first crankcase cover (9), a second communicating channel (22) is arranged on one side, facing the crankcase (2), of the second crankcase cover (10), the first communicating channel (21) is used for communicating the oil passing cavity (18) with the rotating part of the output bearing (11), and the second communicating channel (22) is communicated with a box body closing oil channel (14).

9. A double ended output engine according to claim 5, wherein: the oil outlet end of the engine oil sedimentation tank (15) is covered with a filter screen (20), the oil outlet end of the engine oil pump (16) is communicated with the oil inlet end of an engine oil fine filter, and the oil outlet end of the engine oil fine filter is communicated with the box-combining oil duct (14).

10. A double ended output engine according to claim 1, wherein: and the two ends of the crankshaft (4) extending out of the crankcase (2) are connected with a generator or an impeller cooling system in a transmission way.