CN211975164U - Engine assembly for harvesting machine and harvesting machine having the same - Google Patents

Abstract

The utility model belongs to the technical field of harvesting machinery, and specifically proposes an engine assembly for harvesting machinery and a harvesting machinery having the same. Distribute the output power, reduce the load on the flywheel end, and connect the drive shaft and flywheel of the rear pulley through the toothed transmission structure, reduce the weight of the shafting components and the moment of inertia, which can effectively improve the reliability of the engine assembly shafting. The required torque when the engine assembly is started solves the common problem that the engine assembly is difficult to start under load.

Description

Engine assembly for harvesting machine and harvesting machine having the same

technical field

The utility model belongs to the technical field of harvesting machinery, in particular to an engine assembly for harvesting machinery. The utility model also relates to a harvesting machine.

Background technique

This section provides merely background information related to the present disclosure and is not necessarily prior art.

At present, most of the harvesting machinery such as wheat and corn use the power drive form of engine + pulley, which is widely used because of its economical, practical, simple, and high-efficiency advantages. In this structure, the pulley is directly connected to the crankshaft, and the pulley rotates with the crankshaft. There are high requirements for the reliability of the engine shafting. In addition, the excessive moment of inertia at the flywheel end will lead to problems such as difficulty in starting the engine.

Utility model content

The purpose of this utility model is to at least solve the problem of difficulty in starting the engine for harvesting machinery in the prior art, and this purpose is achieved through the following technical solutions:

A first aspect of the present invention proposes an engine assembly for a harvesting machine, the engine assembly comprising:

a body, the body is equipped with a crankshaft;

a front-end pulley, the front-end pulley is connected to the first end of the crankshaft;

a flywheel connected to the second end of the crankshaft;

a flywheel housing, the flywheel housing is connected with the body, a space for accommodating the flywheel is formed between the flywheel housing and the body, and the flywheel housing is provided with a transmission shaft hole;

a toothed transmission structure, the toothed transmission structure comprises a first toothed wheel arranged coaxially with the flywheel and fixedly connected, and a second toothed wheel arranged coaxially with the first toothed wheel and in meshing connection;

a transmission shaft, the transmission shaft and the second toothed wheel are arranged coaxially, the transmission shaft is penetrated through the transmission shaft hole, and the first end of the transmission shaft is fixedly connected with the second toothed wheel ;

The rear end pulley is fixedly connected with the second end of the transmission shaft.

The engine assembly proposed by the utility model distributes the output power by arranging the front-end pulley and the rear-end pulley at the front and rear ends of the crankshaft, so as to reduce the load on the flywheel end, and connect the drive shaft of the rear-end pulley through a toothed transmission structure, thereby reducing the weight of the shaft system components And the moment of inertia, which can effectively improve the reliability of the engine assembly shafting, at the same time, reduce the required torque when the engine assembly is started, and solve the general problem that the engine assembly is difficult to start under load.

In addition, the engine assembly according to the present utility model can also have the following additional technical features:

In some embodiments of the present invention, the front-end pulley includes a first pulley and a second pulley that are integrally formed and coaxially arranged.

In some embodiments of the present invention, the second pulley is provided with a belt groove.

In some embodiments of the present invention, the rear end pulley includes a third pulley, a fourth pulley and a fifth pulley that are integrally formed and coaxially arranged.

In some embodiments of the present invention, the first toothed wheel includes a first toothed wheel body, and a plurality of toothed protrusions are provided at equal intervals along the circumferential direction of the outer wall surface of the first toothed wheel body , the second toothed wheel is provided with a first groove corresponding to the position of the toothed protrusion of the first toothed wheel.

In some embodiments of the present invention, the end faces of the plurality of toothed protrusions away from the flywheel are provided with snapping protrusions, and the second toothed wheel corresponds to the first toothed wheel. A second groove is provided at the position of the clipping protrusion.

In some embodiments of the present invention, the second toothed wheel is provided with a connecting hole, and the transmission shaft passes through the connecting hole.

In some embodiments of the present invention, the engine assembly further includes a linkage bearing disposed between the inner wall of the transmission shaft hole of the flywheel housing and the transmission shaft, the linkage bearing The inner wall of the transmission shaft hole of the flywheel housing is fixedly connected to the linkage bearing casing and the bearing roller assembly arranged between the linkage bearing casing and the transmission shaft.

In some embodiments of the present invention, the bearing roller assembly includes a first roller cage, a ball cage and a second roller cage distributed along the axial direction of the transmission shaft, the bearing The roller assembly also includes a number of rollers distributed in the axial direction of the first and second roller cages and a number of balls distributed in the circumferential direction of the ball cage.

A second aspect of the present utility model proposes a harvesting machine, comprising:

engine fan;

water pump;

Vehicle traveling device;

Vehicle working device;

In the engine assembly for a harvesting machine proposed in the first aspect of the present invention, the first pulley of the front end pulley is used to drive the engine fan and the water pump through a belt, and the second pulley of the front end pulley is used to drive the engine fan and the water pump through a belt. The pulley is used to drive the whole vehicle traveling device through the belt, and the rear end pulley is used to drive the whole vehicle working device.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are only for the purpose of illustrating the preferred embodiments, and are not considered to be a limitation of the present invention. Also, the same components are denoted by the same reference numerals throughout the drawings. In the attached image:

FIG. 1 schematically shows a schematic structural diagram according to an embodiment of the present invention;

FIG. 2 schematically shows a schematic structural diagram of a front end of an engine assembly according to an embodiment of the present invention;

3 schematically shows a cross-sectional view of the rear end of an engine assembly according to an embodiment of the present invention;

FIG. 4 schematically shows the structure diagram of the flywheel and the first toothed wheel of the present invention;

FIG. 5 schematically shows a cross-sectional view of the rear end of the engine assembly in the prior art;

The symbols in the accompanying drawings are indicated as follows:

10: body, 11: crankshaft;

20: front pulley, 21: first pulley, 22: second pulley;

30: flywheel, 31: flywheel connecting plate;

40: flywheel housing, 41: drive shaft hole;

50: toothed transmission mechanism, 51: first toothed wheel, 511: toothed protrusion, 512: snap-on protrusion, 52: second toothed wheel;

60: drive shaft;

70: rear end pulley, 71: third pulley, 72: fourth pulley, 73: fifth pulley;

80: Linkage bearing, 81: Linkage bearing jacket, 821: First roller cage, 822: Ball cage, 823: Second roller cage;

90: Drive shaft bearing

Detailed ways

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be more thoroughly understood, and will fully convey the scope of the present disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a," "an," and "the" can also be intended to include the plural forms unless the context clearly dictates otherwise. The terms "comprising", "comprising", "containing" and "having" are inclusive and thus indicate the presence of stated features, steps, operations, elements and/or components, but do not preclude the presence or addition of one or Various other features, steps, operations, elements, components, and/or combinations thereof. Method steps, procedures, and operations described herein are not to be construed as requiring that they be performed in the particular order described or illustrated, unless an order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

Although the terms, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be replaced by these terms restricted. These terms may only be used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "", "second", and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, an element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of example embodiments.

For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature to another element or feature as shown in the figures, such as "inner", "outer", "inner" ", "outside", "below", "below", "above", "above", etc. This spatially relative term is intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "above the other elements or features" above features". Thus, the example term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in FIGS. 1 to 4 , a first aspect of the present invention proposes an engine assembly for a harvesting machine, the engine assembly comprising:

A body 10, a crankshaft 11 is assembled in the body 10;

front-end pulley 20, the front-end pulley 20 is connected with the first end of the crankshaft 11;

a flywheel 30, the flywheel 30 is connected to the second end of the crankshaft 11;

The flywheel housing 40, the flywheel housing 40 is connected with the body 10, a space for accommodating the flywheel 30 is formed between the flywheel housing 40 and the body 10, and the flywheel housing 40 is provided with a transmission shaft hole 41;

The toothed transmission structure 50 includes a first toothed wheel 51 coaxially arranged and fixedly connected with the flywheel 30 and a second toothed wheel 52 coaxially arranged and meshed with the first toothed wheel 51, The first toothed wheel 51 is generally a rigid material to better transmit the output power of the flywheel 30, and the second toothed wheel 52 can be made of elastic material such as rubber to absorb output fluctuations and reduce assembly difficulty;

The transmission shaft 60, the transmission shaft 60 and the second toothed wheel 52 are coaxially arranged, the transmission shaft 60 passes through the transmission shaft hole 41 and the first end of the transmission shaft 60 is fixedly connected with the second toothed wheel 52. The transmission shaft 60 can pass through The bearing is connected with the transmission shaft hole 41 to support the transmission shaft 60;

The rear end pulley 70 is fixedly connected with the second end of the transmission shaft 60 .

As shown in FIG. 5 , the rear end pulley 70 of the traditional harvesting machinery engine assembly is connected to the flywheel 30 through the transmission shaft 60 and the flywheel connecting plate 31. The flywheel connecting plate 31 has many parts, complex assembly, and large weight and rotational inertia. When the engine starts, a large torque output is required, which is not conducive to the engine starting. The engine assembly proposed by the present invention distributes the output power by arranging the front end pulley 20 and the rear end pulley 70 at the front and rear ends of the crankshaft 11 to reduce the load on the end of the flywheel 30 , and is connected to the transmission shaft 60 of the rear end pulley 70 through the toothed transmission structure 50 and flywheel 30, avoiding the use of connecting discs to reduce the weight and moment of inertia of shafting components, which can effectively improve the reliability of the shafting of the engine assembly, and at the same time, reduce the torque required when the engine assembly is started, and solve the problem of the load on the engine assembly. Start a difficult universal puzzle.

In some embodiments of the present invention, the front-end pulley 20 includes a first pulley 21 and a second pulley 22 that are integrally formed and coaxially arranged. Through the integrated front-end pulley 20, the first pulley 21 drives the engine fan and the water pump, and the second pulley 22 drives the vehicle traveling device. Balance the power output of the front and rear ends of the engine assembly.

In some embodiments of the present invention, the second pulley 22 is provided with a belt groove. The reserved belt groove is used to drive the whole vehicle traveling device through the second pulley 22 .

In some embodiments of the present invention, the rear end pulley 70 includes a third pulley 71 , a fourth pulley 72 and a fifth pulley 73 integrally formed and coaxially arranged. The integrated rear pulley 70 drives a number of complete vehicle work equipment, such as harvesting drums and other machinery.

In some embodiments of the present invention, the first toothed wheel 51 includes a first toothed wheel body, and a plurality of toothed protrusions 511 are provided at equal intervals along the circumferential direction of the outer wall of the first toothed wheel body. The second toothed wheel 52 is provided with a first groove at a position corresponding to the toothed protrusion 511 of the first toothed wheel 51 . Through the meshing tooth structure, the flywheel 30 drives the transmission shaft 60 to rotate and then drives the rear pulley 70 to rotate.

In some embodiments of the present invention, the end faces of the plurality of toothed protrusions 511 away from the flywheel 30 are provided with engaging protrusions 512 , and the second toothed wheel 52 corresponds to the locking protrusions 512 of the first toothed wheel 51 . is provided with a second groove. The reliability of torque output and connection is further improved by providing the snap-fit protrusions 512 to cooperate with the second grooves.

In some embodiments of the present invention, the second toothed wheel 52 is provided with a connecting hole 523 , and the transmission shaft 60 passes through the connecting hole 523 . The transmission shaft 60 can be connected to the second toothed wheel 52 through an interference connection, or the inner wall of the connecting hole 523 is provided with protrusions or grooves, and the transmission shaft is provided with a structure that engages with the protrusions or grooves to connect it.

In some embodiments of the present invention, the engine assembly further includes a linkage bearing 80 disposed between the inner wall of the drive shaft hole 41 of the flywheel housing 40 and the drive shaft 60 , and the linkage bearing 80 includes a drive shaft hole with the flywheel housing 40 . The inner wall of 41 is fixedly connected to the linkage bearing housing 81 and the bearing roller assembly arranged between the linkage bearing housing 81 and the transmission shaft 60 . The transmission shaft 60 is supported by arranging the linkage bearing 80 in cooperation with the flywheel housing 40, and the linkage bearing 80 has a long structural life and is maintenance-free.

In some embodiments of the present invention, the bearing roller assembly includes a first roller cage 821 , a ball cage 822 and a second roller cage 823 distributed along the axial direction of the transmission shaft 60 . The bearing rollers The assembly also includes several rollers distributed in the axial direction of the first roller cage 821 and the second roller cage 823 and several balls distributed in the circumferential direction of the ball cage 822 . By setting the roller bearing to bear the radial load, setting the ball bearing to bear the axial load.

A second aspect of the present utility model proposes a harvesting machine, comprising:

engine fan;

water pump;

Vehicle traveling device;

Vehicle working device;

In the engine assembly for harvesting machinery proposed in the first aspect of the present invention, the first pulley 21 of the front pulley 20 is used to drive the engine fan and the water pump through the belt, and the second pulley 22 of the front end pulley 20 is used to drive the whole vehicle through the belt. The traveling device, the rear pulley 70 is used to drive the whole vehicle working device, such as the drum device for harvesting of the harvesting machine.

The harvesting machine proposed in the second aspect of the present utility model has the same beneficial effects as the engine assembly proposed in the first aspect of the present utility model, which will not be repeated here.

The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field of the present invention can easily think of changes within the technical scope disclosed by the present invention. Or replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (10)

1. An engine assembly for harvesting machinery, wherein the engine assembly comprises: a body, the body is equipped with a crankshaft; a front-end pulley, the front-end pulley is connected to the first end of the crankshaft; a flywheel connected to the second end of the crankshaft; a flywheel housing, the flywheel housing is connected with the body, a space for accommodating the flywheel is formed between the flywheel housing and the body, and the flywheel housing is provided with a transmission shaft hole; a toothed transmission structure, the toothed transmission structure comprises a first toothed wheel arranged coaxially with the flywheel and fixedly connected, and a second toothed wheel arranged coaxially with the first toothed wheel and in meshing connection; a transmission shaft, the transmission shaft and the second toothed wheel are arranged coaxially, the transmission shaft is penetrated through the transmission shaft hole, and the first end of the transmission shaft is fixedly connected with the second toothed wheel ; The rear end pulley is fixedly connected with the second end of the transmission shaft. 2 . The engine assembly of claim 1 , wherein the front end pulley comprises a first pulley and a second pulley that are integrally formed and coaxially arranged. 3 . 3. The engine assembly for a harvesting machine according to claim 2, wherein the second pulley is provided with a belt groove. 4. The engine assembly of claim 1, wherein the rear end pulley comprises a third pulley, a fourth pulley and a fifth pulley that are integrally formed and coaxially arranged. 5. The engine assembly for a harvesting machine according to claim 1, wherein the first toothed wheel comprises a first toothed wheel body, and the first toothed wheel body along the outer wall surface of the first toothed wheel body A plurality of tooth-shaped protrusions are arranged at equal intervals in the circumferential direction, and the second toothed wheel is provided with a first groove at a position corresponding to the toothed protrusions of the first toothed wheel. 6 . The engine assembly for harvesting machinery according to claim 5 , wherein the end faces of the plurality of tooth-shaped protrusions away from the flywheel are all provided with snap-fitting protrusions, and the second tooth-shaped protrusions are provided with snap-fit protrusions. 7 . The wheel is provided with a second groove corresponding to the position of the engaging protrusion of the first toothed wheel. 7 . The engine assembly of claim 5 , wherein the second toothed wheel is provided with a connecting hole, and the transmission shaft passes through the connecting hole. 8 . 8. The engine assembly for harvesting machinery according to any one of claims 1 to 7, wherein the engine assembly further comprises an inner wall of the transmission shaft hole provided in the flywheel housing and the The linkage bearing between the transmission shafts, the linkage bearing includes a linkage bearing outer casing fixedly connected with the inner wall of the transmission shaft hole of the flywheel housing and a bearing arranged between the linkage bearing outer casing and the transmission shaft Roller assembly. 9 . The engine assembly for a harvesting machine according to claim 8 , wherein the bearing roller assembly comprises a first roller cage, a ball cage distributed along the axial direction of the transmission shaft A roller cage and a second roller cage, the bearing roller assembly also includes a number of rollers distributed along the axial direction of the first roller cage and the second roller cage and a ball cage along the Several rolling balls distributed in the circumferential direction. 10. A harvesting machine, characterized in that it comprises: engine fan; water pump; Vehicle traveling device; Vehicle working device; According to the engine assembly for a harvesting machine according to any one of claims 1 to 9, the front end pulley is used to drive the engine fan, the water pump and the vehicle running device through a belt, the rear end The pulley is used to drive the whole vehicle working device.

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