A front-end gear train and water pump system for a corn harvester engine

Abstract

The invention discloses a front-end gear train and water pump system of a corn harvester engine, including an air compressor pulley, a generator pulley, a water pump pulley, a crankshaft pulley, a tensioner, a small fan for blowing impurities, a first belt, a second belt, a hydraulic fan pulley of a whole vehicle, and a pulley of a traveling mechanism of a whole vehicle. The crankshaft pulley, the tensioner and the water pump pulley are connected through the first belt to form a first gear train; the water pump pulley, the air compressor pulley and the generator pulley are connected through the second belt to form a second gear train; the small fan for blowing impurities is fixed on the outer end surface of the water pump pulley, and rotates coaxially with the water pump pulley; the hydraulic fan pulley of the whole vehicle is connected to the water pump pulley through a third belt, and the pulley of the traveling mechanism of the whole vehicle is connected to the crankshaft pulley through a fourth belt. The invention has the advantages of compact structure, safety and reliability, etc.

Description

Technical Field

[0001] The invention relates to the technical field of engine gear train arrangement, in particular to a front end gear train of a corn harvester engine. Background Art

[0002] With the improvement of domestic productivity and the modernization of agriculture, agricultural machinery has developed rapidly, becoming more and more advanced, with more and more integrated functions and more and more complex structures. In addition to increasing the row spacing and feed volume to improve harvesting efficiency, harvesting machinery also requires higher and higher travel speeds. The front-end output power of the engine of the corn harvester requires the ability to drive the entire vehicle, the hydraulic fan of the entire vehicle, etc. In response to the increasing speed of the entire vehicle, it is proposed to arrange an air compressor to brake, which increases the difficulty of arranging the front-end wheel system of the engine. In addition, when the corn harvester is harvesting corn or crushing corn stalks for backfilling, some debris and corn leaves fall onto the engine, which are burned after being baked by the high temperature of the engine, posing a major safety hazard.

[0003] The main features of the gear train layout of existing corn harvesters are: first, the air compressor is not arranged in the front gear train; second, the power output of the front travel mechanism is often arranged on the outside of the crankshaft and water pump gear train, which puts a lot of force on the small end of the engine crankshaft, causing faults such as the small end of the crankshaft to break.

[0004] The disclosure of the above background technology content is only used to assist in understanding the concept and technical solution of the present invention. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of the present application. Summary of the invention

[0005] The invention aims to provide a front-end gear train of a corn harvester engine which is compact in structure and safe and reliable.

[0006] To this end, the present invention proposes a front end gear train of a corn harvester engine.

[0007] Preferably, the present invention may also have the following technical features:

[0008] A front-end gear train of a corn harvester engine comprises an air compressor pulley, a generator pulley, a water pump pulley, a crankshaft pulley, a tensioner, a small blowing fan, a first belt, a second belt, a hydraulic fan pulley of a whole vehicle, and a travel mechanism pulley of the whole vehicle. The crankshaft pulley, the tensioner and the water pump pulley are connected via the first belt to form a first gear train; the water pump pulley, the air compressor pulley and the generator pulley are connected via the second belt to form a second gear train; the small blowing fan is fixed to the outer end surface of the water pump pulley and rotates coaxially with the water pump pulley; the hydraulic fan pulley of the whole vehicle is connected to the water pump pulley via a third belt, and the travel mechanism pulley of the whole vehicle is connected to the crankshaft pulley via a fourth belt.

[0009] Furthermore, the water pump pulley has three layers of belt grooves, namely, an outer layer, a middle layer and an inner layer, and the inner layer is close to the water pump body.

[0010] Furthermore, the first belt is connected to the outer belt groove of the water pump pulley; the second belt is connected to the inner belt groove of the water pump pulley; and the third belt is connected to the middle belt groove of the water pump pulley.

[0011] Furthermore, the crankshaft pulley has belt grooves on both sides of the outer layer and the inner layer.

[0012] Furthermore, the first belt is connected to the outer belt groove of the crankshaft pulley; and the fourth belt is connected to the inner belt groove of the crankshaft pulley.

[0013] Furthermore, the generator is fixed on the engine via a generator bracket, and the generator bracket is provided with an elongated hole inclined upward and connected to the generator.

[0014] Furthermore, the generator pulley and the air compressor pulley are fixed to the upper right of the water pump pulley, and the installation height of the air compressor pulley is between the water pump pulley and the generator pulley; a crankshaft pulley and a tensioner are provided below the water pump pulley, and the installation height of the tensioner is between the water pump pulley and the crankshaft pulley.

[0015] Furthermore, the diameter of the small blowing fan is 1.75 to 2.7 times the diameter of the water pump pulley.

[0016] A water pump system of a front-end gear train of a corn harvester engine comprises a water pump and a small blowing fan. The small blowing fan rotates coaxially with the water pump.

[0017] Furthermore, a connection hole for assembling the small blowing fan is provided on the outer end surface of the water pump pulley; the small blowing fan is threadedly connected to the outer end surface of the water pump pulley; and the diameter of the small blowing fan is 1.75 to 2.7 times the diameter of the water pump pulley.

[0018] Compared with the prior art, the beneficial effects of the present invention include: the generator can play the role of a tensioning wheel through an adjustable height assembly method, thereby reducing the layout of parts; all the power take-off wheel grooves are on the inner side of the crankshaft and water pump pulley system, so that the cantilever of the wheel groove with large output power is shortened, reducing the bending moment of the vehicle load on the engine crankshaft, thereby reducing faults such as crankshaft breakage and improving the reliability of the crankshaft; the small fan for blowing debris is installed on the outer end face of the water pump pulley in a suction manner, and the wind is blown from the fan end to the engine body, which can blow away the debris that falls on the surface of the engine, making it difficult for corn silk, leaves and other debris to accumulate on the surface of the engine, reducing the fire hazard. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the gear train structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the structure of the water pump system of the present invention. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with specific implementations and with reference to the accompanying drawings. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope of the present invention and its application.

[0022] Non-limiting and non-exclusive embodiments will be described with reference to the following figures, wherein like reference numerals refer to like parts unless otherwise specifically stated.

[0023] like Figure 1 The front wheel system of a corn harvester engine shown in the figure includes an air compressor pulley 2, a generator pulley 1, a water pump pulley 5, a crankshaft pulley 4, a tensioning wheel 3, a small fan 8, a first belt 100, a second belt 200, a hydraulic fan pulley 7 of a whole vehicle, and a pulley 6 of a whole vehicle travel mechanism. The crankshaft pulley 4, the tensioning wheel 3 and the water pump pulley 5 are connected through the first belt 100 to form a first wheel system; the water pump pulley 5, the air compressor pulley 2 and the generator pulley 1 are connected through the second belt 200 to form a second wheel system. The small fan 8 is fixed on the outer end surface of the water pump pulley 5, and rotates coaxially with the water pump pulley 5. The hydraulic fan pulley 7 of the whole vehicle is connected to the water pump pulley 5 through the third belt 300, and the pulley 6 of the whole vehicle travel mechanism is connected to the crankshaft pulley 4 through the fourth belt 400. The first belt 100, the second belt 200, the third belt 300 and the fourth belt 400 are all V-belts.

[0024] The water pump pulley 5 has three belt grooves, namely, an outer layer, a middle layer, and an inner layer, and the inner layer is close to the water pump body. When connecting the belts, the first belt 100 of the first wheel system is connected to the outer belt groove of the water pump pulley 5; the second belt 200 of the second wheel system is connected to the inner belt groove of the water pump pulley 5; and the third belt 300 is connected to the middle belt groove of the water pump pulley 5. The belt groove diameter of the water pump pulley 5 is a structure with a large diameter in the middle and small ends. The large diameter belt groove in the middle is connected to the third belt 300, the small diameter belt groove close to the water pump body is connected to the second belt 200, and the small diameter belt groove far from the water pump body is connected to the first belt 100.

[0025] The crankshaft pulley 4 has belt grooves on both sides of the outer layer and the inner layer. The first belt 100 of the first wheel system is connected to the outer layer belt groove of the crankshaft pulley 4; the fourth belt 400 is connected to the inner layer belt groove of the crankshaft pulley 4.

[0026] The generator bracket 13 is fixed to the top surface of the engine 500 by bolts, and the generator 12 is fixed to the engine 500 through the generator bracket 13. The generator bracket 13 is provided with an elongated hole 11 which is inclined upward and connected to the generator 12. In this way, the tension of the second belt 200 can be adjusted by adjusting the installation position of the generator 12 in the elongated hole 11. The generator has the function of a tensioning mechanism, which reduces the assembly of the tensioning wheel.

[0027] The generator pulley 1 and the air compressor pulley 2 are fixed to the upper right of the water pump pulley 5, and the installation height of the air compressor pulley 2 is located between the water pump pulley 5 and the generator pulley 1. A crankshaft pulley 4 is provided below the water pump pulley 5, and a tensioning pulley 3 is provided at the lower right or lower left, and the installation height of the tensioning pulley 3 is located between the water pump pulley 5 and the crankshaft pulley 4. The generator 12 is arranged on the top surface of the engine 500, which is the highest position of this gear system, and provides a large space for realizing the installation method of the generator 12 with adjustable installation height. The installation height of the air compressor is lower than the generator 12, which reduces the vibration generated by the operation of the air compressor and makes the engine 500 more stable as a whole.

[0028] The diameter of the small impurity blowing fan 8 is 1.75 to 2.7 times, preferably 2.2 times, of the diameter of the water pump pulley. The small impurity blowing fan is installed on the outer end surface of the water pump pulley 5 in a suction manner, blowing wind from the fan end to the engine 500 body, which can blow away the impurities dropped on the surface of the engine 500, making it difficult for corn silk, leaves and other impurities to accumulate on the surface of the engine 500, thereby reducing the fire hazard.

[0029] A water pump system of a front wheel system of a corn harvester engine includes a water pump and a small fan 8 for blowing impurities, and the small fan 8 rotates coaxially with the water pump. A connection hole for assembling the small fan 8 is provided on the outer end surface of the pulley 5 of the water pump; the small fan 8 for blowing impurities is threadedly connected to the outer end surface of the pulley 5 of the water pump. In a preferred solution, the diameter of the small fan 8 is 1.75 to 2.7 times, preferably 2.2 times, of the diameter of the pulley of the water pump. The small fan 8 for blowing impurities is installed on the outer end surface of the pulley 5 of the water pump in a suction manner, and the wind is blown from the fan end to the body of the engine 500, so that the impurities falling on the surface of the engine 500 are not easily accumulated on the surface of the engine 500, thereby reducing the fire hazard. In this way, when the pulley 5 of the water pump rotates, the small fan for blowing impurities is driven, and no additional wheel system drive is required.

[0030] Those skilled in the art will appreciate that numerous variations to the above description are possible, and that the examples and figures are intended only to describe one or more specific implementations.

[0031] Although what is considered as exemplary embodiments of the present invention has been described and described, it will be understood by those skilled in the art that various changes and substitutions may be made thereto without departing from the spirit of the present invention. In addition, many modifications may be made to adapt specific situations to the teachings of the present invention without departing from the central concept of the present invention described herein. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but the present invention may also include all embodiments and their equivalents that fall within the scope of the present invention.

Claims

1. A front end gear train of a corn harvester engine, characterized in that: It includes an air compressor pulley, a generator pulley, a water pump pulley, a crankshaft pulley, a tensioner, a small blowing fan, a first belt, a second belt, a hydraulic fan pulley of the whole vehicle, and a walking mechanism pulley of the whole vehicle. The crankshaft pulley, the tensioner and the water pump pulley are connected by the first belt to form a first wheel system; the water pump pulley, the air compressor pulley and the generator pulley are connected by the second belt to form a second wheel system; the small blowing fan is fixed on the outer end surface of the water pump pulley, and rotates coaxially with the water pump pulley; the hydraulic fan pulley of the whole vehicle is connected to the water pump pulley by a third belt, and the walking mechanism pulley of the whole vehicle is connected to the crankshaft pulley by a fourth belt.

2. A front end gear train of a corn harvester engine as claimed in claim 1, characterized in that: The water pump pulley has three layers of belt grooves, namely, an outer layer, a middle layer and an inner layer, wherein the inner layer is close to the water pump body.

3. A front end gear train of a corn harvester engine as claimed in claim 2, characterized in that: The first belt is connected to the outer belt groove of the water pump pulley; the second belt is connected to the inner belt groove of the water pump pulley; and the third belt is connected to the middle belt groove of the water pump pulley.

4. A front end gear train of a corn harvester engine as claimed in claim 1, characterized in that: The crankshaft pulley has belt grooves on both sides of an outer layer and an inner layer.

5. A front end gear train of a corn harvester engine as claimed in claim 4, characterized in that: The first belt is connected to the outer belt groove of the crankshaft pulley; the fourth belt is connected to the inner belt groove of the crankshaft pulley.

6. A front end gear train of a corn harvester engine as claimed in claim 1, characterized in that: The generator is fixed on the engine through a generator bracket, and the generator bracket is provided with an elongated hole which is inclined upward and connected to the generator.

7. The front end gear train of a corn harvester engine as claimed in claim 1, characterized in that: The generator pulley and the air compressor pulley are fixed to the upper right of the water pump pulley, and the installation height of the air compressor pulley is between the water pump pulley and the generator pulley; a crankshaft pulley and a tensioner are provided below the water pump pulley, and the installation height of the tensioner is between the water pump pulley and the crankshaft pulley.

8. The front end gear train of a corn harvester engine as claimed in claim 1, characterized in that: The diameter of the small blowing fan is 1.75 to 2.7 times the diameter of the water pump pulley.

9. A water pump system comprising the front end gear train of a corn harvester engine according to claim 1, comprising a water pump, characterized in that: It also includes a small blowing fan, which rotates coaxially with the water pump.

10. The water pump system of the front end gear train of a corn harvester engine as claimed in claim 9, characterized in that: The outer end surface of the water pump pulley is provided with a connection hole for assembling the small blowing fan; the small blowing fan is threadedly connected to the outer end surface of the water pump pulley; the diameter of the small blowing fan is 1.75 to 2.7 times the diameter of the water pump pulley.

Images