CN217445862U - Combine harvester - Google Patents

Abstract

The utility model relates to a combine harvester. It is desirable to support an air purifying device for purifying air supply to an engine with a simple structure. The combine harvester is provided with: a driving part arranged at the front part of the machine body; an engine disposed below the driver part; a threshing device (9) for threshing the harvested crops; and a grain storage part (10) which is positioned at the rear of the driving part and is arranged in a state of being transversely arranged with the threshing device (9), a supporting part (28) is arranged between the driving part and the grain storage part (10) in a state of extending from the part of the threshing device (9) at the grain storage part side in a cantilever shape, and an air purifying device (27) for purifying air supplied to the engine is supported on the supporting part (28).

Description

Combine harvester

Technical Field

The utility model relates to a combine harvester, this combine harvester possess driving portion in the body front portion, possess the corn storage area at driving portion's rear to possess thresher with corn storage area transverse arrangement's state.

Background

Conventionally, a precleaner serving as an air cleaner for cleaning air supplied to an engine has been provided between a cab and a grain storage unit in a high position above a machine body, and the precleaner is supported by a high-height pillar erected from a machine body frame (see, for example, patent document 1).

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2019-135980

Problem to be solved by utility model

In the above-described conventional structure, the pre-filter can be stably supported by using the support column which is firmly supported by being erected from the body frame. However, the pre-filter needs to be disposed at a high position in order to take in the outside air with as little dust as possible being suspended. As a result, the height of the support column is increased, and the support column is a large-sized member to increase the rigidity, which disadvantageously increases the cost.

SUMMERY OF THE UTILITY MODEL

Therefore, it is desirable to support an air purification device for purifying the supply air to the engine with a simple structure.

Means for solving the problems

The utility model discloses a combine's characteristic structure lies in, possesses: a driving part provided at a front portion of the body; an engine disposed below the driver section; a threshing device which threshes the harvested crops; and a grain storage unit that is located behind the cab unit and is disposed in a state of being arranged in a lateral direction of the threshing device, stores grains obtained by the threshing device, and includes a support member between the cab unit and the grain storage unit in a state of being extended in a cantilever shape from a part of the threshing device on the grain storage unit side, and the support member supports an air cleaning device that purifies air supplied to the engine.

According to the utility model, the supporting part for supporting the air purifying device is arranged in a state of extending and setting in a cantilever shape from the threshing device. The support member may be supported by the threshing device at a height required for supporting the air cleaning device, and does not need to extend vertically long, and can be handled with a small and simple structure.

Therefore, the air cleaning device for cleaning the supply air to the engine can be supported with a simple structure.

In the present invention, it is preferable that the support member includes: a longitudinal frame portion extending in a longitudinal direction at a position apart from the threshing device; and a plurality of horizontal connecting portions which connect the threshing device and the vertical frame portion at a plurality of upper and lower positions, respectively.

According to this structure, the support member connects the vertical frame portion and the plurality of vertical connecting portions spaced apart from each other, and therefore, the frame structure is obtained, and the rigidity is high. As a result, the air cleaning device can be stably supported.

In the present invention, it is preferable that the grain storage portion is configured to be capable of switching the posture between an operation posture in which the grain storage portion is retracted inward of the machine body and a maintenance posture in which the grain storage portion is extended outward of the machine body, and the support member includes a position holding member for holding the grain storage portion in a position when the grain storage portion is in the operation posture.

According to this configuration, the grain storage unit can be held in position by the support member, and the configuration can be simplified as compared with a configuration including a dedicated support mechanism for the position holder.

In the present invention, it is preferable that the grain storage part includes a locking piece for locking the position holding piece, and the locking piece is supported by the front wall of the grain storage part so as to be capable of changing and adjusting the position along the surface of the front wall.

According to this configuration, the position of the locking member is adjusted, so that the locking member is locked in an appropriate state with respect to the position holding member, and the position of the grain storage portion can be held satisfactorily.

In the present invention, it is preferable that the grain storage portion side portion of the threshing device is provided with a secondary processed object returning device for returning a secondary processed object in the threshing processed object to the swing sorting portion, and a height of a lower end portion of the support member is substantially the same as a height of an upper end portion of the secondary processed object returning device.

According to this configuration, since the lower side of the support member is an open space, the support member does not hinder the maintenance operation of the secondary processed object restoration apparatus.

In the present invention, it is preferable that a hydraulic valve unit for supplying and discharging hydraulic oil to and from the hydraulic device be provided below the support member.

According to this configuration, since the hydraulic valve unit is disposed by using the free area on the lower side of the support member, the degree of freedom of the disposition in the case where the other member is provided is increased in the other portion where the hydraulic valve unit is conventionally provided.

In the present invention, it is preferable that the support member supports a precleaner for preliminarily purifying the supply air of the air cleaning device, and the precleaner includes an air cleaner on a lateral side thereof for further purifying the supply air passing through the precleaner.

According to this configuration, the supply air preliminarily purified by the precleaner is smoothly supplied to the air cleaner provided on the lateral side of the precleaner and further purified. As a result, the engine is supplied with air after being purified well.

Drawings

Fig. 1 is an overall side view of a combine harvester.

Fig. 2 is an overall plan view of the combine harvester.

Fig. 3 is a side view showing the structure of the precleaner support portion.

Fig. 4 is a rear view of the power section.

Fig. 5 is a front view of the grain bin.

Fig. 6 is a front view of the position holder providing part.

Fig. 7 is a cross-sectional plan view of the position holder arrangement portion.

Fig. 8 is a rear view showing a support structure of the rear cover.

Fig. 9 is a sectional view taken along line IX-IX of fig. 8.

Description of the reference numerals

7 driving part

9 threshing device

10 grain box (grain storage)

10a front wall

27 prefilter (air purifier)

28 support member

29 vertical frame part

30 transverse connecting part

33 position holding member

35 stop

45 secondary treatment object reduction device

46 air filter

Detailed Description

Embodiments of the present invention will be described based on the drawings. In the following description, the direction of the arrow "F" is referred to as "front side of the body" (see fig. 1 and 2), the direction of the arrow "B" is referred to as "rear side of the body" (see fig. 1 and 2), the direction of the arrow "L" is referred to as "left side of the body" (see fig. 2), and the direction of the arrow "R" is referred to as "right side of the body" (see fig. 2).

[ integral Structure ]

Fig. 1 and 2 show a full-feed combine harvester. The travel machine body of the combine harvester is provided with a machine body frame 1 and a crawler travel device 2. A harvesting part 3 for harvesting the vertical grain stalk of the field is arranged in front of the traveling machine body. The harvesting section 3 includes: a gathering reel 4 for gathering the vertical grain stalks; a harvesting knife 5 for cutting off the vertical grain stalks; and a packing auger 6 which transversely conveys and concentrates the reaped grain stalks along the reaping width direction and sends the reaped grain stalks out backwards.

A steering unit 7 is provided behind the harvesting unit 3. The cab 7 is covered with a cab 8. The device is provided with: a threshing device 9 for threshing the whole straw after harvesting the grain and straw; and a grain box 10 as a grain storage part for storing grains obtained by the threshing process. The grain tank 10 is disposed behind the cab 7. Comprises a grain discharging device 11 for discharging grains stored in the grain box 10 to the outside of the body. The grain discharging device 11 includes a vertical conveying unit 11A and a horizontal conveying unit 11B, and the horizontal conveying unit 11B is configured to be capable of performing a lifting operation and a rotating operation.

The feeder 12 is provided so as to straddle the harvesting unit 3 and the thresher 9 and to feed the whole stalks of the harvested grain stalks toward the thresher 9. The operator's section 7 includes an operator's seat 13 and an operation panel 14 including various operation elements. A power unit 15 is provided below the driver unit 7, and an engine 16 as a power source is provided in the power unit 15.

The grain tank 10 is configured to be capable of switching between a working posture (see solid lines in fig. 2) retracted inward of the machine body and a maintenance posture (see imaginary lines in fig. 2) extended outward of the machine body by being rotated about a vertical axis Y1 on the rear side.

The entire cab 7 including the power unit 15 is supported by the plurality of vertical frames 17, 18, 19, the lateral frames 20, 21, and the like. As shown in fig. 4, 2 vertical frames 17 and 18 supporting the rear portion of the cab 7 are provided at a distance in the left-right direction. The vertical frames 17 and 18 extend long upward with their lower ends fixed to the body frame 1. The 2 vertical frames 17 and 18 are connected to a lateral frame 20 that supports a top plate 22 covering the upper side of the power unit 15.

Right vertical frame 17 extends upward from a connection portion with lateral frame 20, and is connected to lateral frame 21 that supports an upper portion of rear panel 23 of cab 7. As shown in fig. 3, the right vertical frame 17 is formed in a smoothly curved shape in side view. In this configuration, the gap in the front-rear direction between the upper side portion of the front end portion of the grain tank 10 and the right vertical frame 17 is increased, and the posture changing operation of the grain tank 10 is facilitated.

As shown in fig. 4, a rear cover 24 is provided to cover the rear of the engine 16 in a state of extending over the left and right vertical frames 17, 18. The left side of the rear cover 24 is supported by upper and lower supports 25 fixed to the left vertical frame 18. The right side of the rear cover 24 is coupled to a stay 26 fixed to the right vertical frame 17 by a bolt.

As shown in fig. 8 and 9, the upper and lower support members 25 are formed by bending the plate material into a step shape. The upper and lower support members 25 are turned upside down and connected to the rear surface of the left vertical frame 18 so as to sandwich the rear cover 24 from both the upper and lower sides. An inclined guide 25a for guiding the rear cover 24 is formed on the right side of the support 25. Instead of the structure of turning the upper and lower support members 25 upside down, the following structure may be employed: for example, although not shown, the upper and lower support members 25 are formed in a shape that allows insertion from the upper side, and engaging projections that project in the lateral direction are formed at portions of the rear cover 24 corresponding to the upper and lower support members 25, and both the upper and lower sides are inserted downward from the upper side.

A support member 28 is provided between the cab 7 and the grain tank 10 in a state of being cantilevered from a right side portion of the threshing device 9 on the grain tank side, and a precleaner 27 serving as an air cleaning device for cleaning the air supply to the engine 16 is supported by the support member 28.

As shown in fig. 4, 5, and 6, the support member 28 includes: a vertical frame portion 29 extending in the longitudinal direction at a position apart from the threshing device 9; and a plurality of upper and lower horizontal connecting portions 30 for connecting the threshing device 9 to a plurality of upper and lower portions of the vertical frame portion 29. The threshing device is provided with two transverse connecting portions 30, and a flange portion 31 is provided at the left end of each of the two transverse connecting portions 30, and the flange portion 31 is connected to the right side wall 9a, which is the right side portion of the threshing device 9, by a bolt. The right end portions of the two lateral connecting portions 30 are connected to the vertical frame portion 29. A support stay 32 extends laterally from the upper end of the vertical frame portion 29, and the pre-filter 27 is supported by the support stay 32.

The support member 28 includes a position holder 33 that holds the position of the grain tank 10 when the grain tank 10 is in the work posture. As shown in fig. 6 and 7, the front and rear arm portions 34 are formed to extend rightward from the coupling portion with the vertical frame portion 29 of the upper lateral coupling portion 30, and the round bar-shaped position holder 33 is attached in a state where the front and rear arm portions 34 are inserted.

The grain tank 10 is provided with a locking member 35 for locking with the position holding member 33. The engaging piece 35 is supported by the front wall 10a of the grain box 10 so as to be adjustable in position along the surface of the front wall 10 a. As shown in fig. 6 and 7, the locking piece 35 includes: a base portion 37 coupled to the front wall 10a by a plurality of bolts 36; and a hook portion 38 rotatable about the front and rear axial cores with respect to the base portion 37. The hook 38 is biased by a spring 39 in a direction to engage with the position holder 33, and is guided by the inclined surface to automatically switch to a state of engaging with the position holder 33 when the grain tank 10 is switched from the maintenance posture to the operation posture.

As shown in fig. 5, when the posture of the grain tank 10 is switched, the locking state of the hook 38 to the position holder 33 can be released by operating the operating lever 41 connected to the hook 38 via the operating lever 40, and the grain tank can be switched to the maintenance posture. The operating lever 41 is supported by a support plate 50 fixed to the front wall of the grain box 10. The support plate 50 supports not only the operation lever 41 but also a power transmission mechanism 51 for transmitting power to a bottom screw (not shown) provided in the grain tank 10.

The base portion 37 is attached so as to project leftward from the left end of the front wall 10a, and is reinforced by a reinforcing member 42 having an L-shape in a plan view. As shown in fig. 6 and 7, the insertion hole 43 through which the bolt 36 coupled to the front wall 10a of the base portion 37 is inserted is formed as an elongated hole that is long in the left-right direction. Similarly, the insertion hole 44 through which the bolt 36 coupled to the reinforcing member 42 of the base portion 37 is inserted is formed as an elongated hole that is long in the left-right direction.

When the engaging member 35 is attached to the grain tank 10, the base 37 is aligned with an appropriate position and fixed to the front wall 10a by the bolt 36. In this state, the reinforcing member 42 can be fixed to the base portion 37 and the left wall 10b by the bolt 36 in a state where the other side surface of the reinforcing member 42 is in contact with the left wall 10b of the grain tank 10.

The threshing device 9 includes, on the right side portion, which is a grain box side portion: a longitudinal grain feeder 52 for raising and feeding grains (primary processed product) obtained by the threshing process into the grain box 10; and a secondary processed object returning device 45 for returning the secondary processed object in the threshing processed object to a swinging sorting part, not shown, in the threshing device 9. The secondary processed matter reducing device 45 extends in an oblique direction from the lower portion of the rear side of the threshing device 9 toward the front upper side. As shown in fig. 3, the lower end of the support member 28 is set to be substantially the same height as the upper end of the secondary processed object reducing device 45.

An air cleaner 46 for further purifying the supply air having passed through the precleaner 27 is provided on the lateral side of the precleaner 27. As shown in fig. 3 and 4, the air cleaner 46 is provided on the top of the top plate 22 covering the upper side of the power unit 15. The air cleaner 46 has a horizontal cylindrical shape and is provided in a state of extending in the left-right direction. An air supply pipe 47 extending from the lower portion of the precleaner 27 is connected to the left side portion of the air cleaner 46.

The combine body includes a hydraulic valve unit 49 for supplying and discharging hydraulic oil to and from a plurality of hydraulic devices such as a hydraulic cylinder (not shown) for raising and lowering the harvesting unit 3 and a hydraulic cylinder 48 (see fig. 1 and 2) for raising and lowering the lateral conveying unit 11B of the grain discharging device 11. The hydraulic source includes a hydraulic pump (not shown) driven by the engine 16.

As shown in fig. 3 and 4, the hydraulic valve unit 49 is provided below the pre-filter 27, i.e., below the support member 28. The hydraulic valve unit 49 is placed between the cab 7 and the grain tank 10 and is supported by the machine frame 1 at a position closer to the threshing device 9.

The lower side of the support member 28 is open. Therefore, the hydraulic valve unit 49 is disposed at such an open position. According to this configuration, for example, compared to a configuration in which the hydraulic valve unit 49 is provided below the cab 7, the hydraulic piping to be supplied to the hydraulic cylinder 48 or the like that raises and lowers the traverse section 11B of the grain discharging apparatus 11 is shortened, and the hydraulic piping configuration can be simplified.

[ other embodiments ]

(1) In the above embodiment, the support member 28 has a structure including the vertical frame portion 29 and the plurality of horizontal connecting portions 30, but instead of this structure, various structures such as a frame member extending in a curved shape or a frame member extending straight in an oblique direction may be used.

(2) In the above embodiment, the height of the lower end of the support member 28 is substantially the same as the height of the upper end of the secondary processed object reducing device 45, but a structure in which the heights are different may be adopted.

(3) In the above embodiment, the hydraulic valve unit 49 is provided on the lower side of the support member 28, but other hydraulic devices such as an oil filter or other devices such as a battery may be disposed instead of the hydraulic valve unit 49.

(4) In the above embodiment, the position holder 33 is provided in the support member 28, but a structure not provided with such a position holder 33 may be adopted.

(5) In the above embodiment, the precleaner 27 as the air cleaning device is supported by the support member 28, but the air cleaner 46 may be supported by the support member 28.

Industrial applicability

The utility model is not limited to the whole-feeding combine harvester, and can also be applied to the half-feeding combine harvester.

Claims (7)

1. A combine harvester is characterized in that,

the combine harvester is provided with: a driving part arranged at the front part of the machine body; an engine disposed below the cab; a threshing device which threshes the harvested crops; and a grain storage part which is positioned behind the driving part and is arranged in a state of being transversely arranged with the threshing device, stores the grains obtained by the threshing device,

a supporting member provided between the steering unit and the grain storage unit so as to extend in a cantilever manner from a side portion of the grain storage unit of the threshing device,

an air cleaner that cleans air supplied to the engine is supported by the support member.

2. A combine harvester according to claim 1,

the support member includes: a longitudinal frame portion extending in a longitudinal direction at a position apart from the threshing device; and a plurality of horizontal connecting portions which connect the threshing device and the vertical frame portion at a plurality of upper and lower positions, respectively.

3. A combine harvester according to claim 1 or 2,

the grain storage part is configured to be capable of switching between an operation posture of retreating towards the inner side of the machine body and a maintenance posture of extending towards the outer side of the machine body,

the support member is provided with a position holding member that holds the position of the grain storage unit when the grain storage unit is in the working posture.

4. A combine harvester according to claim 3,

a locking member for locking the position holding member is provided in the grain storage part,

the engaging member is supported by the front wall of the grain storage unit so as to be adjustable in position along the surface of the front wall.

5. A combine harvester according to any one of claims 1 to 4,

a secondary processed object reducing device for reducing the secondary processed object in the threshed processed object to a swing sorting part is arranged at the part of the grain storage part side of the threshing device,

the height of the lower end of the support member is substantially the same as the height of the upper end of the secondary processed object reducing apparatus.

6. A combine harvester according to any one of claims 1 to 5,

a hydraulic valve unit for supplying and discharging hydraulic oil to and from the hydraulic equipment is provided on the lower side of the support member.

7. A combine harvester according to any one of claims 1 to 6,

a precleaner for preliminarily cleaning the supply air as the air cleaning device is supported by the support member,

an air cleaner for further purifying the supplied air after passing through the pre-cleaner is provided on a lateral side of the pre-cleaner.

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