CN1293290C

CN1293290C - Harvester

Info

Publication number: CN1293290C
Application number: CNB031603750A
Authority: CN
Inventors: 平井良介; 松林智也; 高原一浩; 土井久
Original assignee: Kubota Corp
Current assignee: Kubota Corp
Priority date: 2002-12-26
Filing date: 2003-09-29
Publication date: 2007-01-03
Anticipated expiration: 2023-09-29
Also published as: KR20040057980A; CN1936294B; CN1936294A; KR20060084834A; KR100649501B1; KR100674054B1; CN1512044A

Abstract

A harvester has an engine(7) mounted on a traveling body(2). A cooling system of the engine has a fan(16) rotating by interlocking with an output shaft of the engine; a radiator(13) executing heat exchange with the engine; an ambient inlet(12) for taking in air for cooling from the outside of the traveling body; and a vibration-proof net(11) installed to the ambient inlet. The harvester has a position change unit for switching blades of the fan into a cooling position and a dust removal position. In the cooling position, if the fan is rotated in a direction, a cooling wind, turning toward the vibration-proof net from the engine or the radiator or both of the engine and radiator, is produced. In the dust removal position, if the fan is rotated in a direction, a dust removal wind, turning toward the vibration-proof net from the engine or the radiator or both of the engine and radiator, is produced.

Description

Reaper

Technical field

The present invention relates to the reaper of combine-harvester etc.More particularly, the present invention relates in this reaper, the cooling unit that is loaded in the motor of its body that travels has and the output shaft interlock of motor and the fan that can rotate; And carry out the radiator of heat exchange between the aforementioned motor; Be used for from the outside of the aforementioned body that travels suck the outer gas suction port of tempering air and open be located at aforementioned outside the reaper of Air Filter on the gas suction port.

Background technique

In the engine cooling apparatus of this reaper, when sucking the outer gas of the cooling air of using as engine cooling, the dust of leaf bits etc. is located on the Air Filter of outer gas suction port attached to opening.Like this adhere to dust accumulation after, the mesh that might bring out Air Filter stops up, and hinders the suction of cooling air.So, example as prior art, have and on the transmission system from the engine output shaft to the fan, be provided with the clockwise and anticlockwise switching mechanism, by this clockwise and anticlockwise switching mechanism drive fan of suitably reversing, blowing is attached to the dust of Air Filter, eliminate the device (for example, opening flat 6-47630 communique in fact) of the mesh obstruction of Air Filter with reference to Japan.

; when using above-mentioned prior art, from Air Filter blows to motor or radiator or its both wind (claiming that in this manual this wind is cooling air) and both blow to Air Filter from motor or radiator or its wind (claiming that in this manual this wind is dedusting wind) by the sense of rotation of fan carried out forward and reverse switching producing by being located at clockwise and anticlockwise switching mechanism on the engine driving system of fan.; when such clockwise and anticlockwise switching mechanism is set on transmission system; make the whole maximization of this transmission system or even cooling unit; in addition; this transmission system need be assembled, so the assembling operation variation of cooling unit integral body in the confined space of rotating fulcrum (fans drive fulcrum) from the engine output shaft to the fan.

So, the objective of the invention is to eliminate this shortcoming, seek the raising of assembling operation.

Summary of the invention

In order to achieve the above object, the invention provides a kind of reaper that is mounted with motor on the body that travels, the cooling unit of aforementioned motor has and the output shaft interlock of aforementioned motor and the fan that can rotate; Be used for sucking the outer gas suction port of tempering air from the outside of the aforementioned body that travels; With the Air Filter (11) that is erected on the aforementioned outer gas suction port, wherein, being provided with can be with the posture changing mechanism of the blade of aforementioned fan handover operation between cooling posture and dedusting posture, this posture changing mechanism has driver and rotary component, described rotary component with the transmission of power of this driver to aforementioned blade, in aforementioned cooling posture, by aforementioned fan is rotated to a direction, generation blows to the cooling air of aforementioned motor from aforementioned Air Filter, in aforementioned dedusting posture, by aforementioned fan is rotated to an aforementioned direction, produce the dedusting wind that blows to aforementioned Air Filter from aforementioned motor, be provided with force application mechanism, by to the aforementioned rotary component application of force, it is moved on aforementioned rotation shaft core direction, thereby, make it become aforementioned cooling posture the aforementioned blade application of force.

Constitute according to this feature, when the handover operation that cools off between posture and dedusting posture, alter operation to as if the posture of the blade of fan, be not the sense of rotation (sense of rotation of fans drive fulcrum) of the fan as aforementioned prior art.That is, even in arbitrary posture of cooling off posture and dedusting posture, the sense of rotation of fan is a common direction.

Like this, different because do not need to switch the sense of rotation of fan with aforementioned prior art, in the space that from the engine output shaft to the fan, rotates fulcrum (fans drive fulcrum), omitted the extensive mechanism that is used for the sense of rotation of fan is carried out positive anti-switching.So, can make this transmission system even cooling unit integral body concision and compact more.In addition, at this moment also can seek to improve assembling operation as cooling unit integral body.

If when constituting like this, though the occasion that breaks down in posture changing mechanism since blade by the application of force to cooling posture one side, so can keep the engine cooling function.In addition, this force application mechanism for example can be to constitute the spring of the blade oscillating application of force to the cooling posture.

For the aforementioned concrete formation that changes mechanism, can consider for example following formation.

In one embodiment of the present invention, it is characterized in that: the back side of the wind-receiving face of the aforementioned blade when aforementioned cooling posture becomes the wind-receiving face when aforementioned dustproof posture.

In this embodiment, when switching the posture of blade, because can not make blade be and the posture of sense of rotation quadrature (posture that the rotational resistance of fan is increased), so can prevent to result from the increase of the fan rotational resistance that the posture of blade is switched.So, Yi Bian on one side can keep the posture that the verticity of fan switches blade well.

In other a mode of execution of the present invention, it is characterized in that: the face identical with the wind-receiving face of aforementioned blade when the aforementioned cooling posture is the wind-receiving face when the dustproof posture.

In this embodiment, because make the wind-receiving face when the cooling posture be the wind-receiving face when preventing dust posture, so when dustproof, also can produce powerful wind.So, optimized the anti-dust performance that switches the blade posture.

And then, in an example of aforementioned posture changing mechanism, this posture changing mechanism also has the arm that the fulcrum (20) of the blade that is installed in aforementioned fan is gone up, carried out wobbling action with the mobile interlock of the rotation shaft core direction of aforementioned rotary component, and the aforementioned wobbling action by aforementioned arm, aforementioned blade can be switched to aforementioned cooling posture and dedusting posture.

In this feature constitutes, because carry out the posture switching of blade, so, also can enough little manual operation power carry out the posture switching of blade reliably even the resistance that the posture of blade is switched is big with driver.That is, for example aforementioned drives is the occasion of electric motor, if by switch electric motor is carried out the structure of switching operation, just then only use the posture switching that can carry out blade to the little manual operation power of its switch reliably.

So, can switch the dust removal operation of blade posture like a cork.

In addition, because by the rotary component that rotates with the fan one is moved along the rotation shaft core direction, the vane operation portion of posture changing mechanism make arm swing on the fulcrum that is installed in blade switch the posture of blade, so can constitute as succinct fan adjunct.Therefore, because the part of posture changing mechanism is handled as fan, saved the space, assembling also is easy to carry out.

In addition, on aforementioned fan, form rotary hub portion, the fulcrum of aforementioned blade by flanged axle sleeve Drop-proof the structure that is supported in this rotary hub portion aspect following, also be favourable.

In this feature constitutes, because the fulcrum that makes blade by flanged axle sleeve Drop-proof be supported in the rotary hub portion of fan, reduced to be used to prevent that the face that comes off from pressing so prevent to come off, can the little Horizon of resistance have slided into the rotation of capable fulcrum with the flange of axle sleeve.

So the posture that also can smoothly carry out blade is well switched.

For further feature constitutes and this formation plays the effect and the advantage point of reaper of the present invention, on one side promptly can understand by reading following explanation with reference to accompanying drawing on one side.

Description of drawings

Fig. 1 is the side view of a mode of execution of reaper of the present invention, and expression is as the combine-harvester of an example of reaper.

Fig. 2 is the vertical brokeback view of bonnet.

Fig. 3 is the cross-section plan view of bonnet.

Fig. 4 is the front view of motor.

Fig. 5 is the dorsal view of cutting open of posture changing mechanism.

Fig. 6 is the dorsal view of fan.

Fig. 7 is the vertical brokeback view in part that the posture of expression blade is switched.

Fig. 8 is the partial top view that the posture of expression blade is switched.

Fig. 9 is the exploded perspective view of posture changing mechanism part.

Figure 10 is the partial top view that expression is switched according to the posture of the blade of other mode of execution 1 of the present invention.

Figure 11 is the approximate vertical view of other mode of execution 2 of the present invention.

Figure 12 is the approximate vertical view of other mode of execution 3 of the present invention.

Figure 13 is the approximate vertical view of other mode of execution 4 of the present invention.

Embodiment

Below, on one side with reference to accompanying drawing, one side illustrates a preferred implementation of reaper of the present invention based on the combine-harvester of an example of reaper.

As shown in Figure 1, in this combine-harvester, gather in upright paddy bar and conveyance are attached at the body 2 that travels with crawler travel device 1 freely to reaping part 3 liftings at rear front portion.On this travels body 2, being mounted with shelling and handling the hulling device 4 of the paddy bar come from aforementioned reaping part 3, store this hulling device 4 grain storage tank 5 and take running portion 6.Storage tank 5 be positioned at hulling device 4 about horizontal sidepiece, and take the front portion that running portion 6 is positioned at this storage tank 5.

Take in the running portion 6 aforementioned, running attend a banquet 9 load be supported in the tops of bonnet 8 of mounted engine 7, control tower 10 is configured in attend a banquet 9 front part of this running.

During in the lump with reference to Fig. 2～Fig. 4, gas suction port 12 outside forming on the outside board of the side in the left and right directions of aforementioned bonnet 8, Air Filter 11 is arranged on this suction port 12.Radiator 13 is configured between this outer gas suction port 12 and the aforementioned motor 7, and this radiator 13 is by carrying out the water pump 15 of liquid circulation between motor 7 and radiator 13, is used to cool off the cooling returned from aforementioned motor 7 heat exchange with liquid.In aforementioned motor 7 with on these radiator 13 opposed parts, the fan 16 that engine cooling is used is installed.This fan 16 is driven with water pump 15 simultaneously by the driving belt 14 that the rotation by the output shaft 7a of motor 7 drives.

As Fig. 5, shown in Figure 6, aforementioned fan 16 is by the live axle 17 of the employing hexagonal axis that drives by aforementioned driving belt 14, with the rotary hub portion 18 of this live axle 17 one rotation, be mounted a plurality ofly at circumferencial direction with respect to this rotary hub portion 18, blade that accompanying rotation blows 19 constitutes.

Aforementioned each blade 19 constitutes by blade 19 being installed to the blade body of using in the rotary hub portion 18 21 that is the fulcrum 20 of radial extension setting and is fixed on this fulcrum 20 along the turning radius direction.Blade 19 can be at Fig. 7 (a) by rotating around fulcrum 20, and the cooling posture shown in Fig. 8 (a) (example of the 1st posture) and Fig. 7 (b) switch between the dustproof posture shown in Fig. 8 (b) (example of the 2nd posture).

In the cooling posture, along with fan 16 produces wind (wind that is equivalent to the 1st direction) to the rotation of a direction, wind is in proper order by Air Filter 11, radiator 13 and cooling radiator 13 carries out the cooling of motor 7 thus.

On the other hand, in the dedusting posture,, opposite with the occasion of cooling posture along with the rotation of fan 16 to an aforementioned direction, pass through radiator 13 with wind (wind that is equivalent to the 2nd direction) by contrary direction order, the mode that Air Filter 11 blows down attached to the dusts such as leaf bits of Air Filter 11 produces wind.

In this embodiment, the posture by aforementioned blade 19 is switched, with respect at Fig. 7 (a), and the wind-receiving face 19a during cooling posture shown in Fig. 8 (a), its back side 19b becomes at Fig. 7 (b), the wind-receiving face of the dustproof posture shown in Fig. 8 (b).

And then also in the lump with reference to Fig. 9, the posture changing mechanism of switching posture describes to aforementioned a plurality of blades 19 are added up to.

Move the rotary component 22 that is provided with freely with the rotation of live axle 17 one at aforementioned live axle 17 upper edge shaft core directions.The part of this rotary component 22 is the state that enters the recess 18a of aforementioned rotary hub portion 18.

Can arm 24 be installed one rotatably on the fulcrum 20 of aforementioned blade 19, the engagement portion 23 of pin shape is installed in the front end of this arm 24.The arm operation unit 25 of U word shape is integrally formed on rotary component 22.This operation unit 25 is by moving setting range along aforementioned shaft core direction and engaging swing arm 24 with aforementioned engagement portion 23.By the swing of arm 24, fulcrum 20 swings of blade 19 are so blade 19 switches between cooling posture and dedusting posture.

Displacement fork 26 being arranged to be used to carry out moving in the binding of rotary component 22 interlocks along its aforementioned shaft core direction.As shown in Figure 5, the 26 logical axle core swings of winding with respect to aforementioned live axle 17 quadratures of this displacement fork make aforementioned rotary component 22 move at shaft core direction.Symbol 27 is the electric motors (example of driver) that make these displacement fork 26 swings by small gear 31a and tooth sector 31b.

Aforementioned posture changing mechanism also is provided with the operator 28 that this electric motor 27 is carried out the switch type of positive and negative rotary manipulation, the stop switch 33 that stop switch 32 that the fixedly cooling posture that by tooth sector 31b bulldozing operation electric motor 27 is stopped when aforementioned blade 19 switches to the cooling posture is used and the fixedly dedusting posture that by tooth sector 31b bulldozing operation electric motor 27 is stopped when aforementioned blade 19 switches to the dedusting posture are on the contrary used.Symbol 30 is by displacement fork 26, and the rotary component 22 and then the blade 19 swing application of forces are arrived the spring (example of force application mechanism) that cools off posture.

Aforementioned blade 19 by flanged axle sleeve 29 Drop-proof be supported in the rotary hub portion 18.That is, the axle core of the arm 24 bigger than fulcrum 20 diameters and the flange of flanged axle sleeve 29 be butt sliding freely, prevents from thus to come off with respect to rotary hub portion 18.

In addition, aforementioned blade 19 arrives the cooling posture by the spring 30 swing application of forces of an example of force application mechanism.

Moreover, though omitted diagram, also preferably install with the action of the fault of the aforementioned electric motor 27 of sensor etc. badly, make the MA monitoring agency of device for informing action during detection.

Other mode of execution

More than, a preferred implementation of reaper of the present invention is illustrated, but the invention is not restricted to this mode.For example, also can adopt following mode of execution.

Other mode of execution 1

Wind-receiving face when the back side 19b of the wind-receiving face 19a of the blade 19 when in the above-described embodiment, cooling off posture (Fig. 8 (a)) becomes dedusting posture (Fig. 8 (b)).

Replace this mode, can be as shown in figure 10, the mode of the wind-receiving face 19a when the wind-receiving face 19a of the blade 19 during with cooling posture (Figure 10 (a)) is dedusting posture (Figure 10 (b)) constitutes also can.

Other mode of execution 2

In any of Fig. 7 and mode of execution shown in Figure 8 and mode of execution shown in Figure 10 (other mode of execution 1), become in the cooling posture of the blade 19 of fan 16, by fan 16 is rotated to a direction, generation is passed through radiator 13 from Air Filter 11, fan 16 blows to the cooling air of motor 7, on the other hand, and in the dedusting posture of blade 19, by fan 16 is rotated to an aforementioned direction, produce the formation that blows to the dedusting wind of Air Filter 11 from radiator 13.That is, in the cooling posture, become both formation that cooling air blows to radiator 13 and motor 7.

Replace this mode, in the cooling posture, become the formation that cooling air only blows to any one party in radiator 13 or the motor 7 and also can.

In this formation, only blow to an example of the type of radiator 13 as cooling air, shown in Figure 11 is simple, make motor 7 with respect to fan 16 and radiator 13 skews.In this constitutes, even blade 19 is in the cooling posture shown in the solid line, the cooling air that blows to fan 16 from Air Filter 11 and radiator 13 is also less than motor 7, but by getting back to motor 7 at radiator 13 cooled liquid by water pump 15, carries out the cooling (water-cooled) of motor 7 thus.

In addition, in Figure 11, the blade 19 during the dedusting posture dots.

Other mode of execution 3

On the other hand, in above-mentioned other mode of execution 2 described formations, only blow to an example of the type of motor 7 as cooling air, shown in Figure 12 is simple, in the cooling posture of the blade 19 in this constitutes, the cooling of not shown radiator is diverted to radiator by a part that for example blows to the cooling air of motor 7 by fan 16 from Air Filter 11 by ventilation flue etc. and carries out.

In addition, in Figure 12, the blade 19 during the dedusting posture dots.

Other mode of execution 4

And then, shown in Figure 13 is simple, also can change the position of fan 16 and the position of radiator 13, press fan 16 from Air Filter 11, radiator 13, the arranged in order of motor 7.In this constituted, in the cooling posture, the cooling air that produces from fan 16 not only blew to radiator 13, also blows to the outer wall of motor 7 by the cooling air of radiator 13.On the other hand, in the dedusting posture, the cooling air that produces from fan 16 directly blows on the Air Filter 11.

In addition, in Figure 13, the blade 19 during the dedusting posture dots.

Other mode of execution 5

And then the fan 16 shown in the respective embodiments described above also can be located at loading itself not to be had on the reaper of air cooled engine of radiator.In this occasion,, also can adopt with Figure 12 for example the same configuration of reaper of other mode of execution 3 shown in simple for this fan 16 and Air Filter 11 and motor 7.

Other mode of execution 6

In addition, as posture changing mechanism, replace as shown in Figure 5 carry out the operated mechanism of dynamic power machine of displacement fork 26 of the posture changing of blade 19 with operations such as motors 27, also but operate this displacement with manual force and pitch 26 manually-operable formula mechanism.

Claims

1. reaper that on the body that travels (2), is mounted with motor (7), the cooling unit of aforementioned motor has and output shaft (7a) interlock of aforementioned motor (7) and the fan (16) that can rotate; Be used for sucking the outer gas suction port (12) of tempering air from the outside of the aforementioned body that travels (2); Air Filter (11) with being erected on the aforementioned outer gas suction port (12) is characterized in that:

Being provided with can be with the posture changing mechanism of the blade (19) of aforementioned fan (16) handover operation between cooling posture and dedusting posture,

This posture changing mechanism has driver (27) and rotary component (22), and described rotary component (22) arrives the transmission of power of this driver (27) on the aforementioned blade (19),

In aforementioned cooling posture, by making aforementioned fan (16), produce the cooling air that blows to aforementioned motor (7) from aforementioned Air Filter (11) to direction rotation,

In aforementioned dedusting posture, rotate to an aforementioned direction by making aforementioned fan (16), produce the dedusting wind that blows to aforementioned Air Filter (11) from aforementioned motor (7),

Be provided with force application mechanism (30),, it moved on aforementioned rotation shaft core direction, thereby, make it become aforementioned cooling posture aforementioned blade (19) application of force by to aforementioned rotary component (22) application of force.

2. reaper as claimed in claim 1 is characterized in that: the back side (19b) of the wind-receiving face (19a) of the aforementioned blade (19) when aforementioned cooling posture becomes the wind-receiving face when aforementioned dustproof posture.

3. reaper as claimed in claim 1 is characterized in that: the face identical with the wind-receiving face (19a) of aforementioned blade (19) when the aforementioned cooling posture becomes the wind-receiving face when aforementioned dustproof posture.

4. as each described reaper of claim 1～3, it is characterized in that: aforementioned posture changing mechanism also has the arm (24) that the fulcrum (20) of the blade (19) that is installed in aforementioned fan (16) is gone up, carried out wobbling action with the mobile interlock of the rotation shaft core direction of aforementioned rotary component (22), and the aforementioned wobbling action by aforementioned arm (24), aforementioned blade (19) can be switched to aforementioned cooling posture and dedusting posture.

5. reaper as claimed in claim 4 is characterized in that: go up to form rotary hub portion (18) at aforementioned fan (16), the fulcrum (20) of aforementioned blade (19) by flanged axle sleeve (29) Drop-proof be supported in this rotary hub portion (18).