CN217428713U - Combine harvester - Google Patents

Abstract

The utility model discloses hope even remove corn handling device when the discharge corn and also be fragile and hinder hydraulic pressure pipe. To this end, the grain discharge device of the combine harvester of the utility model comprises a vertical conveying part (3), a relay conveying part (4), a horizontal conveying part (6), a hydraulic cylinder (10) for operating the horizontal conveying part (6) in a vertical swing mode, and a supporting frame (12) positioned at the rear side of the vertical conveying part (3), wherein the relay conveying part (4) comprises a first relay part (8) connected with the upper end part of the vertical conveying part (3) and a second relay part (9) connected with the starting end part of the horizontal conveying part (6), the first relay part (8) and the second relay part (9) can relatively rotate, the hydraulic cylinder (10) is connected in a mode of crossing the first relay part (8) and the horizontal conveying part (6), a hydraulic pipe (20) for supplying and discharging hydraulic oil to and from the hydraulic cylinder (10) is supported by the support frame (12) in a state of extending upward along the support frame (12).

Description

Combine harvester

Technical Field

The utility model relates to a combine harvester, this combine harvester has: a grain box for storing grains; and a grain discharging device for discharging the grains stored in the grain box to the outside.

Background

The grain discharging device comprises: a vertical conveying part for conveying the grains upwards; a transverse conveying part for conveying the grains transversely and discharging the grains from the tail end discharging part; a relay conveying unit for connecting the vertical conveying unit and the horizontal conveying unit via a horizontal conveying path; and a hydraulic cylinder for operating the horizontal conveying part by swinging up and down around a horizontal axis. The hydraulic pipe for supplying and discharging the hydraulic oil to and from the hydraulic cylinder is supported in a state of extending upward along a support column provided on the lateral side of the threshing device side of the vertical conveying unit.

According to the above configuration, since the hydraulic pipe extending along the support column is located below the relay conveyance unit, a portion extending beyond the relay conveyance unit to the hydraulic cylinder is sharply bent. As a result, when the grain transporting device changes its posture during the grain discharging operation, the hydraulic pipe is sandwiched by the bracket or the like supporting the bent portion, and the hydraulic pipe may be damaged by applying an excessive force.

SUMMERY OF THE UTILITY MODEL

(problem to be solved by the utility model)

Therefore, it is desirable to prevent the hydraulic pipe from being easily damaged even if the grain transporting device changes its posture when discharging grains.

(means for solving the problems)

The utility model discloses a combine's characterized in that has: a grain box for storing grains; and a grain discharging device that discharges grains stored in the grain box to the outside, the grain discharging device having: a vertical conveying part for conveying the grain discharged from the lower part of the grain box upwards; a relay conveying part, one end part of which is communicated and connected with the upper end part of the longitudinal conveying part and conveys the grains along the horizontal direction; a horizontal conveying part which is communicated and connected with the other end of the relay conveying part, conveys the grains along the horizontal direction and discharges the grains from a discharge part at the tail end; a hydraulic cylinder for swinging the horizontal conveying part up and down around a horizontal axis; and a support frame which is provided in a vertical posture in a state of being positioned on a rear side of the vertical conveying unit and supports the vertical conveying unit, wherein the relay conveying unit includes: a first relay unit connected to an upper end of the vertical conveying unit; and a second relay unit connected to a leading end portion of the lateral transfer unit, the first relay unit and the second relay unit being relatively rotatable around the horizontal axis, the hydraulic cylinder being connected so as to straddle the first relay unit and the lateral transfer unit, and a hydraulic pipe for supplying and discharging hydraulic oil to and from the hydraulic cylinder being supported by the support frame in a state of extending upward along the support frame.

According to the utility model discloses, when flexible operation pneumatic cylinder, second relay portion rotates around horizontal axle center for first relay portion, and horizontal transport portion is around horizontal axle center luffing motion. Since the hydraulic pipe extends along the support frame located on the rear side of the vertical conveying unit, the hydraulic pipe can extend to the hydraulic cylinder so as to draw a smooth curve without being bent. As a result, the hydraulic pressure pipe does not take a sharply bent state.

Therefore, even if the grain transporting device is changed in posture during the grain discharging operation, the hydraulic pipe is not easily hooked on the position holding bracket or the like and damaged.

The utility model discloses in, as preferred, corn eduction gear can wind the vertical drive axle center of indulging the transport portion rotates, hydraulic pressure pipe is with the process than the state extension of the position that the relay transport portion leaned on more.

According to this configuration, the grain discharge device is rotated about the longitudinal driving axis of the longitudinal carrying section, so that the horizontal carrying section can be changed in posture to change the grain discharge position. Since the hydraulic pipe passes through a portion above the relay conveyance unit, the hydraulic pipe rarely undergoes excessive posture change and is less likely to be damaged even if the vertical conveyance unit rotates around the vertical axis.

Preferably, the hydraulic pipe is located at a position closer to the vertical conveying portion than the position closer to the upper side of the relay conveying portion in a state where the vertical conveying portion is overlapped in a plan view.

According to this structure. Since the hydraulic pipe passes above the vertical conveying part, even if the grain discharging device is rotated around the vertical driving axis, the posture change can be further reduced.

In the present invention, it is preferable that the hydraulic pipe is supported by a side portion of the support frame which is located on the opposite side of the side where the hydraulic cylinder is disposed with respect to the vertical conveying portion.

According to this configuration, the hydraulic pipe extends from the side portion on the opposite side of the hydraulic cylinder from the rear side of the vertical conveying unit toward the hydraulic cylinder through a portion above the relay conveying unit, and therefore passes through a position near the vertical axis. As a result, the posture of the hydraulic pipe is less changed, further reducing the possibility of damage.

In the present invention, it is preferable that a first holder for locking and holding the hydraulic pipe is provided above the relay conveyance unit.

According to this configuration, the first holder can guide the hydraulic pipe in a state of being separated upward from the relay conveyance unit.

In the present invention, it is preferable that the first holder has: a locking part for locking and holding the hydraulic pipe in a state of limiting the movement range of the hydraulic pipe; and a support portion that supports the engagement portion in a state where the engagement portion is spaced apart from the relay conveyance portion, wherein a separation distance from an attachment portion attached to the relay conveyance portion to a lower end position of the engagement portion of the support portion is larger than an upper and lower width of the engagement portion.

According to this configuration, since the engagement portion that engages and holds the hydraulic pipe is located at a position away from the relay conveyance unit, the hydraulic pipe passes upward while being away from the relay conveyance unit. As a result, the hydraulic pipe is less likely to contact the relay conveying part when the grain conveying device changes the posture.

In the present invention, it is preferable that the first holder is provided in a state of being located on a front side of the relay conveying unit.

With this configuration, the hydraulic pipe can be held at a position on the front side of the relay conveyance unit, that is, at a position close to the hydraulic cylinder. As a result, even if the grain transporting apparatus is changed in posture, it is possible to easily avoid the occurrence of a sharp bend or the like in the vicinity of the portion where the hydraulic pipe is connected to the hydraulic cylinder.

In the present invention, it is preferable that the second holder for holding the hydraulic pipe is provided at a position higher than the upper end portion of the support frame, and is locked to the rear side of the vertical conveying portion.

According to this configuration, since the hydraulic pipe is held by the second holder at a high position where the hydraulic pipe is not supported by the support frame, it is possible to easily avoid the hydraulic pipe from hanging down by its own weight and coming into contact with the relay conveyance unit.

In the present invention, it is preferable that the second holder is provided in a state of being located more rearward than a rear end of the support frame.

According to this configuration, the hydraulic pipe extends in a curved shape to greatly detour above the relay conveyance unit in a state of being away from the relay conveyance unit above the support frame, and thus, the hydraulic pipe can be easily prevented from contacting the relay conveyance unit or being sharply bent.

Drawings

Fig. 1 is a side view of a grain discharge device.

Fig. 2 is a top view of the grain discharge device.

Description of the reference numerals

1: grain box

2: grain discharging device

3: longitudinal conveying part

4: relay conveyance unit

6: horizontal conveying part

8: first relay unit

9: second relay unit

10: hydraulic cylinder

12: supporting frame

20: hydraulic pipe

24: second holder (Relay holder)

25: first holder (Upper holder)

25 a: card fixing part

25 b: a support portion.

Detailed Description

Next, an embodiment of the combine harvester of the present invention will be described with reference to the drawings. In the following description, the direction of arrow "F" is the front side of the body, the direction of arrow "B" is the rear side of the body, the direction of arrow "R" is the right side, and the direction of arrow "L" is the left side.

Although not shown, the combine harvester has a harvesting part for harvesting standing grain stalks in the front part of the machine body, and a threshing device for threshing the grain stalks harvested by the harvesting part. As shown in fig. 1, the present invention includes: a grain box 1 for storing grains; and a grain discharging device 2 for discharging the grains stored in the grain box 1 to the outside.

The grain discharging device 2 includes: a vertical conveying part 3 for conveying the grain discharged from the lower part of the grain box 1 upwards; a relay conveying part 4, one end part of which is communicated and connected with the upper end part of the vertical conveying part 3 and conveys grains along the horizontal direction; and a horizontal conveying part 6 which is connected with the other end of the relay conveying part 4 in a communicating manner, conveys the grains along the horizontal direction, and discharges the grains from the discharge part 5 at the tail end.

The bottom of the grain tank 1 is provided with a bottom screw 7 for conveying the stored grains to the starting end of the vertical conveying part 3. The vertical conveying unit 3, the horizontal conveying unit 6, and the intermediate conveying unit 4 are each constituted by a spiral conveyor of a known structure. That is, a rotary screw is disposed in a cylindrical conveyance box. The bottom screw 7 and the rotating screw of the grain discharging device 2 are linked by a bevel gear or the like.

As shown in fig. 2, the relay conveyance unit 4 includes: a first relay section 8 connected to the upper end of the vertical conveying section 3; and a second relay unit 9 connected to the leading end of the horizontal conveyance unit 6, the first relay unit 8 and the second relay unit 9 being rotatable relative to each other about a horizontal axis X. The outer peripheries of the first relay segment 8 and the second relay segment 9 are each formed by an elbow bend, and one end of the first relay segment 8 and one end of the second relay segment 9 are connected to each other so as to be rotatable about the horizontal axis X.

The grain discharging device 2 includes: a hydraulic cylinder 10 for operating the horizontal conveying part 6 by swinging up and down around a horizontal axis X; a rotary motor 11 capable of rotating the whole grain discharging device around a longitudinal axis Y of the center of the longitudinal conveying part 3; and a support frame 12 that is disposed in a vertical posture so as to be positioned on the rear side of the vertical conveying unit 3, and supports the vertical conveying unit 3.

The grain discharging device 2 is driven by the rotary motor 11, and the whole can be rotated around the longitudinal axis Y. By rotating the grain discharging device 2 about the longitudinal axis Y, the horizontal carrying section 6 can switch its posture between a storage position retracted to the inside of the machine body and an extended position extended to the outside of the machine body.

After power from an engine not shown is transmitted to the bottom auger 7, the power is transmitted to the grain discharging device 2. The grain discharging device 2 is rotationally driven by power transmission, and performs a grain discharging operation. The grain discharging device 2 can convey grains and discharge the grains from a discharging part 5 formed at the end part of the transverse conveying part 6.

The horizontal conveyance unit 6 can be swung up and down around the horizontal axis X by driving the hydraulic cylinder 10. The support bracket 13 is provided in a state of being coupled and fixed to the end portion of the first relay unit 8 on the side of the lateral transfer unit 6. One end of the hydraulic cylinder 10 is connected to the support bracket 13 so as to be relatively rotatable about a horizontal axis.

The other end of the hydraulic cylinder 10 is linked to a lateral link 14 that can swing integrally with the lateral conveying unit 6. The lateral link 14 is constituted by a round bar-shaped member extending in the horizontal direction. One end of the lateral link 14 is rotatably coupled to a bracket 15 coupled to the lateral side of the lateral conveying unit 6.

A lift arm 16 is supported on a side portion of the first relay unit 8 opposite to the lateral conveying unit 6 so as to be swingable around a horizontal axis X. The other end of the lateral link 14 is rotatably coupled to a free end of the lift arm 16. By the telescopic operation of the hydraulic cylinder 10, the lateral transfer unit 6 can be swung about the horizontal axis X by the lateral link 14.

The support frame 12 is positioned behind the vertical conveying unit 3, and the lower end portion thereof is connected and fixed to the body frame 17. The support frame 12 extends upward along the vertical conveying unit 3. The holding members 18 and 19 that rotatably hold the vertical conveying unit 3 in a state of surrounding the vertical conveying unit 3 from the outside are provided at positions separated in the vertical direction. The upper and lower holding members 18 and 19 are connected and supported by the support frame 12.

A hydraulic pipe 20 that supplies and discharges hydraulic oil to and from the hydraulic cylinder 10 is supported by the support frame 12 in a state of extending upward along the support frame 12. The hydraulic pipe 20 is supported by a side portion of the support frame 12 that is located on the opposite side (right side) of the side portion of the vertical conveying unit 3 to the side on which the hydraulic cylinder 10 is arranged, in a state of extending upward from the lower portion of the support frame 12.

The support frame 12 is provided with a plurality of (specifically, 4) intermediate holders 21 to 24 for holding the hydraulic pipes 20 at appropriate intervals in the up-down direction. Of the 4 intermediate retainers 21 to 24, the lower 2 intermediate retainers 21 and 22 are provided in a state of projecting more rightward than the right side surface of the support frame 12. Among the 4 intermediate holders 21 to 24, 2 intermediate holders 23 and 24 located on the upper side are provided in a state of projecting rearward from the rear side surface of the support frame 12, and the hydraulic pipe 20 is locked and held on the rear side of the vertical conveying section 3. The intermediate holder 24 positioned uppermost among the 4 intermediate holders 21 to 24 is provided in a state of being positioned higher than the upper end portion of the support frame 12. Therefore, the intermediate holder 24 located on the uppermost side corresponds to the second holder.

The hydraulic pipe 20 extends upward along the support frame 12, and then extends so as to pass through a portion above the relay conveyance unit 4 while floating upward from the relay conveyance unit 4. The hydraulic pipe 20 passes through a portion higher than the relay conveying unit 4 in a state of overlapping with the vertical conveying unit 3 in a plan view.

The upper holder 25 is a first holder for locking and holding the hydraulic pipe 20 above the relay conveyance unit 4. The upper holder 25 has: a locking part 25a for locking and holding the hydraulic pipe 20 in a state of limiting the moving range of the hydraulic pipe 20; and a support portion 25b that supports the locking portion 25a in a state where the locking portion 25a is separated from the relay conveyance unit 4. The upper holder 25 is made of a metal material having a circular rod shape as a whole, and a lower end portion thereof is connected and fixed to the relay carrier 4 and linearly extends upward. The upper portion is formed by bending so as to be able to lock the holding hydraulic pipe 20. The portion extending linearly corresponds to the support portion 25b, and the portion formed by bending corresponds to the locking portion 25 a.

The distance from the mounting portion of the support portion 25b to the lower end position of the locking portion 25a is formed to be greater than the vertical width of the locking portion, and the locking portion 25a is provided in a state of being located at a portion largely separated upward from the relay conveying unit 4. The upper holder 25 is provided in a state of being positioned on the front side of the relay conveyance unit 4.

The hydraulic pipe 20 is intended to be in a straight state in a free state, and therefore, a portion extending along the support frame 12 extends substantially linearly. When passing above the relay transport unit 4, the retainer 24 and the upper retainer 25 positioned uppermost among the 4 retainers 21 to 24 are bent toward the hydraulic cylinder 10, and are thus guided by engagement, and therefore extend in a winding shape above the relay transport unit 4.

When the hydraulic pipe 20 passes above the relay conveyor 4, it passes near the longitudinal axis Y, and therefore, even if the grain discharging device 2 rotates around the longitudinal axis Y, the hydraulic pipe 20 is not applied with an excessive force and is not easily damaged.

(other embodiments)

Other embodiments are listed below.

(1) The hydraulic pipe 20 may be supported by a side portion of the support frame 12 located on the side (left side) where the hydraulic cylinder 10 is arranged with respect to the vertical conveying unit 3, or may be supported by the rear side of the support frame 12.

(2) The hydraulic pipe 20 may pass through a portion above the relay conveyance unit 4 without overlapping the vertical conveyance unit 3 in a plan view.

(3) The hydraulic pipe 20 may extend in a state of passing through the lateral side of the vertical conveying unit 3 but not passing through a portion above the relay conveying unit 4.

(4) As the first holder, the distance from the mounting portion of the support portion 25b to the lower end position of the locking portion 25a may be the same as the vertical width of the locking portion 25a, or the distance may be smaller than the vertical width of the locking portion 25 a.

(5) The second holder 24 may be provided in a state of being positioned further to the front side than the rear end of the support frame 12.

(6) Only one of the first holder (upper holder) 25 and the second holder (intermediate holder) 24 may be provided, or none of them may be provided.

(availability in industry)

The utility model discloses can be applicable to the combine that has the corn case of storage corn and will save the corn eduction gear of the outside of discharging of the corn of corn case.

Claims (15)

1. A combine harvester is characterized in that,

comprising: a grain box for storing grains; and a grain discharging device for discharging the grains stored in the grain box to the outside,

the grain discharging device is provided with: a vertical conveying part for conveying the grain discharged from the lower part of the grain box upwards; a relay conveying part, one end part of which is communicated and connected with the upper end part of the longitudinal conveying part and conveys the grains along the horizontal direction; a horizontal conveying part which is communicated and connected with the other end of the relay conveying part, conveys the grains along the horizontal direction and discharges the grains from a tail end discharge part; a hydraulic cylinder for swinging the horizontal conveying part up and down around a horizontal axis; and a support frame disposed in a vertical posture in a state of being positioned on a rear side of the vertical conveying unit, for supporting the vertical conveying unit,

the relay conveyance unit includes: a first relay unit connected to an upper end of the vertical conveying unit; and a second relay unit connected to a starting end of the horizontal conveyance unit,

the first relay and the second relay being relatively rotatable about the horizontal axis,

the hydraulic cylinder is coupled so as to straddle the first relay unit and the cross conveyor unit,

a hydraulic pipe that supplies and discharges hydraulic oil to and from the hydraulic cylinder is supported by the support frame in a state of extending upward along the support frame.

2. A combine harvester according to claim 1,

the grain discharging device can rotate around the longitudinal driving axle center of the longitudinal conveying part,

the hydraulic pipe extends through a portion above the relay conveyance unit.

3. A combine harvester according to claim 2,

the hydraulic pipe passes through a portion above the relay conveying unit in a state of overlapping with the vertical conveying unit in a plan view.

4. A combine harvester according to any one of claims 1-3,

the hydraulic pipe is supported by a side portion of the support frame that is located on the opposite side of the side on which the hydraulic cylinder is arranged with respect to the vertical conveying portion.

5. A combine harvester according to any one of claims 1-3,

a first holder configured to lock and hold the hydraulic pipe is provided above the relay conveyance unit.

6. A combine harvester according to claim 4,

the relay conveyance unit includes a first holder for locking and holding the hydraulic pipe above the relay conveyance unit.

7. A combine harvester according to claim 5,

the first holder has: a locking part for locking and holding the hydraulic pipe in a state of limiting the movement range of the hydraulic pipe; and a support portion for supporting the engagement portion in a state where the engagement portion is separated from the relay conveyance portion,

the support portion is separated from the mounting portion mounted on the relay conveying portion to a lower end position of the locking portion by a distance greater than a vertical width of the locking portion.

8. A combine harvester according to claim 6,

the first holder has: a locking part for locking and holding the hydraulic pipe in a state of limiting the movement range of the hydraulic pipe; and a support portion for supporting the engagement portion in a state where the engagement portion is separated from the relay conveyance portion,

the support portion is separated from an attachment portion attached to the relay conveyance portion to a lower end position of the engagement portion by a distance greater than a vertical width of the engagement portion.

9. A combine harvester according to claim 5,

the first holder is provided in a state of being positioned on the front side of the relay conveyance unit.

10. A combine harvester according to any one of claims 6 to 8,

the first holder is provided in a state of being positioned on the front side of the relay conveyance unit.

11. A combine harvester according to any one of claims 1, 2, 3, 6, 7, 8, 9,

the second holder that holds the hydraulic pipe is provided at a position higher than the upper end of the support frame on the rear side of the vertical conveying unit.

12. A combine harvester according to claim 4,

the second holder that holds the hydraulic pipe is provided at a position higher than the upper end of the support frame on the rear side of the vertical conveying unit.

13. A combine harvester according to claim 5,

the second holder that holds the hydraulic pipe is provided at a position higher than the upper end of the support frame on the rear side of the vertical conveying unit.

14. A combine harvester according to claim 11,

the second holder is provided in a state of being located more rearward than a rear end of the support frame.

15. A combine harvester according to claim 12 or 13,

the second holder is provided in a state of being located more to the rear side than the rear end of the support frame.

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