CN216960809U

CN216960809U - Turnover mechanism of straw smashing device of harvester and harvester

Info

Publication number: CN216960809U
Application number: CN202220747921.4U
Authority: CN
Inventors: 荣征宇
Original assignee: Suqian Yujie Machinery Manufacturing Co ltd
Current assignee: Suqian Yujie Machinery Manufacturing Co ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-07-15
Anticipated expiration: 2032-04-02

Abstract

The utility model discloses a turnover mechanism of a straw crushing device of a harvester, which comprises a threshing chamber and the straw crushing device arranged at an outlet of the threshing chamber, wherein the top of the straw crushing device is connected with the joint of the outlet of the threshing chamber through a rotating shaft, and the straw crushing device can rotate in the vertical direction by taking the rotating shaft as a shaft; a torsion spring is arranged on the rotating shaft, one end of the torsion spring is fixed at the top of the straw crushing device, and a locking device for fixing the straw crushing device is also arranged between the threshing chamber and the straw crushing device. The utility model also discloses a harvester with the turnover mechanism of the straw smashing device, which can rapidly finish the disassembly and the assembly of the straw smashing device, so that when the harvester needs to transport in a long distance, a truck with a proper wheel track or crawler belt length is selected, and the transportation cost caused by selecting a longer truck is reduced. The straw smashing device can be quickly assembled and disassembled according to the treatment requirement of the harvested straws when the harvester is used for harvesting.

Description

Turnover mechanism of straw smashing device of harvester and harvester

Technical Field

The utility model relates to agricultural machinery, in particular to a component on a harvester.

Background

Agricultural mechanization is increasingly popularized, and harvesting operation is carried out on crops such as wheat and rice through a combine harvester. The threshed straws have two treatment modes, one mode is that a straw crushing device is arranged on a combine harvester and is arranged at a straw outlet of a threshing chamber, the threshed straws in the threshing chamber of the combine harvester are conveyed to the straw crushing device, crushed by the straw crushing device and then thrown into a farmland, and the straws are returned to the field; the other is that the straws output from the threshing chamber of the combine harvester are directly discharged and spread on the ground, and then the straws are collected by other machines at the later stage, so that the complete straws are convenient to recycle.

The existing harvester is generally provided with a straw smashing device, and the straw smashing device is fixed at a straw outlet at the rear side of a threshing chamber through bolts.

When the harvester is used for harvesting across areas, trucks are needed to carry the harvested straws, and when the trucks are rented, the trucks with the most appropriate length are selected, but the straws are often carried by longer trucks due to the straw crushing device protruding out of the rear side of the threshing chamber, and the carrying cost is increased. If the straw crushing device is required to be disassembled in order to save the cost of transportation, whether the straw crushing device is installed or not is determined after the straw crushing device reaches the destination.

After the harvester is conveyed to a destination, whether the straw crushing device needs to be disassembled or not is determined according to different straw treatment requirements of users. If the user requires not to smash the straw, then just need dismantle straw reducing mechanism, straw reducing mechanism includes the shell of device, a plurality of stationary blade and is equipped with the moving knife-axis of a plurality of moving blades, and straw reducing mechanism's weight is very heavy, reaps the scene and carries out the dismouting, alone can not realize accomplishing the work of dismouting. Moreover, after the straw smashing device is disassembled, the straw smashing device is still required to be installed again after the harvesting operation is finished, the disassembling and the assembling mode does not need too many technical requirements, and the disassembling and the assembling process are still difficult only due to the fact that the weight of the straw smashing device is too heavy.

In a utility model patent with the name of turnover mechanism of straw crushing device of harvester and harvester, and the publication number of CN215421692U, which was filed in 2021 by the applicant, the turnover mechanism of straw crushing device of harvester is disclosed, which comprises a threshing chamber and a straw crushing device arranged at the outlet of the threshing chamber, the top of the straw crushing device is connected with the joint of the outlet of the threshing chamber through a rotating shaft, and the straw crushing device can rotate in the vertical direction by taking the rotating shaft as the shaft; a torsion spring is arranged on the rotating shaft, one end of the torsion spring is fixed at the top of the straw smashing device, and a locking device for fixing the straw smashing device is arranged between the threshing chamber and the straw smashing device. The number of the rotating shafts is two, and each rotating shaft is provided with a torsion spring. One end of the rotating shaft is fixedly provided with a locking wheel, the locking wheel and the rotating shaft coaxially rotate, a plurality of notches are formed in the locking wheel along the circumference, and the locking wheel can be limited to rotate by inserting the fixing pin into the notches.

Although the turnover mechanism can realize the function of completing the disassembly and assembly of the straw crushing device by a user, in practical application, the following problems are found:

firstly, the selection or manufacture of the torsion spring, no existing torsion spring which can completely meet the requirement exists in the market at present, and the manufacture of the torsion spring increases the production cost undoubtedly. However, in the technical scheme disclosed in the utility model patent, the manual lifting of the straw crushing device needs to be reduced through the torsion spring.

Secondly, the pivot sets up two, and every locking wheel that is fixed to be equipped with is listed as at straw reducing mechanism's top both ends, and the fixed bolt of operating alone needs to come and go to run, and because torque spring does not have obvious "gear", still needs manual operation straw reducing mechanism's position to aim at the breach in the time of the fixed bolt, especially, rotates the locking wheel itself and also is a very laborious activity, and this undoubtedly makes the operation more loaded down with trivial details and hard again.

Therefore, the technical solutions in the prior art still have the problem and drawback.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model provides the turnover mechanism of the straw crushing device of the harvester and the harvester.

The utility model is realized by the following technical scheme:

the turnover mechanism of the straw smashing device of the harvester comprises the straw smashing device arranged at an outlet of a threshing chamber of the harvester, the top of the straw smashing device is connected with the outlet of the threshing chamber through a rotating shaft, a traction plate is arranged at one end of the rotating shaft, the traction plate and the straw smashing device rotate coaxially, and the traction plate is rotated to enable the straw smashing device to rotate by taking the rotating shaft as a shaft.

A locking device used for fixing the straw smashing device is also arranged between the threshing chamber and the straw smashing device.

Locking means is including locating threshing teeth and straw reducing mechanism on the latch fitting one and latch fitting two respectively, and latch fitting one and latch fitting two are vertical bar platelike fixing threshing teeth outer wall and straw reducing mechanism outer wall respectively, are equipped with at least one through-hole on latch fitting one and latch fitting two respectively, and the through-hole on the latch fitting one equals the through-hole on the latch fitting two with the perpendicular distance of pivot and the perpendicular distance of pivot.

Through holes in the first locking piece and the second locking piece of the locking device can be penetrated through bolts to be fixedly connected, so that the straw crushing device is fixed at the position when being lifted, and loading and conveying are facilitated.

Furthermore, a hollow part is arranged on the traction plate corresponding to the locking device, and the hollow part is waist-shaped. The hollow part can be convenient for the operation of the locking device, and the locking device can not be operated due to the blocking of the traction plate.

A pair of first shaft sleeves is arranged on the threshing chamber along the upper part of the upper edge of the outlet, the first shaft sleeves are respectively positioned at two ends of a rotating shaft, and the rotating shaft penetrates through the first shaft sleeves and is in running fit with the first shaft sleeves; a pair of second shaft sleeves is arranged at the top of the straw crushing device and located on the inner sides of the first shaft sleeves at the two ends of the rotating shaft, the second shaft sleeves are fixedly connected with the rotating shaft, and the straw crushing device rotates coaxially with the rotating shaft through the second shaft sleeves.

A rigid traction rope is arranged on the traction plate, the front end of the traction rope is fixed on the traction plate, and the traction rope is attached to the traction plate and wound by taking the rotating shaft as the center; the outer wall of the threshing chamber is provided with a traction rope winding and unwinding device, the tail end of the traction rope is fixedly connected with the winding and unwinding device, and the traction rope is tightened and loosened through the winding and unwinding device.

Furthermore, the traction plate is provided with an annular or arc-shaped groove, and the traction rope is wound along the groove.

Further, the traction plate is circular or fan-shaped, and the grooves are arranged along the edge of the traction plate.

The recess is used for restricting the position of haulage rope, prevents haulage rope dislocation. The grooves themselves may be provided on one of the sides of the traction plate separately or along the edges of the traction plate, preferably with the latter solution reducing the thickness of the traction plate.

The retraction device is an electric or manual winch. The winch in the prior art can be applied to the technical scheme of the utility model, the electric winch realizes the braking of the traction rope by the motor, and the manual winch realizes the braking of the traction rope by the ratchet wheel of the manual winch.

Furthermore, a steering wheel is arranged on the outer wall of the threshing chamber and on the same side of the traction rope, the traction rope bypasses the steering wheel, and the height of the steering wheel is larger than that of the rotating shaft. The direction of the traction rope can be changed to be vertical and downward under the action of the steering wheel, and the retractable device can be arranged at a lower position outside the outlet of the threshing chamber, so that a user can easily operate the retractable device.

The harvester comprises a threshing chamber, wherein a straw smashing device is arranged at an outlet of the threshing chamber, and the turnover mechanism of the straw smashing device is applied.

Set up straw reducing mechanism's tilting mechanism on the harvester, make things convenient for the harvester to carry through the freight train long distance and ship, when needing through freight train transportation, upwards lift up straw reducing mechanism, the length that lifts up the at least lower part of back harvester can be suitable for car hopper length and harvester wheel tread or athey wheel length similar freight train and ship, need not to block to close because the guardrail of freight train car hopper afterbody is blockked by straw reducing mechanism, and go to look for longer bigger freight train, increase the cost of transportation in vain.

The turnover mechanism of the straw smashing device of the harvester can realize that the straw smashing device can be easily disassembled and assembled by one person, is more trouble-saving and labor-saving than the prior art, so that when the harvester needs to transport for a long distance, a truck with the appropriate wheel track or crawler belt length is selected, and the transportation cost caused by selecting a longer truck is reduced. The straw smashing device can be quickly assembled and disassembled according to the treatment requirement of the harvested straws when the harvester is used for harvesting.

Drawings

FIG. 1 is a first structural schematic view (in use) of the straw crushing device of the present invention.

FIG. 2 is a second schematic view (in use) of the straw chopper of the present invention.

FIG. 3 is a schematic structural view (lifted state) of the straw crushing apparatus according to the present invention.

FIG. 4 is a schematic view of the structure of the rotating shaft of the turnover mechanism of the present invention.

FIG. 5 is a schematic view of the harvester of the present invention (in a state of using the straw cutting device).

Fig. 6 is a schematic view of the structure of the harvester of the utility model (the straw smashing device is in a lifting state).

Detailed Description

Referring to fig. 1 and 2, the turnover mechanism of the present invention includes a straw crushing device 20 disposed at an outlet of a threshing chamber 10 of the harvester, and the top of the straw crushing device 20 is connected to the outlet of the threshing chamber 10 through a rotating shaft 30.

In this embodiment, a pair of first bushings 31 is disposed on the threshing chamber 10 above the upper edge of the outlet, the first bushings 31 are respectively located at two ends of the rotating shaft 30, and the rotating shaft 30 passes through the first bushings 31 and is rotatably engaged with the first bushings 31. The top of the straw crushing device 20 is also provided with a pair of second shaft sleeves 32, and the second shaft sleeves 32 are positioned at the inner sides of the first shaft sleeves 31 at the two ends of the rotating shaft 30. The second shaft sleeve 32 is fixedly connected with the rotating shaft 30, and the straw crushing device 20 coaxially rotates with the rotating shaft 30 through the second shaft sleeve 32. The second shaft sleeve 32 and the rotating shaft 30 can be fixedly connected through a bolt 33.

The matching modes of the first shaft sleeve 31 and the second shaft sleeve 32 and the rotating shaft 30 in the embodiment can be interchanged, that is, the first shaft sleeve 31 and the rotating shaft 30 can also be fixedly connected, and the second shaft sleeve 32 and the rotating shaft 30 are in rotating matching.

In this embodiment, the first shaft sleeve 31 and the rotating shaft 30 can be rotatably connected through a bearing, but because the straw crushing device 20 has a heavy weight, the bearing bears too much weight to cause rapid wear, and the bearing with a large bearing capacity is selected to cause an increase in cost. In particular, the straw chopper 20 does not get on and off frequently, and the straw chopper 20 is lifted only when needed for transportation or when needed for chopping. Therefore, the steel pipe with thicker thickness is directly selected as the rotating shaft 30, so that the rotating shaft is not damaged, is wear-resistant, is simple in material selection, easy to process, firm and durable.

The straw crushing device 20 needs to be kept for a period of time after being lifted, and a locking device for fixing the straw crushing device is arranged between the threshing chamber and the straw crushing device.

As shown in fig. 1, fig. 2 and fig. 4, in this embodiment, the locking device includes a first locking piece 11 and a second locking piece 21 respectively disposed on the threshing chamber 10 and the straw crushing device 20, and the first locking piece 11 and the second locking piece 21 are respectively vertically fixed on the outer wall of the threshing chamber 10 and the outer wall of the straw crushing device 20. The first locking piece 11 and the second locking piece 21 are both provided with a pair of locking pieces and are respectively arranged at the outer walls of the threshing chamber 10 and the straw smashing device 20 and close to the two ends, and the first locking piece 11 and the second locking piece 21 are in one-to-one correspondence and are arranged in a staggered mode. Referring to fig. 4, bushing one 31 and bushing two 32 are fixed to locking element one 11 and locking element two 21, respectively.

As shown in fig. 4, the first locking element 11 and the second locking element 21 in this embodiment are both in the shape of a bar plate, and the first locking element 11 and the second locking element 21 are parallel to each other and are oriented perpendicular to the direction of the rotating shaft 30. At least one through hole 50 is respectively arranged on the first locking piece 11 and the second locking piece 21, and the vertical distance between the through hole 50 on the first locking piece 11 and the rotating shaft 30 is equal to the vertical distance between the through hole on the second locking piece 21 and the rotating shaft 30.

When the straw crushing apparatus 2 is lifted, after the through holes of the first locking part 11 and the second locking part 21 are aligned with each other, the position of the straw crushing apparatus 2 can be fixed by passing a bolt or a bolt 51 through the through hole 50, as shown in fig. 3.

Still referring to FIG. 1, a pulling plate 40 is provided at one end of the rotating shaft 30, the pulling plate 40 and the straw crushing device 20 rotate coaxially, and the rotating pulling plate 40 makes the straw crushing device 20 rotate around the rotating shaft 30.

When used, the plate 40 may be a single piece of circular shape or a sector shape, such as a quarter-circle sector shape, which is preferred in this embodiment, and the whole circle has a large area, a heavy weight, a high manufacturing cost, and is not practical.

Be equipped with rigid haulage rope 41 on the hitch plate 40, haulage rope 41 front end is fixed on the hitch plate 40 to use pivot 30 as the attached hitch plate 40 of center and coil, the coiling direction is opposite with the rising direction of straw reducing mechanism 20, when the straw reducing mechanism 20 put down, and haulage rope 41 coils on to the hitch plate 40, and when the straw reducing mechanism 20 rose, haulage rope 41 left the hitch plate 40.

The outer wall of the threshing chamber 10 is provided with a retracting device for a traction rope 41, the tail end of the traction rope 41 is fixedly connected with the retracting device, and the traction rope 41 is tightened and loosened through the retracting device. The retracting device in this embodiment is an electric or manual winch 44, which is directly available in the market in the prior art, and is arranged at a lower position outside the outlet of the threshing chamber, so that a human hand can easily operate the retracting device.

As shown in fig. 1 and 4, in the present embodiment, a groove 42 is provided along the edge of the traction plate 40, and the traction rope 41 is wound along the groove 42. The traction plate 40 of this embodiment is fan-shaped, so the groove 42 is also circular. If traction plate 40 is circular, groove 42 is annular.

In this embodiment, the traction plate 40 is fan-shaped and has a large area, and in order to reduce the weight of the traction plate 40, a hollow portion 43 is provided on the traction plate 40, as shown in fig. 1 and 3, the hollow portion 43 has a kidney shape. In this embodiment, the through-hole 43 is aligned with the through-hole 50 of the locking device, and when the straw crushing device 20 needs to be fixed or loosened, the latch 51 can be operated through the through-hole 43 without being blocked.

The outer wall of the threshing chamber 10 is also provided with a steering wheel 45 on the same side as the traction rope 41, the traction rope 41 bypasses the steering wheel 45, and the height of the steering wheel 45 is greater than that of the rotating shaft 30.

As shown in fig. 5 and 6, the harvester of the present invention includes a threshing chamber 10, a straw crushing device 20 is provided at an outlet of the threshing chamber 10, and a turnover mechanism of the present invention is provided between the straw crushing device 20 and the threshing chamber 10. When required, the straw smashing device 20 can be lifted, the straws do not need to be smashed when the straws are harvested, or the straw smashing device is lifted, so that the space of the part below the straw smashing device can be made, and the length and the height of the part can be just transported by a truck.

Claims

1. The turnover mechanism of the straw crushing device of the harvester comprises the straw crushing device arranged at an outlet of a threshing chamber of the harvester, and the top of the straw crushing device is connected with the outlet of the threshing chamber through a rotating shaft; a locking device for fixing the straw crushing device is also arranged between the threshing chamber and the straw crushing device.

2. The turnover mechanism of the straw crushing device of the harvester as claimed in claim 1, wherein the locking device comprises a first locking piece and a second locking piece which are respectively arranged on the threshing chamber and the straw crushing device, the first locking piece and the second locking piece are respectively in a strip plate shape and are vertically fixed on the outer wall of the threshing chamber and the outer wall of the straw crushing device, at least one through hole is respectively arranged on the first locking piece and the second locking piece, and the vertical distance between the through hole on the first locking piece and the rotating shaft is equal to the vertical distance between the through hole on the second locking piece and the rotating shaft.

3. The turnover mechanism of the straw crushing device of the harvester as claimed in claim 2, wherein a hollow part is arranged on the traction plate corresponding to the locking device, and the hollow part is waist-shaped.

4. The turnover mechanism of the straw crushing device of the harvester as claimed in claim 1, wherein a pair of first shaft sleeves are arranged on the threshing chamber above the upper edge of the outlet, the first shaft sleeves are respectively positioned at two ends of a rotating shaft, and the rotating shaft penetrates through the first shaft sleeves and is in running fit with the first shaft sleeves; a pair of second shaft sleeves is arranged at the top of the straw smashing device, the second shaft sleeves are located on the inner sides of the first shaft sleeves at the two ends of the rotating shaft and fixedly connected with the rotating shaft, and the straw smashing device coaxially rotates with the rotating shaft through the second shaft sleeves.

5. The turnover mechanism of the straw crushing device of the harvester as claimed in any one of claims 1 to 4, wherein a rigid traction rope is arranged on the traction plate, the front end of the traction rope is fixed on the traction plate, and the traction rope is attached to the traction plate and wound around the rotating shaft; the outer wall of the threshing chamber is provided with a traction rope winding and unwinding device, the tail end of the traction rope is fixedly connected with the winding and unwinding device, and the traction rope is tightened and loosened through the winding and unwinding device.

6. The turnover mechanism of the straw crushing device of the harvester as claimed in claim 5, wherein the traction plate is provided with a circular or arc-shaped groove, and the traction rope is wound along the groove.

7. The turnover mechanism of the straw crushing device of the harvester as claimed in claim 6, wherein the traction plate is circular or fan-shaped, and the groove is formed along the edge of the traction plate.

8. The turnover mechanism of the straw crushing device of the harvester according to claim 5, wherein the retraction device is an electric or manual winch.

9. The turnover mechanism of the straw crushing device of the harvester as claimed in claim 5, wherein a steering wheel is further arranged on the outer wall of the threshing chamber on the same side as the traction rope, the traction rope goes around the steering wheel, and the height of the steering wheel is greater than that of the rotating shaft.

10. The harvester comprises a threshing chamber, wherein a straw smashing device is arranged at an outlet of the threshing chamber, and the straw smashing device is provided with the turnover mechanism as claimed in any one of claims 1 to 9.