CN218959521U

CN218959521U - Multifunctional threshing machine with detachable screen

Info

Publication number: CN218959521U
Application number: CN202120516511.4U
Authority: CN
Inventors: 鄢家友; 郑波
Original assignee: Sichuan Heli Agricultural Machinery Co ltd
Current assignee: Sichuan Heli Agricultural Machinery Co ltd
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2023-05-05
Anticipated expiration: 2031-03-11

Abstract

The utility model discloses a multifunctional threshing machine with a detachable screen, which comprises a frame and a screen; the two sides of the screen are connected with the frame; the two sides of the frame are respectively provided with a screen installation hole connected with the screen, and the two sides of the screen are respectively and fixedly connected with the screen installation holes in a detachable mode through adjusting and fixing mechanisms. According to the detachable connection mode, the screen is convenient to replace or maintain under the condition that the screen is damaged.

Description

Multifunctional threshing machine with detachable screen

Technical Field

The utility model relates to the technical field of agricultural machinery, in particular to a multifunctional threshing machine with a detachable screen.

Background

With the development of scientific technology, the traditional cultivation method has been changed in agriculture, and traditional manual work is replaced by mechanization or semi-mechanization, so that for the rice planting industry, various automatic devices such as cultivation machinery, seeding and seedling raising and transplanting machinery, plant protection machinery, combine harvesting machinery, drying machinery and the like are emerging. For the latter farmers in areas with remote areas or less cultivated areas, the purchase of the above-mentioned equipment is a little more and less expensive, and because of the limited availability of small, large automated equipment on the ground, some equipment is designed for this part of the market. Grain harvesting machinery for threshing off the grains of harvested cereal crops, mainly rice and wheat. Typically a stationary work machine driven by an electric motor or internal combustion engine and mounted on a yard. In the prior art, the screen cloth is welded on the frame, and the screen cloth is inconvenient to replace under the condition that the screen cloth is damaged.

Disclosure of Invention

The utility model provides a multifunctional threshing machine with a detachable screen, which aims to solve one of the technical problems that: under the condition that the screen cloth is damaged, the screen cloth is inconvenient to replace.

In view of the foregoing problems of the prior art, according to one aspect of the disclosure, the present utility model adopts the following technical solutions:

a multifunctional threshing machine with a detachable screen comprises a frame and a screen;

the two sides of the screen are connected with the frame;

the two sides of the frame are respectively provided with a screen installation hole connected with the screen, and the two sides of the screen are respectively and fixedly connected with the screen installation holes in a detachable mode through adjusting and fixing mechanisms.

In order to better realize the utility model, the further technical scheme is as follows:

further, the adjusting and fixing mechanism is a bolt and nut fastening structure.

Further, the screen is an arc screen.

Further, a threshing roller is arranged above the screen.

Further, two ends of the threshing roller are rotatably connected with the frame.

Further, the two ends of the threshing roller are rotatably connected with the frame through bearings.

Further, a first flange connected with a power device is arranged at one end of the threshing roller.

Further, an auger is arranged below the screen.

Further, one end of the spiral propeller is provided with a second flange connected with another power device.

Further, the auger is connected to the thresher.

Compared with the prior art, the utility model has one of the following beneficial effects:

according to the multifunctional threshing machine with the detachable screen, the two sides of the screen are detachably and fixedly connected with the screen mounting holes on the rack, and the screen is convenient to replace or maintain under the condition that the screen is damaged in the detachable connection mode.

Drawings

For a clearer description of embodiments of the present application or of solutions in the prior art, reference will be made below to the accompanying drawings, which are used in the description of embodiments or of the prior art, it being apparent that the drawings in the description below are only references to some embodiments of the present application, from which other drawings can be obtained, without inventive effort, for a person skilled in the art.

Fig. 1 shows a simplified schematic side view of a threshing machine according to one embodiment of the utility model.

Fig. 2 shows a simplified schematic partial cross-section of a threshing machine according to one embodiment of the utility model.

Fig. 3 shows a simplified schematic partial cross-section of a threshing machine according to another embodiment of the utility model.

Fig. 4 shows a simplified schematic of a screen adjustment mechanism according to one embodiment of the utility model.

Fig. 5 shows a simplified schematic of a thresher housing according to an embodiment of the present utility model.

Fig. 6 shows a simplified schematic diagram of a connection plate on a thresher casing according to an embodiment of the present utility model.

Wherein, the names corresponding to the reference numerals in the drawings are:

the threshing cylinder, the 2-screw propeller, the 3-frame, the 4-first flange, the 5-rotating shaft adjusting hole, the 6-second flange, the 7-thresher, the 8-screen, the 9-adjusting hole, the 10-adjusting spring, the 11-adjusting fixing mechanism, the 12-ear, the 13-bolt mechanism, the 14-bolt, the 15-chute mechanism, the 16-arc opening, the 17-bending part, the 18-thresher shell, the 19-upper thresher shell, the 20-lower thresher shell, the 21-hinge, the 22-upper connecting plate, the 23-lower connecting plate, the 24-connecting screw, the 25-opening, the 26-material pipe, the 27-separator, the 28-feeding hole, the 29-discharging hole, the 30-baffle, the 31-adjusting hole, the 32-adjusting screw and the 33-adjusting valve.

Detailed Description

The present utility model will be described in further detail with reference to examples, but embodiments of the present utility model are not limited thereto.

As shown in fig. 1 to 6, a multifunctional threshing machine comprises a frame 3, a threshing cylinder 1, a screen 8, a screw propeller 2, a thresher 7 and a separator 27.

The threshing roller 1 is arranged in the frame 3, two ends of the threshing roller 1 are rotatably connected with the frame 3, and the threshing roller 1 can be used for threshing crops through rotation. Bearings can be respectively arranged at two ends of the threshing roller 1 and are in rotary connection with the frame 3, a first flange 4 can be arranged at one end of the threshing roller 1, the first flange 4 is connected with a power device through a transmission device, the transmission device is preferably a transmission belt, and the power device generally adopts a motor.

The screen 8 is arranged below the threshing roller 1 and is a generally arc-shaped screen; the two sides of the screen 8 are connected with the frame 3. The screen mesh 8 of the existing equipment is welded in the frame 3, and is inconvenient to detach and replace. Therefore, two sides of the frame 3 in this embodiment are respectively provided with a screen mounting hole connected with the screen 8, and two sides of the screen 8 are respectively detachably and fixedly connected with the screen mounting hole through an adjusting and fixing mechanism 11. The screen 8 is conveniently replaced by a detachable connection mode. The adjusting and fixing mechanism 11 can be a bolt-and-nut fastening structure or other connection modes for realizing detachable connection.

And the distance between the threshing roller 1 and the screen 8 of the existing threshing machine is relatively fixed, and the threshing effect can not be influenced by automatic adjustment according to the feeding amount in the threshing process. For this purpose, in this embodiment, two sides of the frame 3 are respectively provided with an adjusting hole 9 connected with the screen 8, and two sides of the screen 8 are respectively connected with the adjusting holes 9 through an adjusting and fixing mechanism 11; an adjusting spring 10 is arranged below the screen 8 or the adjusting and fixing mechanism 11. The installation height of the screen 8 can be adjusted through the adjusting holes 9 and the adjusting springs 10, and vibration of the screen 8 in threshing process is reduced.

For a specific installation mode of the adjusting spring 10, the adjusting springs 10 can be respectively arranged at two sides below the screen 8. And an adjusting spring 10 may be located outside the frame 3.

For a better implementation of the above structure, as shown in fig. 4, an ear 12 connected to the adjusting and fixing mechanism 11 may be provided on the screen 8. The adjusting and fixing mechanism 11 may include a screw, and the ear portion 12 is provided with a through hole connected to the screw. I.e. the screws or bolts are fastened by nuts or other means after passing through the through holes in the ears 12 and the frame 3.

The above form of the adjustment holes 9 may be provided as bar-shaped adjustment holes or the like.

The screw propeller 2 is arranged in the frame 3 below the screen 8 and can rotate, and the screw propeller 2 is generally positioned at the bottom of the frame 3, and the screw propeller 2 can rotate to propel threshed crop fruits. One end of the screw propeller 2 is provided with a second flange 6, and the second flange 6 is connected with another power device through a transmission belt. The transmission belt of the present embodiment may be replaced with other transmission methods.

In the mode, the threshing roller 1 and the spiral propeller 2 are driven by one power device respectively, so that the defect of insufficient power caused by the fact that one motor drives the threshing roller 1 and the spiral propeller 2 to operate in the existing equipment is overcome. The power of the threshing machine is more sufficient, the running is more stable, and the threshing efficiency is improved.

One side above the frame 3 is provided with a feed inlet 28 for the crop to be threshed, the other side of the frame 3 is provided with a discharge outlet 29 for discharging the threshed coarse straw, and a baffle 30 is arranged above the discharge outlet 29. Since coarse material discharged from the discharge port 29 is thrown upward by a certain height, the working environment is affected. For this reason, the range of coarse material throw is reduced by the baffle 30, and the working environment is improved. And one side of the baffle 30 is rotatably connected with the frame 3 for adjusting the baffle 30. Further, an adjusting hole 31 for adjusting the rotation radian of the baffle 30 is formed in the baffle 30, and an adjusting screw 32 is arranged in the adjusting hole 31. That is, the baffle plate 30 is rotated to change the inclination degree thereof, the adjusting screw 32 is moved in the adjusting hole 31, and after adjustment, the adjusting screw 32 positioned at a certain position in the adjusting hole 31 can be fixed by a nut.

The shape of the adjustment hole 31 is preferably an arc shape as shown in fig. 1 and 2, but other shapes are also possible.

The other end of the screw propeller 2 can be connected with the thresher 7; the thresher 7 is connected via a pipe 26 to the separator 27. A cone may be arranged in the separator 27, and after the threshed grains fall on the cone, grains and fine materials are separated, and a grain outlet is arranged at the lower end of the separator 27.

And as shown in fig. 3, in order to adjust the air volume in the separator 27, the pipe 26 is provided with an adjusting valve 33, and the air volume is adjusted by adjusting the closing degree of the valve 33.

As shown in fig. 5, the thresher 7 includes a thresher housing 18 and a blade mechanism, not shown, provided in the thresher housing 18; the blade mechanism is connected with the spiral propeller 2; the thresher housing 18 is divided into an upper thresher housing 19 and a lower thresher housing 20 which are independent from each other; the upper thresher housing 19 is rotatably connected to one side of the lower air thresher housing 20, and the upper air thresher housing 19 is detachably connected to the other side of the lower air thresher housing 20. The existing thresher shell 18 is of an integral structure, and the blade mechanism in the thresher 7 is convenient to install, replace and maintain in the mode.

The interface between the upper and

lower thresher housings

19, 20 coincides with the axis of rotation of the blade mechanism. The thresher housing 18 can be divided into two parts according to the plane of the axis of the rotating shaft of the blade mechanism. The upper thresher housing 19 and one side of said lower thresher housing 20 are hinged, i.e. are rotatably connected in a hinged manner. For example, the upper and

lower thresher housings

19 and 20 are connected to each other by a hinge 21.

As shown in fig. 5 and 6, for the structure of detachable connection between the upper thresher housing 19 and the other side of the lower thresher housing 20, an embodiment of the structure may include an upper connection plate 22, a lower connection plate 23 and a connection screw 24, where the upper connection plate 22 is connected to the upper thresher housing 19, the lower connection plate 23 is connected to the lower thresher housing 20, the lower connection plate 23 is fixedly connected to the connection screw 24, and an opening 25 for the connection screw 24 to be snapped in is provided on the upper connection plate 22.

As shown in fig. 2 and 3, a rotating shaft adjusting hole 5 matched with the rotating shaft of the spiral propeller 2 is arranged on the frame 3; the rotating shaft adjusting hole 5 is larger than the rotating shaft of the screw propeller 2 and is used for adjusting the installation position of the rotating shaft of the screw propeller 2. In this embodiment, it is considered that if a hole having a size exactly corresponding to the rotation axis of the screw propeller 2 is directly formed in the frame 3, the coaxiality of the screw propeller 2 and the thresher 7 cannot be ensured due to the problem of machining precision, and thus the rotation axis adjusting hole 5 is provided so as to adjust the fixed position of the rotation axis of the screw propeller 2.

And in order to prevent crop particles such as grains from leaking out of the rotating shaft adjusting hole 5, a bolt mechanism 13 for closing the rotating shaft adjusting hole 5 to the size matching with the rotating shaft of the screw propeller 2 can be arranged on the frame 3 at the rotating shaft adjusting hole 5.

An embodiment of the latch mechanism 13 may include a latch 14 and a chute mechanism 15, where the latch 14 is inserted into the chute mechanism 15 and is capable of moving, and an arc opening 16 is disposed on the latch 14 and matched with the rotating shaft of the screw propeller 2.

The upper end of the latch 14 may be provided with a bent portion 17 to facilitate handholding.

The latch 14 may be a metal sheet or the like.

The chute mechanism 15 may comprise a metal piece tightly connected to the frame 3 on one side, and a gap between the other side of the metal piece and the frame 3 forms a chute for the insertion of the latch 14.

The number of the sliding groove mechanisms 15 is two, and the sliding groove mechanisms are respectively positioned at two sides of the bolt 14.

In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by a difference from other embodiments, and identical and similar parts between the embodiments are mutually referred.

Reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described in general in the present application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is intended that such feature, structure, or characteristic be implemented within the scope of the utility model.

Although the utility model has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope and spirit of the principles of this disclosure. More specifically, various variations and modifications may be made to the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure and claims of this application. In addition to variations and modifications in the component parts and/or arrangements, other uses will be apparent to those skilled in the art.

Claims

1. A multifunctional threshing machine with a detachable screen comprises a frame (3) and a screen (8);

both sides of the screen (8) are connected with the frame (3);

the device is characterized in that screen mounting holes connected with the screen (8) are respectively formed in two sides of the frame (3), and two sides of the screen (8) are detachably and fixedly connected with the screen mounting holes through adjusting and fixing mechanisms (11).

2. The multifunctional threshing machine with removable screen according to claim 1, characterized in that the adjusting and fixing mechanism (11) is a bolt-nut fastening structure.

3. The multifunctional threshing machine with removable screen according to claim 1, characterized in that the screen (8) is an arc-shaped screen.

4. The multifunctional threshing machine with a detachable and replaceable screen mesh according to claim 1, characterized in that a threshing roller (1) is arranged above the screen mesh (8).

5. The multifunctional threshing machine with a detachable screen according to claim 4, characterized in that two ends of the threshing roller (1) are rotatably connected with the frame (3).

6. The multifunctional threshing machine with a detachable screen according to claim 5, characterized in that the two ends of the threshing roller (1) are rotatably connected with the frame (3) through bearings.

7. A multifunctional threshing machine with removable screen according to any one of claims 4-6, characterized in that a first flange (4) connected with a power device is arranged on one end of the threshing cylinder (1).

8. The multifunctional threshing machine with removable screen according to claim 1, characterized in that a screw propeller (2) is arranged below the screen (8).

9. The multifunctional threshing machine with removable screen according to claim 8, characterized in that one end of the screw propeller (2) is provided with a second flange (6) connected with another power device.

10. A sieve removable multi-function thresher as claimed in claim 8 or 9, characterized in that the auger (2) is connected to a thresher (7).