CN212436375U

CN212436375U - Pulling type carrot tassel fruit separation mechanism driven by multistage non-circular gear box

Info

Publication number: CN212436375U
Application number: CN202020920470.0U
Authority: CN
Inventors: 宋慧鹏; 孙丽颖; 谷明涛; 叶军; 曾功俊
Original assignee: Zhejiang Industry Polytechnic College
Current assignee: Zhejiang Industry Polytechnic College
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-02-02
Anticipated expiration: 2030-05-27

Abstract

The embodiment of the utility model provides a multistage non-circular gear case driven draws formula carrot tassel fruit separating mechanism that draws, draw the mechanism and draw the mechanism including multistage non-circular gear case drive mechanism, left side, the same rotation opposite that turns to of the rotational speed of two gear box output shafts of multistage non-circular gear case drive mechanism drives respectively left side and draws the mechanism rotation of drawing with the right side. Through the non-circular gears in the multi-stage non-circular gear box transmission mechanism, the working efficiency is optimal, the damage rate of carrots is reduced, and the fruit and seedling separation effect is improved.

Description

Pulling type carrot tassel fruit separation mechanism driven by multistage non-circular gear box

Technical Field

The utility model belongs to the field of agricultural machinery, a carrot harvester is related to, concretely relates to multistage non-circular gear case driven draws formula of dragging carrot tassel fruit separating mechanism.

Background

Carrot is an agricultural product eaten by residents in China, the annual output of carrot in China accounts for about one third of the annual output of the world, but the mechanical harvesting level is very low, most regions mainly rely on manual harvesting, the technology of carrot harvesters used in a few regions is not mature, and various problems still exist.

At present, harvesting parts of self-propelled carrot harvesters sold in markets at home and abroad mainly comprise a disc cutter type harvesting part and a pulling type harvesting part driven by hydraulic transmission. The disc cutter type harvesting component cuts off carrot tassels through the disc cutter, the carrot is easy to cut in the harvesting process, the harvesting quality is poor, and the damage rate is high; the traditional pulling type harvesting part driven by a non-circular gear drives two groups of pulling rods through a pair of high-order non-circular gear pairs to separate carrot tassels from carrots, the non-circular gear is concave, the manufacturing difficulty is high, the precision is low, the reliability is low, the speed curve of the action of the pulling rods and the carrots is not ideal, and the harvesting effect of the mechanism is not expected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a multistage non-circular gear case driven draws formula of dragging carrot tassel fruit separating mechanism to solve the incomplete problem of carrot tassel fruit separation that exists in the current carrot tassel fruit disengaging process.

In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:

the embodiment of the utility model provides a multistage non-circular gear case driven draws formula carrot tassel fruit separating mechanism that draws, draw the mechanism and draw the mechanism including multistage non-circular gear case drive mechanism, left side, the same rotation opposite that turns to of the rotational speed of two gear box output shafts of multistage non-circular gear case drive mechanism drives respectively left side and draws the mechanism rotation of drawing with the right side.

Further, the multistage non-circular gear box transmission mechanism comprises a non-circular gear pair, a reduction gear pair and a constant speed gear pair which are in transmission connection in sequence.

Furthermore, the non-circular gear pair comprises a driving non-circular gear and a driven non-circular gear which are meshed with each other, the driving non-circular gear is fixedly connected with the power shaft, and the driven non-circular gear is fixedly connected with the transmission shaft.

Further, the reduction gear pair comprises a driving reduction gear and a driven reduction gear which are meshed with each other, the driving reduction gear is coaxial with the driven non-circular gear, and the driven reduction gear is mounted on one of the gearbox output shafts.

Further, the pair of constant velocity gears includes a driving constant velocity gear and a driven constant velocity gear that are engaged with each other, the driving constant velocity gear being coaxial with the driven reduction gear, the driven constant velocity gear being fixed to the other of the gearbox output shafts.

Further, the mechanism is dragged with the right side to a left side, and all include the initiative disc, drag the pole and driven disc, drag the pole and have many, drag the both ends of pole and rotate respectively and connect on initiative disc and driven disc.

Further, the pulling rods on the left pulling mechanism and the right pulling mechanism are coupled in a staggered manner.

Further, draw the pole and include the left installation pole, left turning arm, draw the position, right turning arm and the right installation pole that connect gradually, the axis of left installation pole and right installation pole is parallel to each other but the misalignment.

Further, the axes of the driving disk and the driven disk are parallel but not coincident with each other.

Furthermore, a driven shaft is installed on the driven disc and is rotatably connected to the disc support.

According to the technical scheme, the utility model discloses a multistage non-circular gear case driven mode transmission power reduces a power unit to guaranteed two sets of pull pole subassembly synchronous operation of dragging, improved the reliability of results part. Through the non-circular gears in the multi-stage non-circular gear box transmission mechanism, the working efficiency is optimal, the damage rate of carrots is reduced, and the fruit and seedling separation effect is improved.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a perspective view of a pull-type carrot tassel and fruit separating mechanism according to an embodiment of the present invention;

FIG. 2 is a perspective view of the multi-stage non-circular gearbox transmission mechanism in the embodiment of the present invention;

fig. 3 is a schematic diagram of the engagement between the driving non-circular gear and the driven non-circular gear according to the embodiment of the present invention;

fig. 4 is a perspective view of a pulling mechanism in an embodiment of the present invention;

in the figure: 1. the multi-stage non-circular gear box transmission mechanism comprises a multi-stage non-circular gear box transmission mechanism, 2, a left pulling mechanism, 3, a power shaft, 4, a driving non-circular gear, 5, a transmission shaft, 6, a driven non-circular gear, 7, a driving reduction gear, 8, a driven reduction gear, 9, a driving constant speed gear, 10, a driven constant speed gear, 11, a gear box output shaft, 12, a driving disc, 13, a pulling rod, 14, a driven shaft, 15, a disc support, 16, a driven disc, 17 and a right pulling mechanism.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "left", "right", and the like in the description and claims of the present application and the accompanying drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

As shown in fig. 1, the embodiment provides a synchronous pulling type carrot harvesting mechanism driven by a multi-stage non-circular gearbox, which includes a multi-stage non-circular gearbox transmission mechanism 1, a left pulling mechanism 2 and a right pulling mechanism 17, wherein the two gearbox output shafts of the multi-stage non-circular gearbox transmission mechanism 1 have the same rotation speed and opposite rotation directions, and respectively drive the left pulling mechanism 2 and the right pulling mechanism 17 to rotate.

As shown in fig. 2 to 3, the multi-stage non-circular gearbox transmission mechanism 1 comprises a non-circular gear pair, a reduction gear pair and a constant speed gear pair which are in sequential transmission connection with the multi-stage non-circular gearbox transmission mechanism 1.

Specifically, the non-circular gear pair comprises a driving non-circular gear 4 and a driven non-circular gear 6 which are meshed with each other, the driving non-circular gear 4 is fixedly connected with the power shaft 3 through a key, and the driven non-circular gear 6 is fixedly connected with the transmission shaft 5 through a key. The reduction gear pair comprises a driving reduction gear 7 and a driven reduction gear 8 which are meshed with each other, the driving reduction gear 7 and the driven non-circular gear 6 are coaxial, and the driven reduction gear 8 is mounted on one gear box output shaft 11. The constant speed gear pair includes a driving constant speed gear 9 and a driven constant speed gear 10 which are engaged with each other, the driving constant speed gear 9 is coaxial with the driven reduction gear 8, and the driven constant speed gear 10 is fixed to another gear box output shaft 11.

The non-circular gear pair can adopt the combination of the non-circular gear and the circular gear, the pitch curve of the non-circular gear is adjusted according to the requirement of the output speed curve required by the pulling rod, the requirement of synchronous action of the left pulling mechanism 2 and the right pulling mechanism 17 according to a specific speed curve can be met, and the reliability is high. It is common knowledge in the art to adjust the pitch curve of the non-circular gear to meet the speed profile requirements. The first-order non-circular gear and the circular gear are combined, the gear box formed by combining the first-order non-circular gear and the circular gear can reduce the order of the non-circular gear, the manufacturing difficulty of the gear is reduced, the transmission precision is improved, and the speed output requirement of the pulling rod set is met.

As shown in fig. 4, the left pulling mechanism 2 and the right pulling mechanism 17 have the same structure, and each of the left pulling mechanism and the right pulling mechanism includes a driving disc 12, a pulling rod 13, a driven shaft 14, a disc support 15, and a driven disc 16, wherein the pulling rod 13 has a plurality of pulling rods, and both ends of each pulling rod 13 are respectively rotatably connected to the driving disc 12 and the driven disc 16.

Specifically, the driving disk 12 and the driven disk 16 are both provided with 5 circular holes uniformly distributed along the circumference and 1 central hole positioned at the center of the disks; each circular hole distributed on the circumference of the driving disc 12 and the driven disc 16 is connected with the outer ring of a pair of bearings arranged in opposite directions in a matching way; each pair of bearings is axially positioned through a shaft sleeve; the inner ring of each pair of bearings in the circular holes distributed on the circumference of the disc is connected with one end of a pulling rod 13 in a matching way, and the other end of each pulling rod 13 is connected with a pair of bearing inner rings in the corresponding circular holes distributed on the circumference of the driven disc 16 in a matching way; the end parts of the two ends of the pulling rod 13 are connected with round nuts to realize axial fixation.

The axes of the driving disc 12 and the driven disc 16 of the left pulling mechanism 2 and the right pulling mechanism 17 are both arranged in parallel, and one pair or two pairs of pulling rods 13 positioned at the inner sides of the left pulling mechanism 2 and the right pulling mechanism 17 are arranged in a staggered way. The central shaft holes of the driving discs 12 of the left pulling mechanism 2 and the right pulling mechanism 17 are respectively connected with a gear box output shaft 11 through keys, and the end part of the gear box output shaft 11 is connected with a round nut to realize axial fixation.

The central shaft holes of the driven discs 16 of the left pulling mechanism 2 and the right pulling mechanism 17 are respectively connected with the outer rings of a pair of bearings which are arranged in a reverse direction in a matching way; each pair of bearings is axially positioned through a shaft sleeve; the inner ring of each pair of bearings in the central hole of the driven disc 16 is matched and connected with a driven shaft 14; one end part of the driven shaft 14 is connected with the round nut to realize axial fixation; the other end of the driven shaft 14 is fixed on the disc support 15 through being connected with a nut.

Further, draw the pole of dragging of this embodiment and include left installation pole, left crank arm, draw the position, right crank arm and the right installation pole that connect gradually, the axis of left installation pole and right installation pole is parallel to each other but does not coincide.

Furthermore, the pulling part is provided with a plurality of side-by-side inclined needle roller groups. In the embodiment, a mode of parallel inclined needle rollers and a connection mode of a segmented rolling bearing are adopted, so that the parallel inclined needle roller rods on the pulling rod 13 can rotate and revolve. The working principle that the pulling rod and the carrots slide relatively originally is changed into relative rolling, so that the damage rate of the carrots is reduced, and the carrots can be stored for a long shelf life conveniently.

After the carrots are pulled out of the ground, the carrots are sent to the lower parts of the left pulling mechanism 2 and the right pulling mechanism 17, and the driving discs 12 of the left pulling mechanism 2 and the right pulling mechanism 17 are opposite in direction and are in the direction of pulling the carrots downwards. The pulling rods 13 of the left pulling mechanism 2 and the right pulling mechanism 17 are meshed with each other in a staggered mode, when carrots reach the lower portions of the left pulling mechanism 2 and the right pulling mechanism 17, the driving disc 12 rotates, the pulling rods 13 on the left side and the right side are close to each other, carrot leaves are tightened firstly, after the driving disc 12 further rotates, the pulling rods 13 on the left pulling mechanism 2 and the right pulling mechanism 17 are meshed with each other in a staggered mode, the gap between the pulling rods 13 on the left side and the right side is smaller and smaller, the pulling part on the pulling rod 13 below is firmly pressed against the upper surface of the carrot roots gradually, when the gap is the smallest, part of the carrot leaves are squeezed and cut off, the pulling rod 13 below is firmly pressed against the upper surface of the carrot roots, and the pulling rod 13 rotates to generate downward acting force to pull the carrots so that the carrot leaves are separated from the root leaves at the part just squeezed.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The pulling type carrot tassel and fruit separating mechanism driven by the multistage non-circular gearbox is characterized by comprising a multistage non-circular gearbox transmission mechanism (1), a left pulling mechanism (2) and a right pulling mechanism (17), wherein the rotating speeds of two gearbox output shafts of the multistage non-circular gearbox transmission mechanism (1) are the same, the rotating directions are opposite, and the left pulling mechanism (2) and the right pulling mechanism (17) are respectively driven to rotate.

2. The pulling type carrot tassel and fruit separating mechanism driven by multi-stage non-circular gear box as claimed in claim 1, characterized in that the multi-stage non-circular gear box transmission mechanism (1) comprises a non-circular gear pair, a reduction gear pair and a constant speed gear pair which are connected in sequence.

3. The pulling type carrot tassel and fruit separating mechanism driven by multi-stage non-circular gear box as claimed in claim 2, wherein the non-circular gear pair comprises a driving non-circular gear (4) and a driven non-circular gear (6) which are meshed with each other, the driving non-circular gear (4) is fixedly connected with the power shaft (3), and the driven non-circular gear (6) is fixedly connected with the transmission shaft (5).

4. The pulling type carrot tassel fruit separation mechanism driven by multi-stage non-circular gear box according to claim 3 is characterized in that the reduction gear pair comprises a driving reduction gear (7) and a driven reduction gear (8) which are meshed with each other, the driving reduction gear (7) and the driven non-circular gear (6) are coaxial, and the driven reduction gear (8) is installed on one gear box output shaft.

5. The pulling type carrot tassel fruit separation mechanism driven by multi-stage non-circular gear box as claimed in claim 4, characterized in that the constant speed gear pair comprises a driving constant speed gear (9) and a driven constant speed gear (10) which are meshed with each other, the driving constant speed gear (9) is coaxial with the driven reduction gear (8), and the driven constant speed gear (10) is fixed on the output shaft of the other gear box.

6. The pulling type carrot tassel and fruit separating mechanism driven by the multi-stage non-circular gearbox is characterized in that the left pulling mechanism (2) and the right pulling mechanism (17) are identical in structure and comprise a driving disc (12), a pulling rod (13) and a driven disc (16), the pulling rod (13) comprises a plurality of pulling rods, and two ends of each pulling rod (13) are rotatably connected to the driving disc (12) and the driven disc (16) respectively.

7. The multi-stage non-circular gearbox-driven pulling type carrot tassel and fruit separation mechanism is characterized in that pulling rods (13) on the left pulling mechanism (2) and the right pulling mechanism (17) are coupled with each other in a staggered mode.

8. The multi-stage non-circular gearbox-driven pulling type carrot tassel and fruit separating mechanism according to claim 6, wherein the pulling rod comprises a left mounting rod, a left crank arm, a pulling portion, a right crank arm and a right mounting rod which are connected in sequence, and the axes of the left mounting rod and the right mounting rod are parallel but not coincident.

9. The multi-stage non-circular gearbox-driven pull-type carrot tassel and fruit separation mechanism according to claim 6, characterized in that the axes of the driving disc (12) and the driven disc (16) are parallel but not coincident with each other.

10. The pulling type carrot tassel and fruit separating mechanism driven by multi-stage non-circular gear box as claimed in claim 6, characterized in that the driven shaft (14) is mounted on the driven disc (16), and the driven shaft (14) is rotatably connected to the disc support (15).