CN220693777U

CN220693777U - Cutting head of leek harvester

Info

Publication number: CN220693777U
Application number: CN202322146380.7U
Authority: CN
Inventors: 张文洁
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-08-10
Filing date: 2023-08-10
Publication date: 2024-04-02
Anticipated expiration: 2033-08-10

Abstract

The utility model discloses a cutting head of a leek harvester, which comprises a shell, wherein a cover body is arranged at the upper end of the shell, a power input port and a power balance port are formed in two side walls of the shell, a cutting force output port is formed in the lower end of the shell, a first bevel gear is coaxially arranged in the shell, a first output shaft and a second output shaft are coaxially arranged below the first bevel gear in sequence, the first bevel gear is coaxially fixed on the first output shaft, the first output shaft is rotatably arranged on a first mounting plate, the second output shaft is rotatably arranged on a second mounting plate, the lower end of the first output shaft is connected with the upper end of the second output shaft through a speed reducing mechanism for transmission, the lower end of the second output shaft extends downwards to the outside of the shell, a cutting saw blade is coaxially fixed at the lower end of the second output shaft, and a second bevel gear and a third bevel gear are respectively arranged on two sides above the first bevel gear. The utility model has good transmission stability, long service life and convenient replacement and maintenance of parts.

Description

Cutting head of leek harvester

Technical Field

The utility model relates to the technical field of Chinese chive harvesting equipment, in particular to a cutting head of a Chinese chive harvester.

Background

In recent years, with the rapid development of mechanization of vegetable production, the planting area of the Chinese chives is gradually enlarged and an industry is formed, but compared with the whole process mechanization of foreign Chinese chives production, the mechanization level of Chinese chives in many places in China is still lower, the harvesting technology of the current Chinese chives harvester is not mature, as the utility model with the patent number of CN202222967137.7 discloses a Chinese chives harvester, the cutting head of the Chinese chives harvester comprises a shell seat, a shell, a cutting saw blade, a cutting half shaft, a first bevel gear and a second bevel gear, the mechanical stability of the structure of the cutting head which is laterally meshed through the first bevel gear and the second bevel gear is poor, the abrasion of the gears is accelerated, meanwhile, the bevel gear lacks a lubrication structure, the service life of the bevel gear is reduced, the bevel gear needs to be replaced regularly, the manufacturing cost of the bevel gear is high, the replacement cost is high, in addition, the cutting head does not have a speed reducing function, a separate speed regulator or a motor controller is required to control the speed regulating range, the speed is small, the cutting speed is too fast, the cutting part of the Chinese chives is easy to damage, and excessive cutting is caused.

Disclosure of Invention

The utility model provides a cutting head of a leek harvester, which aims to solve the problems in the prior art.

In order to achieve the above purpose, the utility model provides a cutting head of a leek harvester, which comprises a shell, the shell is of a cylindrical barrel structure, the upper end of the shell is provided with a cover body, two side walls of the shell are provided with two mounting openings, one of the two mounting openings is a power input opening, the other is a power balance opening, the lower end of the shell is a cutting force output opening, a first bevel gear is coaxially arranged in the shell, a first output shaft and a second output shaft are coaxially arranged below the first bevel gear in sequence, the first bevel gear is coaxially fixed on the first output shaft, the first output shaft is rotatably arranged on a first mounting plate, the second output shaft is rotatably arranged on a second mounting plate, the lower end of the first output shaft and the upper end of the second output shaft are connected and driven by a speed reducing mechanism, the lower end of the second output shaft downwards extends to the outside of the shell, a second bevel gear and a third bevel gear is coaxially fixed on the upper side of the shell, the first bevel gear and the third bevel gear is coaxially arranged below the second bevel gear and is coaxially meshed with the third bevel gear, the third bevel gear is coaxially arranged on the inner side of the drive shaft, and the inner side of the drive shaft is coaxially arranged on the drive shaft, and the drive shaft is coaxially arranged on the drive shaft is rotatably arranged on the inner side of the drive shaft, and is coaxially arranged on the drive shaft, and is rotatably on the drive shaft.

In the above technical scheme, the reducing mechanism comprises a jackshaft, a first gear, a second gear, a third gear and a fourth gear, wherein the jackshaft is arranged on one side of a first output shaft in parallel, a first bearing mounting hole is formed in the bottom of a first mounting plate, which is right above the jackshaft, a first bearing is arranged in the first bearing mounting hole, the upper end of the jackshaft is rotationally connected through being inserted into the first bearing hole of the first bearing, a second bearing mounting hole is formed in the top of a second mounting plate, which is right below the jackshaft, a second bearing is arranged in the second bearing mounting hole, and the lower end of the jackshaft is rotationally connected through being inserted into the second bearing hole of the second bearing.

In the technical scheme, a first gear and a second gear are coaxially arranged on the intermediate shaft from top to bottom in sequence, a third gear is coaxially fixed at the lower end of the first output shaft, a fourth gear is coaxially fixed at the upper end of the second output shaft, the first gear and the second gear are in three-phase meshing transmission, and the second gear and the fourth gear are in four-phase meshing transmission.

In the technical scheme, the transmission ratio of the first gear to the third gear is 1:3; the transmission ratio of the second gear to the fourth gear is 3:1.

In the technical scheme, the upper end of the transmission shaft is provided with a spline hole.

In the technical scheme, the spline of the spline hole is a six-tooth spline.

In the above technical scheme, the lid middle part of casing sets up lubricated mouth, set up the oiling mouth on the lubricated mouth, the lid with set up sealing washer one between the casing, the second mounting panel with set up sealing washer two between the casing.

In the above technical scheme, the first mounting plate is disc-shaped, and the first mounting plate is coaxially embedded in the shell and is fixed in a positioning manner through the set screw.

In the above technical scheme, the transmission shaft is sleeved with the first oil seal and is in sealing connection with the positioning pipe, and the second output shaft is sleeved with the second oil seal and is in sealing connection with the second mounting plate.

The application provides a cutting head of leek harvester has following beneficial effect:

(1) The first bevel gear, the second bevel gear and the third bevel gear form 120-degree angles with each other to be engaged and driven in a matched mode, the driving force is good in stability, abrasion among gears is reduced, and the service life of parts is prolonged.

(2) The speed of rotation that passes through drive shaft through reducing gear slows down, has reduced output rotational speed, has reduced the rotational speed of cutting saw bit, prevents that the cutting saw bit rotational speed from too fast excessively cutting reduction in output to the leek.

(3) Through set up lubricated mouth at the lid middle part of casing, set up the oiling mouth on lubricated mouth, the lid with set up sealing washer one between the casing, set up sealing washer two between the second mounting panel with set up sealing washer two between the casing, pour into lubricating oil into in the casing through the oiling mouth, make bevel gear, axle submergence transmission in lubricating oil, increased the life of cutting head.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application, illustrate and explain the principles of the utility model. The drawings of the illustrative embodiments of the present application and their descriptions are for the purpose of illustrating the present application and are not to be construed as unduly limiting the present application. In the drawings:

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model.

Fig. 3 is a schematic cross-sectional view of the bearing housing of the present utility model.

In the figure:

1-a housing; 100-cutting saw blade; 101-a power input port; 102-a dynamic balance port; 103-a cutting force output port;

2-a speed reducing mechanism; 21-an intermediate shaft; 22-gear one; 23-gear two; 24-gear three;

3-a first bevel gear;

4-a second bevel gear; 41-bearing seats; 410-bearing sleeve; 411-half axle; 412-bearing three; 414-circlip one; 413-circlip two;

5-a third bevel gear;

6-a first output shaft;

7-a second output shaft;

8-a first mounting plate;

9-a second mounting plate;

10-a cover body;

11-positioning a tube;

12-a transmission shaft; 120-spline holes;

13-a grease nipple;

14-a first sealing ring;

15-a second sealing ring;

16-set screw;

17-oil seal I;

18-oil sealing;

201-bearing one; 202-a second bearing;

Detailed Description

In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application 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.

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to a particular orientation or to be constructed and operated in a particular orientation.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

In addition, the term "plurality" shall mean two as well as more than two.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example 1:

referring to fig. 1-3, this embodiment provides a cutting head of a leek harvester, including a housing 1, the housing 1 is a cylindrical barrel structure, a cover 10 is disposed at an upper end of the housing 1, two mounting ports are disposed at two side walls of the housing 1, one of the two mounting ports is a power input port 101, the other is a power balance port 102, a cutting force output port 103 is disposed at a lower end of the housing 1, a first bevel gear 3 is coaxially disposed in the housing 1, a first output shaft 6 and a second output shaft 7 are coaxially disposed under the first bevel gear 3 in sequence, the first bevel gear 3 is coaxially fixed on the first output shaft 6, the first output shaft 6 is rotatably mounted on a first mounting plate 8, the second output shaft 7 is rotatably mounted on a second mounting plate 9, a lower end of the first output shaft 6 and an upper end of the second output shaft 7 are connected and driven by a speed reduction mechanism 2, the lower end of the second output shaft 7 extends downwards to the outside of the shell 1, the extending end of the lower end of the second output shaft 7 is coaxially fixed with a cutting saw blade 100, the cutting saw blade 100 is fastened by a fastening nut arranged along the axial direction, a second bevel gear 4 and a third bevel gear 5 are respectively arranged on two sides above the first bevel gear 3, the first bevel gear 3 and the second bevel gear 4 and the third bevel gear 5 are respectively in 120-degree intersection angle meshing transmission, the second bevel gear 4 is rotatably arranged on a bearing seat 41 arranged in a power balance port 102, the outer side of the power input port 101 is connected with a positioning pipe 11 which is obliquely arranged upwards, a transmission shaft 12 is coaxially arranged in the positioning pipe 11, the transmission shaft 12 is rotatably arranged in the positioning pipe 11 by a bearing, the lower end of the transmission shaft 12 extends downwards from the power input port 101 to the inside of the shell 1, the lower end extension end of the transmission shaft 12 is coaxially fixed with the third bevel gear 5.

Referring to fig. 3, the bearing seat 41 includes a bearing sleeve 410, a bearing III 412, and a half shaft 411, where the bearing sleeve 410 is obliquely downward disposed in the power balance port 102, the upper end of the bearing sleeve 410 is in sealed welding connection with the power balance port 102, the bearing III 412 is coaxially mounted in the lower port, the bearing III 412 is limited in the bearing sleeve 410 by a first elastic retainer ring 414, the half shaft 411 is coaxially disposed in the bearing sleeve 410, the upper end of the half shaft 411 is sleeved in the inner ring of the bearing III 412 and rotationally connected, and is limited in the axial direction by a second elastic retainer ring 413, and the lower end of the half shaft 411 is in key connection with the second bevel gear 4 and is coaxially and fixedly connected by a locking screw.

In the above embodiment, the first bevel gear 3 is meshed with the second bevel gear 4 and the third bevel gear 5 respectively at an intersecting angle of 120 degrees, so that the mechanical stability of the structure is good, the abrasion of the gears can be reduced, the service life of the gears is prolonged, the lower end of the first output shaft 6 is connected with the upper end of the second output shaft 7 through the speed reducing mechanism 2 for transmission, the rotation speed of the cutting saw blade is reduced, and the cutting saw blade is prevented from excessively cutting and damaging Chinese chives at too high rotation speed.

In the above embodiment, referring to fig. 2, the first bevel gear 3, the second bevel gear 4, the third bevel gear 5 and the shaft are all connected by keys, and the screw fastening is added.

In the above embodiment, referring to fig. 2, the speed reducing mechanism 2 includes a middle shaft 21, a first gear 22, a second gear 23, a third gear 24, and a fourth gear 25, where the middle shaft 21 is disposed on one side of the first output shaft 6 in parallel, a first bearing mounting hole is disposed at the bottom of the first mounting plate 8, which is right above the middle shaft 21, a first bearing 201 is disposed in the first bearing mounting hole, the upper end of the middle shaft 21 is rotationally connected by inserting into the first bearing hole of the first bearing 201, a second bearing mounting hole is disposed at the top of the second mounting plate 9, which is right below the middle shaft 21, a second bearing 202 is disposed in the second bearing mounting hole, and the lower end of the middle shaft 21 is rotationally connected by inserting into the second bearing hole of the second bearing 202.

In the above embodiment, referring to fig. 2, a first gear 22 and a second gear 23 are coaxially disposed on the intermediate shaft 21 from top to bottom in sequence, a third gear 24 is coaxially fixed at the lower end of the first output shaft 6, a fourth gear 25 is coaxially fixed at the upper end of the second output shaft 7, the first gear 22 is meshed with the third gear 24 for transmission, the second gear 23 is meshed with the fourth gear 25 for transmission, and the transmission ratio of the first gear 22 to the third gear 24 is 1:3; the transmission ratio of the second gear 23 to the fourth gear 25 is 3:1, and through the two-stage speed reduction structure, the rotating speed of the cutting saw blade can be effectively reduced, and the cutting saw blade can be prevented from cutting Chinese chives for a plurality of times to damage the Chinese chives.

In the above embodiment, referring to fig. 2, a spline hole 120 is provided at the upper end of the transmission shaft 12, and the spline of the spline hole 120 is a six-tooth internal spline, so that the transmission shaft 12 and an external motor are conveniently connected through a spline flexible shaft.

In the above embodiment, please refer to fig. 2, a lubrication port is provided in the middle of the cover 10 of the housing 1, an oil filling nozzle 13 is provided on the lubrication port, a sealing ring one 14 is provided between the cover 10 and the housing 1, a sealing ring two 15 is provided between the second mounting plate 9 and the housing 1, and through a sealing structure, the lubricating oil filled into the housing 1 is prevented from leaking out, the transmission resistance between bevel gears is reduced, and the service life of each component is prolonged.

In the above embodiment, the first mounting plate 8 is disc-shaped, and the first mounting plate 8 is coaxially embedded in the housing 1 and is fixed by the set screw 16, so that the dismounting and the maintenance are convenient after the parts are damaged.

In the above embodiment, the transmission shaft 12 is sleeved with the first oil seal 17 and is in sealing connection with the positioning tube 11, the second output shaft 7 is sleeved with the second oil seal 18 and is in sealing connection with the second mounting plate 9, and the installation oil seal prevents the lubricating fluid injected into the housing from leaking during the transmission process.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides a cutting head of leek harvester, its characterized in that, includes the casing, the casing is cylindrical barrel structure, the upper end of casing sets up the lid, two installing ports are seted up to the both sides wall of casing, and one of them installing port is the power input port, and another is the power balance mouth, the lower extreme of casing is the cutting force delivery outlet, coaxial first bevel gear that sets up in the casing, first bevel gear below sets up first output shaft, second output shaft in proper order coaxially, first bevel gear coaxial fixation is on first output shaft, first output shaft rotates to be installed on first mounting panel, the second output shaft rotates to be installed on the second mounting panel, first output shaft lower extreme with second output shaft upper end passes through reduction gears and connects the transmission, second output shaft lower extreme downwardly extending is outside the casing, second output shaft lower extreme extends the coaxial fixed cutting saw bit of end, first bevel gear top both sides set up second bevel gear, third bevel gear respectively with second bevel gear, third bevel gear are equal angle is the same bevel gear, the coaxial transmission shaft is installed to the coaxial transmission shaft in the same angle, the coaxial transmission shaft is set up to the coaxial transmission shaft is in the transmission shaft, the coaxial transmission shaft is located the inside the casing, the coaxial transmission shaft is connected to the inside the first bevel gear, the coaxial transmission shaft is set up.

2. The cutting head of the leek harvester as in claim 1, wherein the speed reducing mechanism comprises a first intermediate shaft, a first gear, a second gear, a third gear and a fourth gear, the intermediate shaft is arranged on one side of the first output shaft in parallel, a first bearing mounting hole is formed in the bottom of the first mounting plate, which is right aligned with the upper end of the intermediate shaft, a first bearing is arranged in the first bearing mounting hole, the upper end of the intermediate shaft is connected in a rotating manner by inserting the first bearing hole of the first bearing, a second bearing mounting hole is formed in the top of the second mounting plate, which is right aligned with the lower end of the intermediate shaft, a second bearing is arranged in the second bearing mounting hole, and the lower end of the intermediate shaft is connected in a rotating manner by inserting the second bearing hole of the second bearing.

3. The cutting head of the leek harvester as set forth in claim 2, wherein a first gear and a second gear are coaxially arranged on the intermediate shaft from top to bottom in sequence, the third gear is coaxially fixed at the lower end of the first output shaft, the fourth gear is coaxially fixed at the upper end of the second output shaft, the first gear is meshed with the third gear for transmission, and the second gear is meshed with the fourth gear for transmission.

4. A cutting head of a leek harvester as in claim 3 wherein the ratio of gear one to gear three is 1:3; the transmission ratio of the second gear to the fourth gear is 3:1.

5. The cutting head of a leek harvester as in claim 2, wherein the upper end of the drive shaft is provided with splined openings.

6. The cutting head of a leek harvester as in claim 5 wherein the spline of the splined hole is a six tooth spline.

7. The cutting head of a leek harvester as in claim 1, wherein a lubrication port is provided in the middle of the cover of the housing, a grease nipple is provided on the lubrication port, a first sealing ring is provided between the cover and the housing, and a second sealing ring is provided between the second mounting plate and the housing.

8. The cutting head of a leek harvester as in claim 1 wherein the first mounting plate is disc shaped and is coaxially embedded within the housing and secured therein by a set screw.

9. The cutting head of a leek harvester as in claim 1, wherein said drive shaft is provided with a seal in sealing engagement with said positioning tube, and said second output shaft is provided with a seal in sealing engagement with said second mounting plate.