CN220255138U - Cutter for harvesting flowers and leaves - Google Patents

Abstract

A cutter for harvesting flowers and leaves, belonging to agricultural machinery; the opening type shell is axially movably arranged on the device seat through a supporting shaft, a pressure spring is arranged at a position between the device seat and the opening type shell, a double-saw blade cutter set is rotatably arranged in the opening type shell, a power motor fixedly arranged at the outer central position of the upper end of the opening type shell is connected with the double-saw blade cutter set, an I shaft and an II shaft are mutually parallel and rotatably arranged at the position of the opening end side of the opening type shell, a driving cylindrical gear is arranged at the end part of the I shaft through a one-way bearing, two torsion springs are sleeved on the I shaft, a seat plate is fixedly arranged on the I shaft, the end part of the same side of the two torsion springs is fixedly arranged with the seat plate, a rotating sleeve is connected at the position between the other sides of the two torsion springs, a buffer frame is fixedly arranged on the seat plate, and a driven cylindrical gear and a three-boss uniformly-distributed cam are fixedly arranged on the II shaft; the machine has high cutting operation efficiency, strong adaptability, low failure rate and long service life, and provides technical support for mechanical harvesting operation of flowers and leaves.

Description

Cutter for harvesting flowers and leaves

Technical Field

The utility model belongs to agricultural machinery, and mainly relates to a cutter used for harvesting flowers and leaves.

Background

The cutter is a core working component used for the field harvesting operation of crops, and influences and determines the cutting quality and effect of crop stalks. At present, the crop stalk cutting device mainly comprises a movable knife rack reciprocating cutter and a sawtooth disc rotary cutter. The movable knife rack reciprocating cutter is suitable for cutting close-planted crops such as paddy rice, wheat, soybean and the like in flat-planting or ridge-planting, and the sawtooth disc rotary cutter is suitable for cutting high-stalk crops such as corn, sorghum, sugarcane and the like with relatively loose stalk quality.

The hemp used for flowers and leaves is a ridge crop which is planted with plant spacing of more than 0.8 meter, plant height of 1.7-2 meters when mature, plant root trunk diameter of 5-7 cm and lignified. The existing movable knife rack reciprocating cutter can not bear and complete the cutting operation of the hemp plants for flowers and leaves at all, but the existing sawtooth disc rotary cutter can not realize instantaneous cutting of the trunks of the hemp plants for flowers and leaves with high hardness and lignification in the cutting operation process, and the cutting operation process can be blocked by discontinuous impact and hysteresis of the hemp plants for flowers and leaves, so that the whole sawtooth disc cutter is deformed or broken teeth, and the harvesting operation can not be continuously and normally carried out.

Based on the fact that the existing cutter cannot meet the harvesting requirements of the hemp plants for flowers and leaves, the current harvesting operation of the hemp plants for flowers and leaves is carried out in a manual hand-held electric saw mode, the problems of high labor intensity, low efficiency, severe operation environment, high operation cost and the like exist seriously, and the development of the hemp industry for flowers and leaves is restricted.

Disclosure of Invention

The utility model aims at solving the problems in the prior art, combines the practical requirements on the use of the flower-leaf hemp harvesting operation, researches and designs the flower-leaf hemp harvesting operation cutter, achieves the purposes of adapting to and meeting the use requirements of the flower-leaf hemp harvesting operation, has simple structure, high operation efficiency, fewer faults and low use cost, and achieves the purpose of providing technical support for the mechanical harvesting of the flower-leaf hemp.

The aim of the utility model is realized in the following way: two support shafts are inserted and installed on a device seat in parallel and capable of moving axially, a notch type shell is fixedly installed on the outer end parts of the two support shafts, a pressure spring is installed on the device seat in a matched mode at the middle position of the two support shafts, two end faces of the pressure spring are respectively in extrusion contact fit with the device seat and the notch type shell, a double-saw blade cutter set is rotatably installed in the notch type shell, a power motor is fixedly installed on the central part outside the upper end of the notch type shell, the power motor is connected with the double-saw blade cutter set, an I shaft and an II shaft are installed on the notch type shell in parallel and rotatable mode at the side part of the notch end, a driving cylindrical gear is installed on the end part of the I shaft in a unidirectional relative rotation mode through a unidirectional bearing, the seat board is fixedly arranged on the I shaft, two torsional springs with symmetrical shapes are sleeved on the I shaft respectively, the end parts of the same side of the two torsional springs are fixedly arranged with the seat board, the parts between the end parts of the other sides of the two torsional springs are sleeved with rotating sleeves which are connected with each other, a buffer frame is fixedly arranged on the seat board, the buffer frame and a double-saw blade knife set are in overlapped insertion fit or are separated from overlapped insertion fit, a driven cylindrical gear and three-boss uniformly distributed cams are sequentially fixedly arranged on the II shaft, the driven cylindrical gear is meshed with the driving cylindrical gear, the transmission ratio between the driving cylindrical gear and the driven cylindrical gear is 1:3, and the rotating sleeves are in close contact fit with the three-boss uniformly distributed cams, so that the cutter for harvesting the flowers and the leaves is formed.

The utility model adopts a mechanism combining the whole shock absorption and vibration absorption of the cutter and the protection and vibration absorption of the double-saw blade cutter set, avoids and eliminates the deformation and broken teeth damage of the cutter body caused by the strong impact of the hemp stems for flowers and leaves when the double-saw blade cutter set cuts the hemp stems for flowers and leaves, prolongs the cutting contact time of the double-saw blade cutter set and the hemp stems for flowers and leaves in the whole shock absorption and vibration absorption process of the cutter, solves the problem of hysteresis obstruction caused by the fact that the traditional sawtooth disc rotary cutter cannot cut the trunk of the hemp plants for flowers and leaves with high hardness and lignification in the cutting operation process, reliably and effectively protects the use safety of the double-saw blade cutter set, has the characteristics of novel and unique structure, simplicity, rationality, strong adaptability, high cutting operation efficiency, good operation use safety and low failure rate, and provides technical support for the mechanical harvesting operation for the hemp for flowers and leaves.

Drawings

Fig. 1 is a schematic view of the overall structure of a cutter for harvesting flowers and leaves.

FIG. 2 is a schematic diagram of the assembly structure of the I-axis and one-way bearing, driving cylindrical gear, torsion spring, seat plate, buffer frame and rotating sleeve.

Fig. 3 is a schematic diagram of an assembly structure of a shaft II and a driven cylindrical gear, and three-boss uniformly distributed cams.

Fig. 4 is a schematic diagram of a three-boss uniformly distributed cam structure.

Fig. 5 is a schematic diagram of the mutual positions of the cam and the rotating sleeve uniformly distributed by three bosses at the initial position of the buffer frame.

Fig. 6 is a schematic diagram of the mutual positions of the three-boss uniformly distributed cam and the rotating sleeve when the buffer frame rotates by 13.5 degrees.

FIG. 7 is a schematic illustration of the relative positions of the cam and the rotor sleeve with three bosses uniformly distributed when the buffer frame rotates approximately 40 degrees.

In the figure, the part number is 1, a device seat 2, a pressure spring 3, a notch type shell 4, a double-saw blade cutter set 5, a buffer frame 6, a seat plate 7, a torsion spring 8, a cam 9 uniformly distributed on three bosses, an I shaft 10, an II shaft 11, a driven cylindrical gear 12, a driving cylindrical gear 13, a power motor 14, a supporting shaft 15, a rotating sleeve 16 and a one-way bearing.

Detailed Description

The following describes the inventive embodiments in detail with reference to the drawings.

A cutter for harvesting flowers and leaves is characterized in that two supporting shafts 14 are inserted and mounted on a cutter seat 1 in parallel and capable of axially moving, a notch type shell 3 is fixedly mounted on the outer end parts of the two supporting shafts 14, a pressure spring 2 is mounted on the cutter seat 1 in a matched mode at the middle position of the two supporting shafts 14, two end faces of the pressure spring 2 are respectively in extrusion contact fit with the cutter seat 1 and the notch type shell 3, a double-saw blade cutter set 4 is rotatably mounted in the notch type shell 3, a power motor 13 is fixedly mounted on the central part outside the upper end of the notch type shell 3, the power motor 13 is connected with the double-saw blade cutter set 4, an I shaft 9 and an II shaft 10 are rotatably mounted on the notch type shell 3 in parallel and capable of being rotatably mounted on the side parts of the notch type shell 3, a driving cylindrical gear 12 is rotatably mounted on the end parts of the I shaft 9 in a one-way through a one-way bearing 16, the seat board 6 is fixedly arranged on the I shaft 9, two torsional springs 7 with symmetrical shapes are respectively sleeved on the I shaft 9 with a clearance between the two torsional springs 7, the end parts of the same side of the two torsional springs 7 are fixedly arranged with the seat board 6, the parts between the other sides of the two torsional springs 7 are mutually connected with sleeved rotary sleeves 15, the buffer frame 5 is fixedly arranged on the seat board 6, the buffer frame 5 and the double saw blade cutter group 4 are in overlapped insertion fit or separated from overlapped insertion fit, the II shaft 10 is sequentially fixedly provided with a driven cylindrical gear 11 and a three-boss uniform cam 8, the driven cylindrical gear 11 is meshed with a driving cylindrical gear 12, the transmission ratio between the driving cylindrical gear 12 and the driven cylindrical gear 11 is 1:3, and the rotary sleeves 15 are in close contact fit with the three-boss uniform cam 8. The power motor 13 includes an electric motor, a hydraulic motor, and an air motor.

When the cutter is used, the cutter is integrally arranged on a cutting table of a hemp harvester for flowers and leaves through the cutter seat 1, a random moves forwards, the power motor 13 is started, the rotary power of the power motor 13 drives the double-saw blade cutter set 4 to rotate in the opening type shell 3, when the stems of the hemp plants for flowers and leaves standing in the field strike and touch the buffer frame 5, the impact force of the stems of the hemp plants for flowers and leaves on the cutter is respectively digested and absorbed by the pressure spring 2 and the torsion spring 7 through the buffer frame 5, the impact force absorbed by the torsion spring 7 drives the I shaft 9 and the driving cylindrical gear 12 to rotate circumferentially through the seat plate 6, the buffer frame 5 and the double-saw blade cutter set 4 enter into an overlapped fit from an initial position in the circumferential rotation process of the I shaft 9 and the driving cylindrical gear 12, at this moment, the double-saw blade cutter set 4 contacts with the stems of the hemp plants for flowers and leaves at the opening type shell 3 to cut, the driven cylindrical gear 11 rotates, the II shaft 10 drives the three bosses 8 to rotate and the three bosses 8 to be in contact with the torsion spring 7 uniformly distributed, and the torsion spring 7 is released when the three bosses 8 are contacted with the three bosses 8 and the torsion spring 7 are uniformly distributed, and the resistance of the two bosses 7 is reduced; the flowers and leaves in cutting push the buffer frame 5 to drive the I shaft 9 and the driving cylindrical gear 12 to continue to rotate circumferentially to 40 degrees, the driving cylindrical gear 12 drives the driven cylindrical gear 11 and the II shaft to rotate, the II shaft 10 drives the three-boss uniformly-distributed cam 8 to rotate to 120 degrees, the rotating sleeve 15 gradually moves to the table top from the table bottom of the three-boss uniformly-distributed cam 8, the torsion spring 7 gradually stores force from a free state to a torsion maximum state, and in synchronization with the state, the double-saw blade knife set 4 completes cutting of the flowers and leaves with the stems of the hemp plants, under the torsion effect of the torsion spring 7, the buffer frame 5 rapidly rotates reversely, the flowers and leaves cut by the double-saw blade knife set 4 are pushed out by the hemp plant sections and simultaneously return to an initial position by inserting overlapping cooperation, and then cutting preparation for the next flowers and leaves with hemp plants is sequentially circulated. The impact force absorbed by the pressure spring 2 reduces the contact and cutting speed of the double-saw blade knife set 4 and the hemp plants for flowers and leaves by compressing the pressure spring 2, achieves the aim of protecting the double-saw blade knife set 4, and ensures smooth cutting of the hemp plants for flowers and leaves when the hemp plants for flowers and leaves with larger diameter and serious lignification degree are encountered, the cutting resistance of the hemp plants for flowers and leaves can also compress the pressure spring 2 to reduce the cutting speed of the double-saw blade knife set 4, thereby prolonging the cutting time in real time.

Claims (2)

1. The utility model provides a flower leaf is with hemp operation cutterbar which characterized in that: two support shafts (14) are inserted and installed on the device seat (1) in parallel and capable of axially moving, the opening type shell (3) is fixedly installed on the outer end parts of the two support shafts (14), a pressure spring (2) is installed on the device seat (1) in the middle of the two support shafts (14), two end faces of the pressure spring (2) are respectively matched with the device seat (1) and the opening type shell (3) in a pressing contact manner, a double-saw blade knife set (4) is rotatably installed in the opening type shell (3), a power motor (13) is fixedly installed on the central part outside the upper end of the opening type shell (3), the power motor (13) is connected with the double-saw blade knife set (4), an I shaft (9) and an II shaft (10) are mutually parallel and rotatably installed on the opening type shell (3) at the side part of the opening type, a driving cylindrical gear (12) is installed on the end part of the I shaft (9) in a one-way relatively rotating manner through a one-way bearing (16), two torsion springs (7) are fixedly installed on the opening type shell (3) in the middle of the opening type shell (3), two side parts of the two shafts (7) are respectively sleeved on the two side parts of the torsion spring (7) in a mutual side (7) in a mutual mode, the two side parts of the torsion spring (7) are respectively sleeved on the two side parts (7) are respectively, the buffer frame (5) is fixedly arranged on the seat board (6), the buffer frame (5) is in overlapped insertion fit or separated from overlapped insertion fit with the double-saw blade knife tackle (4), the driven cylindrical gear (11) and the three-boss uniformly distributed cams (8) are sequentially fixedly arranged on the II shaft (10), the driven cylindrical gear (11) is meshed with the driving cylindrical gear (12), the transmission ratio between the driving cylindrical gear (12) and the driven cylindrical gear (11) is 1:3, and the rotating sleeve (15) is in close contact fit with the three-boss uniformly distributed cams (8).

2. A hemp harvesting cutter for flowers and leaves as claimed in claim 1, wherein: the power motor (13) comprises an electric motor, a hydraulic motor and an air motor.