CN109127039B - Green grass feed cutting method - Google Patents

Abstract

The invention discloses a green grass feed cutting method, which adopts a green grass feed cutting machine and comprises the following steps: s1, conveying the forage to the first cutting chamber by a feeding device of the grass forage cutting machine; s2, cutting the forage for the first time by a first cutting device of the grass forage cutting machine; and S3, cutting the forage for the second time by a second cutting device of the grass and forage cutting machine. According to the green grass feed cutting method, the green grass feed cutting machine is adopted, automatic feeding can be achieved, and safety and production efficiency of green grass cutting are improved; the green grass feed cutting is divided into multiple cutting, the feed cut for the first time is rough machining, the feed cut for the second time is fine machining, and the rough-fine step machining can not only prolong the service life of a cutting tool, but also improve the fineness of the processed feed.

Description

Green grass feed cutting method

Technical Field

The invention belongs to the technical field of agricultural mechanical equipment, and particularly relates to a green grass feed cutting method.

Background

In recent years, due to the continuous importance of the state on the mechanization of agricultural production, various agricultural machinery subsidy policies are also successively released, and the continuous development of the mechanization of agricultural production in China is promoted. Meanwhile, the corresponding agricultural machinery equipment is developed very quickly, along with the continuous progress of science and technology, the research and development and the production of the agricultural machinery equipment are also developed quickly, the variety of agricultural machinery is increased day by day, and the technological content and the quality of the agricultural machinery are also improved continuously. However, due to the thought influence of heavy industry and light agriculture for a long time, compared with industrial production mechanization, the production scale of agricultural machinery equipment is small, the technological content of products is relatively low, the structure of the agricultural machinery equipment is unreasonable, and the application and popularization of new technology and new equipment cannot be kept up with. Meanwhile, the agricultural machinery equipment is manufactured only in a primary production stage, enterprises lack independent innovation capability, latest scientific technology cannot be applied to production and research and development of the agricultural machinery equipment, and the agricultural machinery equipment cannot meet the requirement of rapid agricultural development at present.

The cutting mode of the existing green fodder cutting machine for cutting green fodder is a mode of cutting while feeding, thus easily resulting in unsafety of processing, low processing efficiency and higher cost. In addition, the existing green grass feed is cut into one-time processing and cutting, so that the processed feed is not fine, and the application range of the cut feed is limited.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a green grass feed cutting method, and aims to improve the cutting efficiency of green grass.

In order to achieve the purpose, the invention adopts the technical scheme that: the green grass feed cutting method adopts a green grass feed cutting machine and comprises the following steps:

s1, conveying the forage to the first cutting chamber by a feeding device of the grass forage cutting machine;

s2, cutting the forage for the first time by a first cutting device of the grass forage cutting machine;

s3, cutting the forage for the second time by a second cutting device of the grass forage cutting machine;

wherein, the grass fodder cutting machine still includes the second cutting room that is located first cutting room below, and first cutting device sets up in first cutting room, and the second cutting device sets up in the second cutting room.

The first cutting device comprises an upper cutter disc which can be rotatably arranged and upper cutters which are arranged on the upper cutter disc, the upper cutters are arranged in a plurality and are uniformly distributed on the upper cutter disc along the circumferential direction, and the rotating center line of the upper cutter disc is positioned in the horizontal plane; in step S2, the upper cutter is used to cut the forage exposed from the feeding device, and cut the forage into pieces.

The second cutting device comprises a first lower cutter disc and a second lower cutter disc which are rotatably arranged, a first lower cutter arranged on the first lower cutter disc and a second lower cutter arranged on the second lower cutter disc, the first lower cutter disc and the second lower cutter disc are oppositely arranged, the rotating center line of the first lower cutter disc is parallel to the rotating center line of the second lower cutter disc, and a cutting channel for grass to pass through is arranged between the first lower cutter disc and the second lower cutter disc; in step S3, the first lower cutter and the second lower cutter cooperate to perform a second cutting operation on the forage falling into the cutting channel.

When the first lower cutters and the second lower cutters rotate into the cutting channel and at least two first lower cutters and two second lower cutters rotate into the cutting channel, each first lower cutter is adjacent to one second lower cutter, and the first lower cutters and the second lower cutters are located on the same straight line parallel to the rotating center line of the first lower cutter disc.

The first lower cutters are uniformly arranged on the first lower cutter disc in a plurality of circles along the axial direction, and all the first lower cutters of each circle are uniformly distributed on the first lower cutter disc along the whole circumferential direction; the second lower cutters are uniformly arranged on the second lower cutter disc in a plurality of circles along the axial direction, all the second lower cutters of each circle are uniformly distributed on the second lower cutter disc along the whole circumferential direction, and the number of the first lower cutters is the same as that of the second lower cutters.

In step S1, material feeding unit carries the forage that is located feed inlet department downwards to first cutting device department, material feeding unit include rotatable and for the upper roll pinch roller that floats the setting, be located the lower roll pinch roller of upper roll pinch roller below and be used for exerting the elastic component of elastic force to the upper roll pinch roller, for the pay-off passageway that lets the forage pass through between upper roll pinch roller and the lower roll pinch roller, first cutting device cuts the forage that exposes from the pay-off passageway.

The feeding device further comprises a first feeding transmission mechanism, a second feeding transmission mechanism and a third feeding transmission mechanism which are sequentially connected, the upper roller is connected with the upper roller shaft, and the upper roller shaft is connected with the third feeding transmission mechanism.

The first feeding transmission mechanism is a bevel gear mechanism, the second feeding transmission mechanism is a cylindrical gear mechanism, and the third feeding transmission mechanism is a belt transmission mechanism.

The first cutting chamber is provided with a guide groove in which the upper roller is embedded, and the guide groove is an arc-shaped groove.

According to the green grass feed cutting method, the green grass feed cutting machine is adopted, automatic feeding can be achieved, and safety and production efficiency of green grass cutting are improved; the green grass feed cutting is divided into multiple cutting, the feed cut for the first time is rough machining, the feed cut for the second time is fine machining, and the rough-fine step machining can not only prolong the service life of a cutting tool, but also improve the fineness of the processed feed.

Drawings

The description includes the following figures, the contents shown are respectively:

FIG. 1 is a schematic view of a grass cutter used in the present invention;

FIG. 2 is a schematic view of a first cutting device;

FIG. 3 is a front view of the second cutting device;

FIG. 4 is a top view of the second cutting device;

FIG. 5 is a schematic structural view of a cutter head transmission mechanism;

FIG. 6 is a schematic view of the feed apparatus;

FIG. 7 is a schematic view showing the position switching of the upper roller;

labeled as: 1. an electric motor; 2. a wheel; 3. a frame; 4. a first cutting device; 401. feeding a cutter head; 402. an upper cutter; 5. a second cutting device; 501. a first lower cutter head; 502. a first lower cutter; 503. a second lower cutter head; 504. a second lower cutter; 505. a driving gear; 506. a first driven gear; 507. a second driven gear; 6. a feeding device; 601. an upper roll pinch roller; 602. a lower roller pressing wheel; 603. an upper roll shaft; 604. a lower roll shaft; 605. an elastic element; 606. a first feeding transmission mechanism; 607. a second feeding transmission mechanism; 608. a third feeding transmission mechanism; 609. a first drive shaft; 610. a second drive shaft; 7. a first cutting chamber; 8. a second cutting chamber; 9. a first transmission mechanism; 10. a second transmission mechanism; 11. a guide groove.

Detailed Description

The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.

The invention provides a green grass feed cutting method, which adopts a green grass feed cutting machine, as shown in fig. 1 to 5, the green grass feed cutting machine comprises a frame 3, a power device, a first cutting chamber 7, a first cutting device 4 which is rotatably arranged in the first cutting chamber 7 and is used for cutting grass for the first time, a feeding device 6 which is used for conveying the grass into the first cutting chamber 7, a second cutting chamber 8 and a second cutting device 5 which is arranged in the second cutting chamber 8 and is used for cutting the grass for the second time, wherein the second cutting chamber 8 is positioned below the first cutting chamber 7.

The cutting method of the green grass feed comprises the following steps:

s1, conveying the forage to a first cutting chamber 7 by a feeding device 6 of the grass forage cutting machine;

s2, cutting the forage for the first time by a first cutting device 4 of the grass forage cutting machine;

and S3, cutting the forage for the second time by the second cutting device 5 of the grass and forage cutting machine.

Specifically, as shown in fig. 1, the frame 3 is a base for mounting other components, and the power unit for providing a driving force for operating the first cutting unit 4, the second cutting unit 5, and the feeding unit 6, the first cutting chamber 7, and the second cutting chamber 8 are mounted on the frame 3. The first cutting chamber 7 is of a structure which is provided with openings at the top and the bottom and is hollow inside, the first cutting device 4 and the feeding device 6 are arranged in the inner cavity of the first cutting chamber 7, and the inner cavity of the first cutting chamber 7 is also used for containing the fine crushed forage formed after the first cutting. Second cutting chamber 8 is open-top and inside hollow structure, second cutting device 5 sets up in the interior cavity of second cutting chamber 8, the interior cavity of second cutting chamber 8 also is arranged in holding the forage that drops downwards from first cutting chamber 7 and the forage that finely cuts that forms after the second time cutting, second cutting device 5 carries out the second time cutting to the forage that gets into in the second cutting chamber 8, make the forage cutting, smash more thoroughly, improve the cutting effect and the cutting efficiency of forage. The bottom opening of the first cutting chamber 7 is opposite to the top opening of the second cutting chamber 8, the inner cavity of the first cutting chamber 7 is communicated with the inner cavity of the second cutting chamber 8, fine-crushed forage formed after the first cutting falls downwards into the second cutting chamber 8, and then the second cutting device 5 performs the second cutting.

As shown in fig. 1 and 2, the first cutting device 4 includes an upper cutter disc 401 which is rotatably disposed and an upper cutter 402 which is disposed on the upper cutter disc 401, the upper cutter 402 is disposed in plurality and all the upper cutters 402 are uniformly distributed on the upper cutter disc 401 along the circumferential direction, the rotation center line of the upper cutter disc 401 is located in the horizontal plane, and the rotation center line of the upper cutter disc 401 is parallel to the first direction. In step S2, the upper cutter 402 is used to cut the forage exposed from the feeding device 6, so as to cut the forage. The power device is used for providing a driving force for rotating the upper cutter disc 401, the power device is connected with the upper cutter disc 401, and the upper cutter 402 is used for cutting forage exposed from the feeding device 6 and chopping the forage. The upper cutter 402 has a certain length, the upper cutter 402 extends out towards the outer side of the upper cutter 401, one end of the upper cutter 402 in the length direction is fixedly connected with the upper cutter 401, and the other end of the upper cutter 402 in the length direction is positioned on the outer side of the upper cutter 401. The upper cutter 402 has a sharp edge portion for cutting forage, the upper cutter 402 is of an arc-shaped structure as a whole, an axis of the upper cutter 402 is parallel to a first direction, the first direction is a horizontal direction, correspondingly, the edge portion of the upper cutter 402 is also of an arc shape, the edge portion of the upper cutter 402 extends from one end of the upper cutter 402 to the other end, and the upper cutter 402 has a wide cutting range and a good cutting effect.

As shown in fig. 2, in the present embodiment, two upper cutters 402 are provided, and an included angle between the two upper cutters 402 is 180 degrees.

As shown in fig. 1, 3 and 4, the second cutting device 5 includes a first lower cutter disc 501 and a second lower cutter disc 503 which are rotatably disposed, a first lower cutter 502 which is disposed on the first lower cutter disc 501, and a second lower cutter 504 which is disposed on the second lower cutter disc 503, the first lower cutter disc 501 and the second lower cutter disc 503 are disposed oppositely, a rotation center line of the first lower cutter disc 501 is parallel to a rotation center line of the second lower cutter disc 503, a cutting channel for allowing the forage to pass is disposed between the first lower cutter disc 501 and the second lower cutter disc 503, and the first lower cutter 502 and the second lower cutter 504 are matched to cut the forage which falls into the cutting channel for the second time, so as to further cut the forage. The rotation center lines of the first and second lower cutter discs 501, 503 are located in a horizontal plane and parallel to a first direction, the rotation direction of the first lower cutter disc 501 is opposite to the rotation direction of the second lower cutter disc 503, and the power unit is configured to provide a driving force for rotating the first and second lower cutter discs 501, 503. The first lower cutter disc 501 and the second lower cutter disc 503 are positioned on the same straight line parallel to the second direction, the second direction is the horizontal direction, the second direction is perpendicular to the first direction, the height of the rotation center line of the first lower cutter disc 501 is the same as that of the rotation center line of the second lower cutter disc 503, the diameter of the first lower cutter disc 501 is the same as that of the second lower cutter disc 503, a gap is formed between the outer circular surface of the first lower cutter disc 501 and the outer circular surface of the second lower cutter disc 503, and the gap forms a cutting channel for receiving forage falling from the first cutting chamber 7 above. In step S3, the first lower cutter 502 and the second lower cutter 504 cooperate to perform a second cutting operation on the forage falling into the cutting path. The first lower cutter 502 has a certain length, the first lower cutter 502 extends out toward the outer side of the first lower cutter 501, one end of the first lower cutter 502 in the length direction is fixedly connected with the first lower cutter 501, the other end of the first lower cutter 502 in the length direction is located on the outer side of the first lower cutter 501, and the first lower cutter 502 and the first lower cutter 501 rotate synchronously. The second lower cutter 504 has a certain length, the second lower cutter 504 extends out towards the outer side of the second lower cutter 503, one end of the second lower cutter 504 in the length direction is fixedly connected with the second lower cutter 503, the other end of the second lower cutter 504 in the length direction is located on the outer side of the second lower cutter 503, the second lower cutter 504 and the second lower cutter 503 rotate synchronously, and the rotation direction of the second lower cutter 504 is opposite to the rotation direction of the first lower cutter 502. The first lower cutter 502 and the second lower cutter 504 each have a sharp edge portion for cutting the fodder. When the edge of the first lower cutter 502 contacts with the edge of the adjacent second lower cutter 504, the forage can be further cut up in the cutting channel, and this way has good cutting effect and high cutting efficiency, and forms more finely-divided forage.

As shown in fig. 1, 3 and 4, the first lower cutters 502 are uniformly arranged on the first lower cutter disc 501 in a plurality of circles along the axial direction, and all the first lower cutters 502 of each circle are uniformly distributed on the first lower cutter disc 501 along the whole circumferential direction; in the axial direction of the first lower cutter disc 501, the distance between every two adjacent first lower cutters 502 is the same, all the first lower cutters 502 in the axial direction of the first lower cutter disc 501 are distributed at equal intervals, the distance between every two adjacent first lower cutters 502 in the axial direction is the same as the thickness of the second lower cutter 504, and the second lower cutter 504 can be inserted between every two adjacent first lower cutters 502 in the axial direction. The second lower cutters 504 are uniformly arranged on the second lower cutter head 503 in a plurality of circles along the axial direction, and all the second lower cutters 504 of each circle are uniformly distributed on the second lower cutter head 503 along the whole circumferential direction; in the axial direction of the second lower cutter disc 503, the distance between every two adjacent second lower cutters 504 is the same, all the second lower cutters 504 in the axial direction of the second lower cutter disc 503 are distributed at equal intervals, the distance between every two adjacent second lower cutters 504 in the axial direction is the same as the thickness of the first lower cutter 502, and the first lower cutter 502 can be inserted between every two adjacent second lower cutters 504 in the axial direction. The number of the first lower cutters 502 is the same as that of the second lower cutters 504, and each first lower cutter 502 is matched with the second lower cutters 504 on one side or two sides respectively to cut the forage. When the first lower cutter 502 and the second lower cutter 504 rotate into the cutting passage and at least two first lower cutters 502 and two second lower cutters 504 rotate into the cutting passage, each first lower cutter 502 is adjacent to one second lower cutter 504, the first lower cutters 502 and the second lower cutters 504 are located on the same straight line parallel to the rotation center line of the first lower cutter disc 501, and the length directions of the first lower cutters 502 and the second lower cutters 504 in the cutting passage are parallel to the second direction. The first lower cutter 502 and the second lower cutter 504 are arranged in this way, the number of the lower cutters is large, the arrangement is compact, the gap between the adjacent lower cutters is small, the forage can be cut more finely, and the cutting effect is further improved. Because the cutters on the cutter disc are uniformly distributed, and the matching distances between the cutters are equal, the cut feed is more uniform.

As shown in fig. 1, 3 and 4, in the present embodiment, the first lower cutters 502 are uniformly arranged on the first lower cutter disc 501 in four circles along the axial direction, three first lower cutters 502 are arranged in each circle, and all the first lower cutters 502 in each circle are uniformly distributed on the first lower cutter disc 501 along the entire circumferential direction. The second lower cutters 504 are uniformly arranged on the second lower cutter 503 in four circles along the axial direction, each circle is provided with three second lower cutters 504, and all the second lower cutters 504 of each circle are uniformly distributed on the second lower cutter 503 along the whole circumferential direction.

As shown in fig. 1 and 3 to 5, the first cutting device 4 further includes a cutter head transmission mechanism for transmitting the driving force generated by the power device to the first lower cutter head 501 and the second lower cutter head 503, the cutter head transmission mechanism includes a driving gear 505 connected to the power device, a first driven gear 506 engaged with the driving gear 505, and a second driven gear 507 engaged with the first driven gear 506, the first driven gear 506 is coaxially and fixedly connected to the first lower cutter head 501, the first driven gear 506 rotates synchronously with the first lower cutter head 501, the second driven gear 507 is coaxially and fixedly connected to the second lower cutter head 503, the second driven gear 507 rotates synchronously with the second lower cutter head 503, the first driven gear 506 is located between the driving gear 505 and the second driven gear 507, the driving gear 505, the first driven gear 506 and the second driven gear 507 are cylindrical gears, the rotation directions of the first driven gear 506 and the second driven gear 507 are opposite, and the first driven gear 506 and the second driven gear 507 are opposite The moving gears 507 have the same diameter.

The top of the first cutting chamber 7 is provided with a feed hopper (not shown in the figure) for placing forage to be cut, the feed hopper is provided with a feed inlet right facing the feeding device 6, the feeding device 6 conveys the forage positioned at the feed inlet downwards to the first cutting device 4, automatic feeding is realized, and the cutting efficiency is improved. In step S1, the feeding device 6 conveys the forage at the feeding port downward to the first cutting device 4, and the first cutting device 4 cuts the forage exposed from the feeding path. As shown in fig. 1, 6 and 7, the feeding device 6 includes an upper roller 601 that is rotatable and provided for floating, a lower roller 602 located below the upper roller 601, and an elastic element 605 for applying an elastic force to the upper roller 601, a feeding channel for allowing forage to pass through is provided between the upper roller 601 and the lower roller 602, and the first cutting device 4 cuts the forage exposed from the feeding channel. A certain gap is formed between the upper roller 601 and the lower roller 602, and the gap forms a feeding channel for accommodating forage. The upper roller 601 and the lower roller 602 are rotatably arranged in the first cutting chamber 7, the upper roller 601 and the lower roller 602 are positioned on the same side of the upper cutter 402, the upper cutter 402 can rotate to be positioned on the same straight line parallel to the first direction with the feeding channel, and the forage exposed from the feeding channel can be cut. The upper roller 601 and the lower roller 602 are in contact with forage, and the forage in the feed hopper is pushed to the feeding channel by the upper roller 601 through the rotation of the upper roller 601, and is pushed out outwards by the forage entering the feeding channel. With the continuous rotation of the upper cutter disc 401 and the upper rolling wheel 601, forage is exposed in the feeding channel, and the upper cutter 402 on the upper cutter disc 401 continuously rotates to the feeding channel and cuts the exposed forage to complete the first cutting of the forage.

As shown in fig. 1, 6 and 7, the feeding device 6 further includes a first feeding transmission mechanism 606, a second feeding transmission mechanism 607 and a third feeding transmission mechanism 608 which are connected in sequence, the upper roller 601 is connected with the upper roller shaft 603, and the upper roller shaft 603 is connected with the third feeding transmission mechanism 608. The upper roller 601 is of a cylindrical structure, the upper roller 601 is sleeved on the upper roller shaft 603, the upper roller 601 and the upper roller shaft 603 are coaxially and fixedly connected, the upper roller shaft 603 extends out of two ends of the upper roller 601, and the first cutting chamber 7 supports the upper roller shaft 603. The length of lower roll wheel 602 is the same with the length size of last roll wheel 601, lower roll wheel 602 is connected with lower roll shaft 604, lower roll wheel 602 is cylindrical structure, lower roll wheel 602 cover is located on lower roll shaft 604 and lower roll wheel 602 is coaxial fixed connection with lower roll shaft 604, lower roll shaft 604 parallels with last roll shaft 603 and lower roll shaft 604 is located the below of roll shaft 603, lower roll shaft 604 stretches out from the both ends of lower roll wheel 602, first cutting chamber 7 provides the supporting role to lower roll shaft 604. Preferably, the first feeding transmission mechanism 606 is a bevel gear mechanism, the second feeding transmission mechanism 607 is a cylindrical gear mechanism, and the third feeding transmission mechanism 608 is a belt transmission mechanism. The first feeding transmission mechanism 606 is connected with the second feeding transmission mechanism 607 through a first transmission shaft 609, the first feeding transmission mechanism 606 is composed of two bevel gears which are meshed with each other, one bevel gear is installed on the power output end of the power device, the other bevel gear is installed on the first transmission shaft 609, the axis of the first transmission shaft 609 is parallel to the first direction, the upper cutter head 401 is also installed on the power output end of the power device, and the upper cutter head 401 and the bevel gears rotate synchronously. The second feeding transmission mechanism 607 is connected with the third feeding transmission mechanism 608 through a second transmission shaft 610, the second feeding transmission mechanism 607 is composed of two meshed cylindrical gears, one of the cylindrical gears is installed on the first transmission shaft 609, the other cylindrical gear is installed on the second transmission shaft 610, the first transmission shaft 609 is parallel to the second transmission shaft 610, and the second transmission shaft 610 is positioned above the first transmission shaft 609. One end of the third feeding transmission mechanism 608 is fixedly connected with the second transmission shaft 610, and the other end is fixedly connected with the upper roller shaft 603. Because the feeding method of the existing cutting machine is manual feeding and cutting at the same time, the grass is easily brought into the cutting machine under the action of cutting force, and personnel are easily injured. The green grass fodder cutting machine that this application adopted is separated feed and cutting by drive mechanism, only needs to put into the feed mouth with the green grass fodder, can avoid the staff to cause the industrial injury. In addition, the transmission chain of the mechanism is simple, and the defects of high power consumption and poor operation effect are avoided.

As shown in fig. 1, 6 and 7, the first cutting chamber 7 has a guide groove 11 for the upper roller 603 to be embedded in, the guide groove 11 is an arc groove and the radian of the guide groove 11 is less than 180 degrees, the axis of the guide groove 11 is parallel to the first direction and the guide groove 11 is coaxial with the second transmission shaft 610, the distance between the upper roller 603 and the second transmission shaft 610 is not changed, two guide grooves 11 are provided, two ends of the upper roller 603 are respectively embedded in one guide groove 11, the upper roller 601 is located between the two guide grooves 11, the upper roller 601 can rotate around its own axis, the upper roller 603 can also drive the upper roller 601 to slide up and down along the guide grooves 11, the upper roller 601 can move up and down above the lower roller 602 relative to the lower roller 602, so that the gap between the upper roller 601 and the lower roller 602 can be adjusted, that the width of the feeding channel can be adjusted, so as to be suitable for adjusting the feeding amount of the forage. When too much forage is put into, the upper roller 601 is upwards pushed by the forage, the upper roller 603 upwards moves along the guide groove 11, the wide band of the feeding channel becomes large, the feeding channel is prevented from being blocked, the cutting machine is ensured to normally work, and the reliability is improved. After the forage in the feeding channel is reduced, under the action of the elastic element 605, the upper roller 601 and the upper roller 603 gradually move downwards, so that the wide band of the feeding channel is reduced, finally the upper roller 601 can restore to the initial position, and the distance between the upper roller 601 and the lower roller 602 at the initial position is the minimum. The structure realizes the effects of uniform stress of forage and stable feeding through the automatic adjusting mechanism under the condition of different feeding amounts.

As shown in fig. 1 and 6, it is preferable that a plurality of elastic elements 605 are provided, the elastic elements 605 are tension springs, the elastic elements 605 apply a force to the upper roller 601 to move the upper roller towards the lower roller 602, one end of the elastic elements 605 is connected to the upper roller 603, the other end of the elastic elements 605 is connected to the lower roller 604, the height position of the lower roller 604 is kept unchanged, and the elastic elements 605 apply a downward tension to the upper roller 603 so that the upper roller 601 can move to the initial position. In this embodiment, two elastic elements 605 are provided, and the upper roller 601 and the lower roller 602 are located between the two elastic elements 605.

As shown in fig. 1, the power device includes a motor 1, a power output shaft, a first transmission mechanism 9 connected with the motor 1 and the power output shaft, and a second transmission mechanism 10 connected with the power output shaft and the second cutting device 5, wherein the first transmission mechanism 9 and the second transmission mechanism 10 are belt transmission mechanisms, the power output shaft is a power output end of the power device, and the power output shaft is rotatably disposed on the first cutting chamber 7. The motor 1 is fixedly installed on the frame 3, the motor 1 is located on the outer sides of the first cutting chamber 7 and the second cutting chamber 8, the height of the motor 1 is smaller than that of the first cutting chamber 7, the first transmission mechanism 9 is used for transmitting power generated by the motor 1 to a power output shaft, the bevel gears of the upper cutter disc 401 and the first feeding transmission mechanism 606 are fixedly installed on the power output shaft, the first transmission mechanism 9 is located on the outer side of the first cutting chamber 7, one end of the first transmission mechanism 9 is fixedly connected with a motor shaft of the motor 1, the other end of the first transmission mechanism 9 is fixedly connected with the power output shaft, and the first transmission mechanism 9 is obliquely arranged. After the motor 1 operates, the power output shaft is driven to rotate through the first transmission mechanism 9, the power output shaft drives the upper cutter disc 401 to synchronously rotate, and meanwhile, power is transmitted to the feeding device 6. The second transmission mechanism 10 is located outside the first cutting chamber 7, the second transmission mechanism 10 transmits power to the second cutting device 5, the second transmission mechanism 10 enables two lower cutter discs of the second cutting device 5 and the upper cutter disc 401 to synchronously rotate, and the second transmission mechanism 10 is used for transmitting power from a power output shaft to the cutter disc transmission mechanism, so that the two lower cutter discs can be driven to rotate finally. The upper end of the second transmission mechanism 10 is fixedly connected with the power output shaft, and the lower end of the second transmission mechanism 10 is coaxially and fixedly connected with the driving gear 505 of the cutter head transmission mechanism.

The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.

Claims (9)

1. A green grass fodder cutting method is characterized in that a green grass fodder cutting machine is adopted, and the method comprises the following steps:

s1, conveying the forage to the first cutting chamber by a feeding device of the grass forage cutting machine;

s2, cutting the forage for the first time by a first cutting device of the grass forage cutting machine;

s3, cutting the forage for the second time by a second cutting device of the grass forage cutting machine;

the green grass feed cutting machine also comprises a second cutting chamber positioned below the first cutting chamber, the first cutting device is arranged in the first cutting chamber, the second cutting device is arranged in the second cutting chamber, and the second cutting chamber is positioned below the first cutting chamber;

the top of the first cutting chamber is provided with a feed hopper for placing forage to be cut, the feed hopper is provided with a feed port facing the feeding device, and the feeding device conveys the forage positioned at the feed port downwards to the first cutting device to realize automatic feeding;

the first cutting device and the feeding device are arranged in an inner cavity of the first cutting chamber, the first cutting device comprises an upper cutter disc which can be rotatably arranged and upper cutters which are arranged on the upper cutter disc, the upper cutters are arranged in a plurality and are uniformly distributed on the upper cutter disc along the circumferential direction, the rotating center line of the upper cutter disc is positioned in the horizontal plane, the rotating center line of the upper cutter disc is parallel to the first direction, the first direction is the horizontal direction, and the upper cutters are used for cutting forage exposed from the feeding device and cutting the forage;

in step S1, the feeding device conveys the forage at the feeding port downwards to the first cutting device; the feeding device comprises an upper roller pressing wheel, a lower roller pressing wheel and an elastic element, wherein the upper roller pressing wheel can rotate and is arranged in a floating mode, the lower roller pressing wheel is positioned below the upper roller pressing wheel, the elastic element is used for applying elastic acting force to the upper roller pressing wheel, a gap is formed between the upper roller pressing wheel and the lower roller pressing wheel, a feeding channel for accommodating forage is formed in the gap, the first cutting device cuts the forage exposed from the feeding channel, and the size of the gap between the upper roller pressing wheel and the lower roller pressing wheel is adjustable; the upper roller pressing wheel and the lower roller pressing wheel are rotatably arranged in the first cutting chamber, the upper roller pressing wheel and the lower roller pressing wheel are positioned on the same side of the upper cutter, in step S2, the upper cutter can rotate to be positioned on the same straight line parallel to the first direction with the feeding channel, the upper cutter continuously rotates to the feeding channel and cuts exposed forage, the first cutting of the forage is completed, and the forage is cut;

the feeding device also comprises a first feeding transmission mechanism, a second feeding transmission mechanism and a third feeding transmission mechanism which are sequentially connected, the upper roll wheel is connected with the upper roll shaft, and the upper roll shaft is connected with the third feeding transmission mechanism;

the upper roll pinch roller is of a cylindrical structure, is sleeved on the upper roll shaft and is coaxially and fixedly connected with the upper roll shaft, and the first cutting chamber provides a supporting effect for the upper roll shaft; the length of the lower roller pressing wheel is the same as that of the upper roller pressing wheel, the lower roller pressing wheel is connected with the lower roller shaft, the lower roller pressing wheel is of a cylindrical structure, the lower roller pressing wheel is sleeved on the lower roller shaft and is coaxially and fixedly connected with the lower roller shaft, the lower roller shaft is parallel to the upper roller shaft, the lower roller shaft is positioned below the upper roller shaft, and the first cutting chamber provides a supporting effect for the lower roller shaft;

the first feeding transmission mechanism is a bevel gear mechanism and is connected with the second feeding transmission mechanism through a first transmission shaft, the first feeding transmission mechanism consists of two bevel gears which are meshed with each other, one bevel gear is arranged on the power output end of the power device, the other bevel gear is arranged on the first transmission shaft, the axis of the first transmission shaft is parallel to the first direction, and the upper cutter head and the bevel gears rotate synchronously;

the second feeding transmission mechanism is a cylindrical gear mechanism and is connected with a third feeding transmission mechanism through a second transmission shaft, the second feeding transmission mechanism consists of two meshed cylindrical gears, one cylindrical gear is arranged on the first transmission shaft, the other cylindrical gear is arranged on the second transmission shaft, the first transmission shaft is parallel to the second transmission shaft, and the second transmission shaft is positioned above the first transmission shaft;

the third feeding transmission mechanism is a belt transmission mechanism, one end of the third feeding transmission mechanism is fixedly connected with the second transmission shaft, and the other end of the third feeding transmission mechanism is fixedly connected with the upper roll shaft;

the first cutting chamber is provided with guide grooves in which the upper roller is embedded, the guide grooves are arc-shaped grooves, the radian of each guide groove is less than 180 degrees, the axes of the guide grooves are parallel to a first direction, the guide grooves are coaxial with the second transmission shaft, the distance between the upper roller shaft and the second transmission shaft is unchanged, the number of the guide grooves is two, two ends of the upper roller shaft are respectively embedded into the two guide grooves, the upper roller pressing wheel is positioned between the two guide grooves and can rotate around the axis of the upper roller pressing wheel, the upper roller shaft can drive the upper roller pressing wheel to slide up and down along the guide grooves, the upper roller pressing wheel can move up and down relative to the lower roller pressing wheel above the lower roller pressing wheel, and the size of a gap between the upper roller pressing wheel and;

elastic element sets up a plurality ofly, and elastic element is extension spring, and elastic element is used for exerting the effort that makes its orientation carry out the removal near lower roll pinch roller department to last roll pinch roller, and elastic element's one end and last roll shaft are connected, and elastic element's the other end and the lower roll shaft are connected, and the high position of lower roll shaft keeps motionless, and elastic element exerts decurrent pulling force to last roll shaft to make last roll pinch roller can move to initial position.

2. The grass fodder cutting method according to claim 1, wherein the second cutting means includes a first lower cutter disc and a second lower cutter disc which are rotatably provided, a first lower cutter provided on the first lower cutter disc and a second lower cutter provided on the second lower cutter disc, the first lower cutter disc and the second lower cutter disc are oppositely arranged and a rotation center line of the first lower cutter disc is parallel to a rotation center line of the second lower cutter disc, and a cutting passage for grass to pass through is provided between the first lower cutter disc and the second lower cutter disc; in step S3, the first lower cutter and the second lower cutter cooperate to perform a second cutting operation on the forage falling into the cutting channel.

3. The grass fodder cutting method of claim 2, wherein when the first and second lower cutters are rotated into the cutting path while at least two first and second lower cutters are rotated into the cutting path, each first lower cutter is adjacent to one second lower cutter and the first and second lower cutters are on the same straight line parallel to the rotation center line of the first lower cutter.

4. The grass fodder cutting method of claim 3, wherein the first lower cutters are uniformly arranged on the first lower cutter disc in a plurality of circles along the axial direction, and all the first lower cutters of each circle are uniformly distributed on the first lower cutter disc along the whole circumferential direction; the second lower cutters are uniformly arranged on the second lower cutter disc in a plurality of circles along the axial direction, all the second lower cutters of each circle are uniformly distributed on the second lower cutter disc along the whole circumferential direction, and the number of the first lower cutters is the same as that of the second lower cutters.

5. The method of cutting a greenfeed as claimed in claim 2, wherein the first cutting device further comprises a cutter head transmission mechanism for transmitting the driving force generated by the power device to the first and second cutter heads, the cutter head transmission mechanism comprises a driving gear connected to the power device, a first driven gear engaged with the driving gear, and a second driven gear engaged with the first driven gear, the first driven gear is coaxially and fixedly connected to the first cutter head, the first driven gear and the first cutter head rotate synchronously, the second driven gear and the second cutter head are coaxially and fixedly connected, the second driven gear and the second cutter head rotate synchronously, and the first driven gear is located between the driving gear and the second driven gear.

6. The method for cutting a greenfeed according to any one of claims 1 to 5, wherein the upper cutter has a length, the upper cutter extends outward of the upper cutter, one end of the upper cutter in the length direction is fixedly connected to the upper cutter, the other end of the upper cutter in the length direction is located outward of the upper cutter, the upper cutter has an overall circular arc-shaped configuration, the axis of the upper cutter is parallel to the first direction, the edge of the upper cutter has a circular arc-shaped configuration, and the edge of the upper cutter extends from one end of the upper cutter to the other end of the upper cutter.

7. The grass fodder cutting method according to any one of claims 1 to 5, wherein there are two elastic members, and the upper and lower rollers are located between the two elastic members.

8. The grass fodder cutting method according to any one of claims 1 to 5, wherein the power unit includes a motor, a power output shaft, a first transmission mechanism connected to the motor and the power output shaft, and a second transmission mechanism connected to the power output shaft and the second cutting unit, the first transmission mechanism and the second transmission mechanism are belt transmission mechanisms, the motor is fixedly installed on the frame and the motor is located outside the first cutting chamber and the second cutting chamber, the height of the motor is smaller than the height of the first cutting chamber, the first transmission mechanism is used for transmitting the power generated by the motor to the power output shaft, the upper cutter head and the bevel gear of the first feed transmission mechanism are fixedly installed on the power output shaft, the first transmission mechanism is located outside the first cutting chamber, one end of the first transmission mechanism is fixedly connected to the motor shaft of the motor, the other end of the first transmission mechanism is fixedly connected to the power output shaft, the first transmission mechanism is arranged obliquely.

9. The grass fodder cutting method according to any one of claims 1 to 5, wherein when too much fodder is put in, the upper roller is pushed upward by the fodder, the upper roller moves upward along the guide groove, and the wide band of the feeding passage becomes large; after forage in the pay-off passageway reduces, under elastic element's effect, go up the roller and roll the axle and move down gradually for the broadband of pay-off passageway diminishes, and last roller can resume initial position finally, and the distance between the roller that is located initial position department and the roller of lower roll is minimum.

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