CN215530122U

CN215530122U - Straw cutter

Info

Publication number: CN215530122U
Application number: CN202121847721.8U
Authority: CN
Inventors: 袁林江; 郑文波
Original assignee: Zhijiang College of ZJUT
Current assignee: Zhijiang College of ZJUT
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-01-18
Anticipated expiration: 2031-08-09

Abstract

The utility model provides a straw cutter, and belongs to the technical field of straw cutters. It has solved the simple structure scheduling problem among the prior art. The automatic feeding device comprises a seat body, wherein a cutting device, a feeding device and a throwing device which are communicated with the cutting device are arranged on the seat body, and a driving device is arranged on one side of the seat body; the driving device is connected with the cutting device through the synchronous mechanism, a main shaft is arranged in the cutting device, penetrates out of the cutting device and is connected with the reversing device, the reversing device is arranged on the base body and is connected with the feeding device through a transmission shaft group, the reversing device can change the running direction of the feeding device through the transmission shaft group, and a reversing rod for people to adjust the rotating direction of the reversing device is arranged on one side of the reversing device; a plurality of cutters used for cutting forage are arranged in the cutting device, and the cutters are convex-edge cutters. The utility model has the advantages of realizing the random switching of the feeding or returning functions and the like.

Description

Straw cutter

Technical Field

The utility model belongs to the technical field of a straw cutter, and particularly relates to a straw cutter.

Background

The existing grass cutter is generally single in structure, after excessive forage is fed into the grass cutter, a feeding device of the grass cutter can clamp the forage, and the forage can be maintained for a long time after clamping, so that the normal operation of the grass cutter is influenced.

Disclosure of Invention

The present invention aims to address the above problems in the prior art by providing a lawnmower.

The purpose of the utility model can be realized by the following technical scheme: a straw cutter is characterized by comprising a seat body, wherein a cutting device, a feeding device and a throwing device which are communicated with the cutting device are arranged on the seat body, and a driving device is arranged on one side of the seat body; the cutting device is internally provided with a main shaft, the driving device is used for driving the main shaft to rotate, the main shaft penetrates out of the cutting device and is connected with a reversing device, the reversing device is arranged on the base body and is connected with the feeding device through a transmission shaft group, the reversing device can change the running direction of the feeding device through the transmission shaft group, and one side of the reversing device is provided with a reversing rod for people to adjust the rotating direction of the reversing device; the cutting device is internally provided with a plurality of cutters for cutting forage, the cutters are arranged on the main shaft, and the cutters are convex-edge cutters.

The working principle of the utility model is as follows: after the driving device is started, the main shaft is driven to rotate, then the main shaft drives the reversing device to start, and the reversing device drives the feeding device to start through the transmission shaft set;

a user puts forage on the feeding device, the feeding device conveys the forage into the cutting device, the cutter cuts the forage, and the cut forage is thrown out of the mower by an ascending airflow formed by the cutter rotating at a high speed from the throwing device; the user can change material feeding unit's rotation direction through the switching-over device, and when material feeding unit blocked material, can solve the card material situation through reversal material feeding unit's mode, the cutter sets up to the convex blade mouth cutter, and the smooth cutting effect of convex blade mouth cutter is better, and the load is even, can be more finely broken with the forage cutting.

In the above-mentioned hay cutter, the driving device is connected to the main shaft through a first synchronizing mechanism, the first synchronizing mechanism includes a first synchronizing wheel and a second synchronizing wheel, the first synchronizing wheel is disposed on an output shaft of the driving device, the second synchronizing wheel is disposed on the main shaft, and the first synchronizing wheel is connected to the second synchronizing wheel through a synchronizing belt.

In the above-mentioned hay cutter, the transmission shaft group includes a first transmission member, the first transmission member is disposed on an output shaft of the reversing device, the first transmission member is connected to a first transmission shaft, the reversing device drives the first transmission shaft to rotate through the first transmission member, the first transmission shaft is provided with a second transmission member, the second transmission member is connected to a second transmission shaft, and the first transmission shaft drives the second transmission shaft to rotate through the second transmission member.

In the above-mentioned hay cutter, the seat body is provided with a support, the support is provided with a first bearing seat for mounting the first conveying shaft and the second conveying shaft, and the seat body is provided with a second bearing seat for mounting the output shaft of the reversing device.

In the above-mentioned hay cutter, a synchronizing member is provided between the main shaft and the reversing device, and the synchronizing member, the first transmission member and the second transmission member are all in gear transmission.

In the above-mentioned lawn mower, the first bearing seat and the support are connected by bolts, and the second bearing seat and the base are connected by bolts.

In foretell hay cutter, material feeding unit include first feeding bin and second feeding bin, first feeding bin intercommunication second feeding bin, second feeding bin intercommunication cutting device, first feeding bin in be provided with the conveyer belt that is used for transporting the forage, second feeding bin in be provided with first feed roller and the second feed roller that is used for dividing the material, second feeding bin one side be provided with second lazytongs, second lazytongs connect second feed roller and conveyer belt, second feed roller can pass through second lazytongs drive the conveyer belt start or stop.

In the above-mentioned hay cutter, a fixed knife is disposed between the second feeding bin and the cutting device.

In the hay cutter, a first feeding plate and a second feeding plate for limiting the input amount of hay are arranged on two sides of the first feeding bin, and a first baffle and a second baffle for limiting the position of the hay are arranged on two sides of the second feeding bin.

In the above-mentioned hay cutter, the first feeding bin is provided with a feeding port, and the feeding port is used for conveying the hay into the second feeding bin by the conveyor belt.

In the above-mentioned hay cutter, a transverse plate is fixedly arranged between the first feeding plate and the second feeding plate.

In the above-mentioned grass cutter, the second feeding roller is located above the first feeding roller.

In the above-mentioned grass cutter, the first feeding roller is connected to the first transmission shaft, and the second feeding roller is connected to the second transmission shaft.

In foretell hay cutter, the one end of first feeding roller be provided with first extension post, the conveyer belt one end that is close to second feeding storehouse be provided with the second extension post, second lazytongs include first sprocket and second sprocket, first sprocket setting on first extension post, the second sprocket setting on the second extension post, first sprocket pass through the driving chain and connect the second sprocket.

In the above-mentioned lawn mower, the cutter comprises a cutter frame and a blade group arranged on the cutter frame, the cutter frame is connected with the main shaft, and the blade group is detachably connected with the cutter frame.

In the above-mentioned lawnmower, the blade group includes a first blade, a second blade and a third blade, the first blade, the second blade and the third blade are sequentially arranged on the blade holder at intervals, the specification of the first blade is smaller than that of the second blade, and the specification of the second blade is smaller than that of the third blade.

In the above-mentioned hay cutter, the cross-section of the cutting device is circular.

In the above-mentioned grass cutter, the blade holder and the blade group are both arc-shaped.

In one of the above-mentioned lawnmowers, the blade holder and the blade set are bolted together.

Compared with the prior art, the automatic feeding and discharging device has the advantages that the material blocking condition can be prevented from being aggravated, and the feeding or discharging function can be switched randomly.

Drawings

Fig. 1 is a schematic view of the structure of the present invention in the front view direction.

Fig. 2 is a side view schematic of the present invention.

Fig. 3 is a schematic top view of the present invention.

Fig. 4 is a schematic view of the cutter structure of the present invention.

Fig. 5 is a partial structural schematic diagram of the present invention.

Fig. 6 is a front view of a cutter according to the present invention.

In the figure, 1, a seat body; 2. a cutting device; 3. a feeding device; 4. a throwing device; 5. a drive device; 6. a first synchronization mechanism; 7. a main shaft; 8. a reversing device; 9. a transmission shaft group; 10. a reversing lever; 11. a cutter; 12. a first synchronizing wheel; 13. a second synchronizing wheel; 14. a synchronous belt; 15. a first transmission member; 16. a first drive shaft; 17. a second transmission member; 18. a second drive shaft; 19. a support; 20. a first bearing housing; 21. a second bearing housing; 22. a synchronizing member; 23. a first feeding bin; 24. a second feeding bin; 25. a conveyor belt; 26. a first feed roller; 27. a second feed roller; 28. a second synchronization mechanism; 29. fixing a cutter; 30. a first feeding plate; 31. a second feeding plate; 32. a first baffle plate; 33. a second baffle; 34. a feeding port; 35. a transverse plate; 36. a first extended column; 37. a second extended column; 38. a first sprocket; 39. a second sprocket; 40. a drive chain; 41. a tool holder; 42. a blade set; 43. a first blade; 44. a second blade; 45. and a third blade.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1-6, the grass cutter comprises a seat body 1, wherein a cutting device 2, a feeding device 3 and a throwing device 4 which are communicated with the cutting device 2 are arranged on the seat body 1, and a driving device 5 is arranged on one side of the seat body 1; a main shaft 7 is arranged in the cutting device 2, the driving device 5 is used for driving the main shaft 7 to rotate, the main shaft 7 penetrates out of the cutting device 2 and is connected with a reversing device 8, the reversing device 8 is arranged on the base body 1, the reversing device 8 is connected with the feeding device 3 through a transmission shaft group 9, the reversing device 8 can change the running direction of the feeding device 3 through the transmission shaft group 9, and a reversing rod 10 for people to adjust the rotating direction of the reversing device 8 is arranged on one side of the reversing device 8; a plurality of cutters 11 used for cutting forage are arranged in the cutting device 2, and the cutters 11 are convex-edge cutters 11.

In a further elaboration, the driving device 5 is connected with the main shaft 7 through the first synchronizing mechanism 6, the first synchronizing mechanism 6 comprises a first synchronizing wheel 12 and a second synchronizing wheel 13, the first synchronizing wheel 12 is arranged on an output shaft of the driving device 5, the second synchronizing wheel 13 is arranged on the main shaft 7, the first synchronizing wheel 12 is connected with the second synchronizing wheel 13 through a synchronous belt 14, the synchronous belt 14 has the advantages of stable operation and low noise during transmission, and meanwhile, the vibration generated when the output shafts of the main shaft 7 and the driving device 5 rotate is buffered, the belt transmission has the characteristics of simple structure, low cost, low installation requirement and the like, and the use effect is good.

In a further elaboration, the transmission shaft group 9 includes a first transmission member 15, the first transmission member 15 is disposed on an output shaft of the reversing device 8, the first transmission member 15 is connected with a first transmission shaft 16, the reversing device 8 drives the first transmission shaft 16 to rotate through the first transmission member 15, a second transmission member 17 is disposed on the first transmission shaft 16, the second transmission member 17 is connected with a second transmission shaft 18, the first transmission shaft 16 drives the second transmission shaft 18 to rotate through the second transmission member 17, the steering directions of the first transmission shaft 16 and the second transmission shaft 18 are opposite, after the output shaft of the reversing device 8 drives the first transmission member 15 to rotate, the first transmission shaft 16 is driven by the first transmission member 15, then the second transmission member 17 is driven to rotate by the first transmission shaft 16, and the second transmission shaft 18 is driven to rotate by the second transmission member 17.

In more detail, a support 19 is arranged on the seat body 1, a first bearing seat 20 for mounting a first transmission shaft and a second transmission shaft is arranged on the support 19, a second bearing seat 21 for mounting an output shaft of the reversing device 8 is arranged on the seat body 1, the first bearing seat 20 is used for supporting the first transmission shaft 16 and the second transmission shaft 18, the first transmission shaft 16 and the second transmission shaft 18 are rotatably connected with the first bearing seat 20, the second bearing seat 21 is used for supporting the output shaft of the reversing device 8, the output shaft of the reversing device 8 is rotatably connected with the second bearing seat 21, the first bearing seat 20 enables the first transmission shaft 16 and the second transmission shaft 18 not to change positions when rotating, the second bearing seat 21 enables the output shaft of the reversing device 8 not to change positions when rotating, and the use is safer.

In more detail, a synchronizing member 22 is arranged between the main shaft 7 and the reversing device 8, the synchronizing member 22, the first transmission member 15 and the second transmission member 17 are all in gear transmission, and the effect of changing the transmission direction is achieved through the gear transmission.

In a further elaboration, the first bearing seat 20 and the support 19 are connected through bolts, and the second bearing seat 21 and the seat body 1 are connected through bolts, so that the fixing is firmer, and the dismounting is more convenient.

In further detail, the feeding device 3 includes a first feeding bin 23 and a second feeding bin 24, the first feeding bin 23 is communicated with the second feeding bin 24, the second feeding bin 24 is communicated with the cutting device 2, a conveyor belt 25 for conveying forage is arranged in the first feeding bin 23, a first feeding roller 26 and a second feeding roller 27 for distributing the forage are arranged in the second feeding bin 24, a second synchronizing mechanism 28 is arranged on one side of the second feeding bin 24, the second synchronizing mechanism 28 is connected with the second feeding roller 27 and the conveyor belt 25, and the second feeding roller 27 can drive the conveyor belt 25 to start or stop through the second synchronizing mechanism 28.

In further detail, a fixed knife 29 is arranged between the second feeding bin 24 and the cutting device 2, the fixed knife 29 can slide up and down to cut forage, when the forage is to be fed into the cutting device 2 after being divided and sorted by the first feeding roller 26 and the second feeding roller 27, the forage after being divided and sorted is cut into a set length by the fixed knife 29, the cutting device 2 can better and more sufficiently cut the forage cut by the fixed knife 29, and the forage output by the cutting device 2 is the forage with the cutting degree required by a user.

In further detail, a first feeding plate 30 and a second feeding plate 31 for limiting the amount of the fed forage are arranged on two sides of the first feeding bin 23, a first baffle 32 and a second baffle 33 for limiting the position of the forage are arranged on two sides of the second feeding bin 24, the first feeding plate 30 and the second feeding plate 31 limit the left side and the right side of the first feeding bin 23, the amount of the fed forage is limited, the forage cannot fall from the first feeding bin 23, excessive forage placed by a user is prevented from causing jamming of the first feeding roller 26 and the second feeding roller 27, the first baffle 32 and the second baffle 33 limit the left side and the right side of the second feeding bin 24, and the forage is prevented from falling from two sides of the second feeding bin 24.

In further detail, the first feeding bin 23 is provided with a feeding hole 34, the feeding hole 34 is used for conveying forage to the second feeding bin 24 by the conveyor belt 25, the feeding hole 34 is used for conveying the forage to the first feeding roller 26 and the second feeding roller 27 by the conveyor belt 25, the feeding hole 34 can limit the forage when the forage enters, and the forage is prevented from entering too much at one time to cause jamming of the first feeding roller 26 and the second feeding roller 27.

In further detail, a transverse plate 35 is fixedly arranged between the first feeding plate 30 and the second feeding plate 31, and the first feeding plate 30 and the second feeding plate 31 are connected through the transverse plate 35 in an enhanced mode, so that the using effect is good.

In more detail, the second feeding roller 27 is located above the first feeding roller 26, the first feeding roller 26 is connected with the first transmission shaft 16, the second feeding roller 27 is connected with the second transmission shaft 18, the second feeding roller 27 is arranged above the first feeding roller 26, the first feeding roller 26 is provided with a latch, when grass is sorted, the first feeding roller 26 sorts grass through the latch, the second feeding roller 27 presses the grass onto the first feeding roller 26, the thickness of the grass entering the feeding roller group is limited, the situation that the grass is too much fed to cause the jamming of the feeding roller group is avoided, meanwhile, the second feeding roller 27 can also play a role of pressing the grass onto the first feeding roller 26, the situation that the grass cannot be fully sorted by the first feeding roller 26 due to too loose grass is avoided, the first feeding roller 26 and the second feeding roller 27 are matched to sort the grass into the cutting device 2, the rotation directions of the first transmission shaft 16 and the second transmission shaft 18 are opposite, the rotation directions of the first feeding roller 26 connected with the first transmission shaft 16 and the second feeding roller 27 connected with the second transmission shaft 18 are opposite, but the first feeding roller 26 and the second transmission shaft 18 are arranged up and down, and when the first feeding roller 26 and the second transmission shaft 18 rotate, the feeding directions of the first feeding roller 26 and the second transmission shaft 18 are consistent.

In more detail, one end of the first feeding roller 26 is provided with a first extending column 36, one end of the conveyor belt 25 close to the second feeding chamber 24 is provided with a second extending column 37, the second synchronizing mechanism 28 comprises a first chain wheel 38 and a second chain wheel 39, the first chain wheel 38 is arranged on the first extending column 36, the second chain wheel 39 is arranged on the second extending column 37, when the first chain wheel 38 is connected with the second chain wheel 39 through a transmission chain 40, the first extending column 36 rotates synchronously, the first extending column 36 drives the first chain wheel 38 to rotate, the first chain wheel 38 drives the second chain wheel 39 to rotate through the transmission chain 40, the second chain wheel 39 drives the second extending column 37 to rotate, the second extending column 37 drives the conveyor belt to rotate, the second synchronizing mechanism 28 adopts a chain transmission, compared with the belt transmission, the chain transmission can maintain an accurate average transmission ratio, the required tension is small, the pressure acting on the first extending column 36 and the second extending column 37 is also small, the friction can be reduced.

In more detail, the cutter 11 comprises a cutter frame 41 and a blade group 42 arranged on the cutter frame 41, the cutter frame 41 is connected with the main shaft 7, the blade group 42 is detachably connected with the cutter frame 41, the cutter frame 41 is detachably connected with the blade group 42, when the blade group 42 is damaged, only the blade group 42 can be replaced without replacing the whole cutter 11, and the maintenance is more convenient.

In further detail, the blade set 42 includes a first blade 43, a second blade 44 and a third blade 45, the first blade 43, the second blade 44 and the third blade 45 are sequentially arranged on the blade holder 41 at intervals, the first blade 43 has a smaller specification than the second blade 44, and the second blade 44 has a smaller specification than the third blade 45;

after the forage enters the forage cutting device 2, because the forage cutting device 2 is hollow, one end of the forage entering the forage cutting device 2 can fall downwards due to gravity, three blades of the traditional blade group 42 have the same specification, when the blades close to the feeding device 3 cut the forage, the forage falls downwards, other blades can not cut the forage, other blades can cut the forage, but the forage is irregular in position when falling, and the forage cannot be cut more finely; in the utility model, the first blade 43 is positioned on one side of the cutter frame 41 close to the feeding device 3, the second blade 44 and the third blade 45 are sequentially arranged on the cutter frame 41 far away from the feeding device 3 at intervals, the specification of the first blade 43 is smaller than that of the second blade 44, the specification of the second blade 44 is smaller than that of the third blade 45, and after the forage enters the cutting device 2, the third blade 45, the second blade 44 and the first blade 43 are firstly contacted with the forage due to the largest specification of the third blade 45, so that the forage can be cut more finely.

Further saying, the cross section of blank device 6 is circular, can not have the contained angle in the blank device 6, and the forage can not pile up in blank device 2, and space utilization is higher.

In further detail, the knife rest 41 and the blade group 42 are both arc-shaped, so that the cutting resistance is small, and the cutting effect is good.

In more detail, the tool holder 41 and the blade group 42 are connected by bolts, so that the tool holder is convenient to disassemble and assemble.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Although a large number of terms are used here more, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. A straw cutter is characterized by comprising a seat body (1), wherein a cutting device (2), a feeding device (3) and a throwing device (4) which are communicated with the cutting device (2) are arranged on the seat body (1), and a driving device (5) is arranged on one side of the seat body (1); a main shaft (7) is arranged in the cutting device (2), the driving device (5) is used for driving the main shaft (7) to rotate, the main shaft (7) penetrates out of the cutting device (2) and is connected with a reversing device (8), the reversing device (8) is arranged on the base body (1), the reversing device (8) is connected with the feeding device (3) through a transmission shaft group (9), the reversing device (8) can change the running direction of the feeding device (3) through the transmission shaft group (9), and a reversing rod (10) for people to adjust the rotating direction of the reversing device (8) is arranged on one side of the reversing device (8); the cutting device (2) is internally provided with a plurality of cutters (11) for cutting forage, and the cutters (11) are convex edge cutters (11).

2. A lawnmower according to claim 1, wherein the drive unit (5) is connected to the main shaft (7) by a first synchronizing mechanism (6), the first synchronizing mechanism (6) comprising a first synchronizing wheel (12) and a second synchronizing wheel (13), the first synchronizing wheel (12) being arranged on the output shaft of the drive unit (5), the second synchronizing wheel (13) being arranged on the main shaft (7), the first synchronizing wheel (12) being connected to the second synchronizing wheel (13) by a synchronizing belt (14).

3. A lawnmower according to claim 1, wherein the transmission shaft set (9) comprises a first transmission member (15), the first transmission member (15) is disposed on the output shaft of the reversing device (8), the first transmission member (15) is connected with a first transmission shaft (16), the reversing device (8) drives the first transmission shaft (16) to rotate through the first transmission member (15), the first transmission shaft (16) is provided with a second transmission member (17), the second transmission member (17) is connected with a second transmission shaft (18), and the first transmission shaft (16) drives the second transmission shaft (18) to rotate through the second transmission member (17);

a support (19) is arranged on the base body (1), a first bearing seat (20) used for mounting a first transmission shaft and a second transmission shaft is arranged on the support (19), and a second bearing seat (21) used for mounting an output shaft of the reversing device (8) is arranged on the base body (1);

a synchronous piece (22) is arranged between the main shaft (7) and the reversing device (8), and the synchronous piece (22), the first transmission piece (15) and the second transmission piece (17) are all in gear transmission;

the first bearing seat (20) is connected with the support (19) through bolts, and the second bearing seat (21) is connected with the base body (1) through bolts.

4. A chaffer according to claim 3, characterized in that the feed device (3) comprises a first feed bin (23) and a second feed bin (24), the first feeding bin (23) is communicated with the second feeding bin (24), the second feeding bin (24) is communicated with the cutting device (2), a conveyor belt (25) for conveying forage is arranged in the first feeding bin (23), a first feeding roller (26) and a second feeding roller (27) for distributing materials are arranged in the second feeding bin (24), a second synchronous mechanism (28) is arranged at one side of the second feeding bin (24), the second synchronous mechanism (28) is connected with the second feeding roller (27) and the conveyor belt (25), the second feeding roller (27) can drive the conveyor belt (25) to start or stop through the second synchronous mechanism (28);

a fixed knife (29) is arranged between the second feeding bin (24) and the cutting device (2).

5. A chaff cutter according to claim 4, characterized in that the first feeding chamber (23) is provided with a first feeding plate (30) and a second feeding plate (31) for limiting the input amount of the forage on both sides, and the second feeding chamber (24) is provided with a first baffle plate (32) and a second baffle plate (33) for limiting the position of the forage on both sides; the first feeding bin (23) is provided with a feeding port (34), and the feeding port (34) is used for conveying forage to the second feeding bin (24) by the conveyor belt (25).

6. A lawnmower according to claim 4, wherein the second feed roller (27) is located above the first feed roller (26), the first feed roller (26) being connected to the first drive shaft (16), the second feed roller (27) being connected to the second drive shaft (18).

7. A lawnmower according to claim 4, wherein the first feed roller (26) is provided with a first extending post (36) at one end, the conveyor belt (25) is provided with a second extending post (37) at an end adjacent to the second feed chamber (24), the second synchronizing mechanism (28) comprises a first sprocket (38) and a second sprocket (39), the first sprocket (38) is provided on the first extending post (36), the second sprocket (39) is provided on the second extending post (37), and the first sprocket (38) is connected to the second sprocket (39) via a drive chain (40).

8. A lawnmower according to claim 1, wherein the cutting blade (11) comprises a blade holder (41) and a blade group (42) mounted on the blade holder (41), the blade holder (41) being connected to the spindle (7), the blade group (42) being removably connected to the blade holder (41).

9. A lawnmower according to claim 8, wherein the blade set (42) comprises a first blade (43), a second blade (44) and a third blade (45), the first blade (43), the second blade (44) and the third blade (45) being sequentially spaced apart on the blade carrier (41), the first blade (43) having a smaller dimension than the second blade (44), the second blade (44) having a smaller dimension than the third blade (45).

10. A lawnmower according to claim 9, wherein the blade carrier (41) and the blade set (42) are each arranged in an arc.