Silage chopper device with adjustable stationary knife

Abstract

The utility model discloses an ensiling chopper device with an adjustable stationary knife, and belongs to the field of choppers. Comprising a movable cutter combination, a fixed cutter combination, a fixed cutter arm combination, a belt pulley combination and a shell welding part, the movable cutter combination is arranged in the shell welding part and connected with the belt pulley combination, the fixed cutter combination is rotationally connected with the interior of the shell welding part and can swing front and back, and the fixed cutter arm combination comprises a sleeve, a cutter adjusting screw rod, a supporting lug, a crank arm and a locking assembly. The lower end of the crank arm is fixedly connected with the fixed cutter combination, the middle lower end of the crank arm is rotationally connected with the shell welding part, the upper end of the crank arm is fixedly connected with the supporting lug, the rear end of the cutter adjusting screw is connected with the screw positioning seat through a locking assembly, the middle part of the cutter adjusting screw is in threaded connection with a rotating shaft on the supporting lug, the front end of the cutter adjusting screw is fixedly connected with the sleeve, and the sleeve is fixed to the shell welding part through the locking screw. The blade adjusting device has the advantages of being simple in structure, stable and reliable, large working force and a stable blade adjusting effect can be provided through the adjusting mode, and stability of the position and the angle of the blade is guaranteed.

Description

Technical Field

[0001] The utility model belongs to a shredder, in particular to a silage shredder device with adjustable fixed blades. Background Art

[0002] The silage machine plays a vital role in the harvesting and processing of silage, and the blade is one of the core components of the silage machine. Therefore, the emergence and application of the fixed blade adjustment mechanism is mainly to meet the following needs and achieve the following goals: 1. Adapt to different feed types; 2. Improve cutting effect and work quality; 3. Reduce energy consumption and loss; 4. Improve operational flexibility and convenience. In short, the application background of the silage machine fixed blade adjustment mechanism is mainly to improve the adaptability, work quality and operational flexibility of the silage machine to meet the requirements of different feed types and work needs. By reasonably adjusting the position and angle of the blade, the working efficiency of the silage machine can be improved, energy consumption and feed loss can be reduced, so as to better meet the silage needs of agricultural production.

[0003] At present, the fixed blade adjustment mechanism of domestic silage chopping generally completely fixes the fixed blade seat, and installs the fixed blade on the oblong hole reserved in the fixed blade seat. When adjusting the blade, the fixed blade must be loosened first and then roughly moved back and forth. This method of blade adjustment is time-consuming and labor-intensive, with low adjustment accuracy and low operating efficiency. The automatic fixed blade adjustment mechanism used by large foreign farms is advanced but has a complex structure and high maintenance cost, which is not suitable for popularization in China. Therefore, the domestic market urgently needs a fixed blade adjustment device for silage machines that meets the national conditions. Utility Model Content

[0004] The utility model aims to provide a silage chopper device with adjustable fixed blades, so as to overcome the defects of the prior art silage chopper device that the blade adjustment method is time-consuming and labor-intensive, the adjustment accuracy is low, and the operation efficiency is not high.

[0005] The utility model is realized by adopting the following technical solutions:

[0006] A silage chopper device with an adjustable fixed knife comprises a moving knife assembly, a fixed knife assembly, a fixed knife arm assembly, a pulley assembly and a shell weld. The moving knife assembly is arranged in the shell weld and connected to the pulley assembly. The fixed knife assembly is rotatably connected to the inside of the shell weld and can swing back and forth. The fixed knife arm assembly comprises a sleeve, a knife adjusting screw, a support ear, a crank arm and a locking assembly. The lower end of the crank arm is fixedly connected to the fixed knife assembly, the middle and lower ends are rotatably connected to the shell weld, and the upper end is fixedly connected to the support ear. The rear end of the knife adjusting screw is connected to a screw positioning seat on the shell weld through a locking assembly, the middle part is threadedly connected to a rotating shaft on the support ear, and the front end is fixedly connected to the sleeve, and the sleeve is fixed to the shell weld through a locking screw.

[0007] Furthermore, the movable knife assembly includes a knife shaft, a transmission hub, a roller and movable blades, a plurality of movable blades are fixed on the circumference of the roller, the knife shaft passes through the center of the transmission hub and is connected to the transmission hub, the transmission hub is fixed on the roller, and both ends of the knife shaft are rotatably connected to the shell weld.

[0008] Furthermore, the pulley assembly includes a pulley body and a pulley hub, the pulley body is fixedly connected to the pulley hub, and the pulley hub is connected to the cutter shaft.

[0009] Further, the fixed knife assembly includes a fixed blade, a fixed knife seat, a pull rod and a pad, the fixed blade is fixed to the upper end of the fixed knife seat, the pad is fixedly installed at the rear end of the fixed knife seat, the pull rod is connected to a rotating sleeve fixed to the lower end of the fixed knife seat through a pin, the rotating sleeve is rotatably connected to a rotating arm seat welded to the shell, and the pull rod passes through the rotating arm seat and is connected to the shell weld.

[0010] Furthermore, the locking assembly includes a thrust ball bearing, a disc spring, a spacer and a slotted nut. Two of the spacers, thrust ball bearings, disc springs and slotted nuts are symmetrically mounted on the knife adjusting screw. The two spacers are clamped between the screw locating seats welded on the shell, and the slotted nut is fixed on the knife adjusting screw.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) Stability: This fixed blade adjustment mechanism has the characteristics of simple structure, stability and reliability. The adjustment method of the blade screw can provide greater working force and stable blade adjustment effect, ensuring the stability of the blade position and angle.

[0013] (2) Large adjustment range: This fixed blade adjustment mechanism can realize the lifting and angle adjustment of the fixed blade by rotating the blade adjustment screw. The adjustment range of the screw adjustment mechanism is large and can meet the requirements of different feed types and work needs.

[0014] (3) Easy operation: This fixed blade adjustment mechanism is easy to operate. The position and angle of the fixed blade can be adjusted by rotating the blade adjustment screw. There is no need to rely on electrical or hydraulic control systems. The operator can easily make adjustments, which improves the convenience of operation.

[0015] (4) Low maintenance cost: This fixed knife adjustment mechanism has a simple structure, fewer parts, and is easy to maintain and repair. Generally, the screw and nut have good wear resistance and are not easy to be damaged, so the maintenance cost is relatively low.

[0016] (5) Low cost: Compared with hydraulic or electric adjustment mechanisms, the cost of this fixed knife adjustment mechanism is relatively low. It does not require an additional hydraulic system or motor drive device, which can reduce the investment cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structure diagram of the utility model. Figure 1 .

[0018] Figure 2 It is a structural schematic diagram of the movable knife assembly of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the fixed knife assembly of the utility model.

[0020] Figure 4 It is a structural schematic diagram of the fixed knife arm combination of the utility model.

[0021] Figure 5 It is a structural schematic diagram of the pulley combination of the utility model.

[0022] Figure 6 This is a three-dimensional structure diagram of the utility model. Figure 2 .

[0023] Figure 7 This is a three-dimensional structure diagram of the utility model. Figure 3 .

[0024] In the figure: 1. movable knife assembly; 2. fixed knife assembly; 3. fixed knife arm assembly; 4. pulley assembly; 5. shell welding; 11. knife shaft; 12. driving hub; 13. roller; 14. movable knife blade; 21. fixed knife blade; 22. fixed knife seat; 23. pull rod; 24. pad; 25. rotating sleeve; 26. pin shaft; 31. sleeve; 32. knife adjusting screw; 33. support ear; 34. crank arm; 35. thrust ball bearing; 36. disc spring; 37. pad; 38. slotted nut; 39. rotating shaft; 41. pulley body; 42. pulley hub; 51. rotating arm seat; 52. screw positioning seat; 53. locking screw. DETAILED DESCRIPTION

[0025] The utility model will be further described below in conjunction with the accompanying drawings.

[0026] like Figure 1 As shown, a silage chopper device with an adjustable fixed knife includes a moving knife assembly 1, a fixed knife assembly 2, a fixed knife arm assembly 3, a pulley assembly 4 and a shell weld 5. The moving knife assembly 1 is arranged in the shell weld 5 and is connected to the pulley assembly 4. The fixed knife assembly 2 is rotatably connected to the inside of the shell weld 5 and can swing back and forth. The fixed knife arm assembly 3 is connected to the fixed knife assembly 2, and the fixed knife assembly 2 can be lifted and lowered and the angle adjusted.

[0027] like Figure 2As shown, the moving knife assembly 1 includes a knife shaft 11, a driving hub 12, a roller 13 and moving blades 14. A plurality of moving blades 14 are fixed to the circumference of the roller 13 by means of a pressure plate and bolts. The knife shaft 11 passes through the center of the driving hub 12 and is connected to the driving hub 12 by means of a flat key. The driving hub 12 is fixed to the roller 13 by means of bolts. Both ends of the knife shaft 11 are rotatably connected to the shell weld 5.

[0028] like Figure 3 , Figure 6 As shown, the fixed knife assembly 2 includes a fixed blade 21, a fixed knife seat 22, a pull rod 23 and a pad 24. The fixed blade 21 is fixed to the upper end of the fixed knife seat 22, and the pad 24 is fixedly installed at the rear end of the fixed knife seat 22. The pull rod 23 is connected to a rotating sleeve 25 fixed to the lower end of the fixed knife seat 22 through a pin shaft 26. The rotating sleeve 25 is rotatably connected to the rotating arm seat 51 of the shell weld 5, and the pull rod 23 passes through the rotating arm seat 51 and is connected to the shell weld 5.

[0029] like Figure 4 , Figure 7 As shown, the fixed knife arm assembly 3 includes a sleeve 31, a knife adjusting screw 32, a support ear 33, a crank arm 34 and a locking assembly. The lower end of the crank arm 34 is fixedly connected to the fixed knife seat 22, the middle and lower ends are rotatably connected to the shell weld 5, and the upper end is fixedly connected to the support ear 33. The rear end of the knife adjusting screw 32 is connected to the screw positioning seat 52 on the shell weld 5 through the locking assembly, the middle part is threadedly connected to the rotating shaft 39 on the support ear 33, and the front end is fixedly connected to the sleeve 31 through an elastic pin, and the sleeve 31 is fixed to the shell weld 5 through a locking screw 53.

[0030] Among them, the locking assembly includes a thrust ball bearing 35, a disc spring 36, a pad 37 and a slotted nut 38. The two pads 37, the thrust ball bearing 35, the disc spring 36 and the slotted nut 38 are symmetrically sleeved on the knife adjusting screw 32. The two pads 37 are clamped between the screw positioning seats 52 on the shell weld 5. The slotted nut 38 is locked and fixed on the knife adjusting screw 32 to lock the two pads 37 between the screw positioning seats 52. The thrust ball bearing 35 and the disc spring 36 are arranged between the pad 37 and the slotted nut 38, so that the knife adjusting screw 32 can rotate. The knife adjusting screw 32 can be axially locked in the screw positioning seat 52 through the locking device, and can rotate in the screw positioning seat 52, so as to ensure the stability of the position and angle of the fixed knife assembly 2.

[0031] like Figure 5 As shown, the pulley assembly 4 includes a pulley body 41 and a pulley hub 42, the pulley body 41 and the pulley hub 42 are fixedly connected by bolts, and the pulley hub 42 is connected to the knife shaft 11 by bolts and a shaft end retaining ring. When working, the pulley assembly 4 is connected to the power output mechanism through a belt to drive the movable knife assembly 1 to rotate.

[0032] The working principle of the utility model is as follows: when it is necessary to adjust the position and angle of the fixed knife assembly 2, the locking screw 53 is removed from the shell weld 5, and then the sleeve 31 is rotated with a tool, and the sleeve 31 drives the knife adjusting screw 32 to rotate, thereby driving the rotating shaft 39 threadedly connected to the knife adjusting screw 32 to move along the knife adjusting screw 32, and the rotating shaft 39 drives the support ear 33 and the crank arm 34 to move, and then the crank arm 34 drives the fixed knife assembly 2 to swing back and forth on the rotating arm seat 51 through the rotating sleeve 25. When the fixed blade 21 on the fixed knife assembly 2 is adjusted to a suitable position and angle, the locking screw 53 is used to lock the sleeve 31 on the shell weld 5 to fix the position and angle of the fixed knife assembly 2.

Claims

1. A silage chopper device with adjustable fixed blades, characterized in that: The invention comprises a movable knife assembly (1), a fixed knife assembly (2), a fixed knife arm assembly (3), a pulley assembly (4) and a shell weld (5), wherein the movable knife assembly (1) is arranged in the shell weld (5) and is connected to the pulley assembly (4), the fixed knife assembly (2) is rotatably connected to the inside of the shell weld (5) and can swing back and forth, the fixed knife arm assembly (3) comprises a sleeve (31), a knife adjusting screw (32), a support ear (33), a crank arm (34) and a locking assembly, and the movable knife assembly (1) is arranged in the shell weld (5) and is connected to the pulley assembly (4), the fixed knife assembly (2) is rotatably connected to the inside of the shell weld (5) and can swing back and forth, and the fixed knife arm assembly (3) comprises a sleeve (31), a knife adjusting screw (32), a support ear (33), a crank arm (34) and a locking assembly. The lower end of the crank arm (34) is fixedly connected to the fixed knife assembly (2), the middle and lower ends are rotatably connected to the shell weld (5), and the upper end is fixedly connected to the support ear (33). The rear end of the knife adjusting screw (32) is connected to the screw positioning seat (52) on the shell weld (5) through a locking assembly, the middle part is threadedly connected to the rotating shaft (39) on the support ear (33), and the front end is fixedly connected to the sleeve (31), and the sleeve (31) is fixed to the shell weld (5) through a locking screw (53).

2. The silage chopper device with adjustable fixed blade according to claim 1, characterized in that: The movable knife assembly (1) comprises a knife shaft (11), a transmission hub (12), a roller (13) and movable blades (14); a plurality of movable blades (14) are fixed on the circumference of the roller (13); the knife shaft (11) passes through the center of the transmission hub (12) and is connected to the transmission hub (12); the transmission hub (12) is fixed on the roller (13); and both ends of the knife shaft (11) are rotatably connected to the shell weld (5).

3. The silage chopper device with adjustable fixed blade according to claim 2, characterized in that: The pulley assembly (4) comprises a pulley body (41) and a pulley hub (42); the pulley body (41) is fixedly connected to the pulley hub (42); and the pulley hub (42) is connected to the knife shaft (11).

4. The silage chopper device with adjustable fixed blade according to claim 1, characterized in that: The fixed blade assembly (2) comprises a fixed blade (21), a fixed blade seat (22), a pull rod (23) and a pad (24); the fixed blade (21) is fixed to the upper end of the fixed blade seat (22); the pad (24) is fixedly mounted at the rear end of the fixed blade seat (22); the pull rod (23) is connected to a rotating sleeve (25) fixed to the lower end of the fixed blade seat (22) via a pin shaft (26); the rotating sleeve (25) is rotatably connected to a rotating arm seat (51) of a shell weld (5); and the pull rod (23) passes through the rotating arm seat (51) and is connected to the shell weld (5).

5. A silage chopper device with adjustable fixed blade according to any one of claims 1 to 4, characterized in that: The locking assembly comprises a thrust ball bearing (35), a disc spring (36), a cushion block (37) and a slotted nut (38); two cushion blocks (37), the thrust ball bearing (35), the disc spring (36) and the slotted nut (38) are symmetrically sleeved on the adjusting screw (32); the two cushion blocks (37) are clamped between screw positioning seats (52) on the shell weld (5); and the slotted nut (38) is fixed on the adjusting screw (32).

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