Rice stubble cutting mechanism after rice harvesting

Abstract

The utility model discloses a rice stubble cutting mechanism after rice harvesting, which comprises a transmission wheel, an eccentric column, a shaft sleeve, a connecting arm, a rotating shaft, a swinging crank arm, a linkage rod and a cutting mechanism, the transmission wheel is arranged on the upper side of a main body rack through a transmission shaft and a bearing seat, and the transmission wheel is driven by a power mechanism to rotate; the eccentric column and the shaft sleeve are fixedly connected to the eccentric position of the side face of the transmission wheel, the rotating shaft is arranged on the lower side of the main machine frame through the pin shaft base, the middle of the swing crank arm is fixedly connected to the rotating shaft, and the upper end of the connecting arm is movably connected to the eccentric column and the shaft sleeve through a pin shaft. The lower end of the connecting arm is movably connected with the upper portion of the swing connecting lever through a pin shaft, one end of the linkage rod is movably connected to the lower portion of the swing connecting lever through a pin shaft, the other end of the linkage rod is movably connected to the driving end of the cutting mechanism through a pin shaft, and the cutting mechanism is fixedly connected to the bottom of the body rack and horizontally arranged. The utility model has the advantages of simple structure, convenience in use, good use effect and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery and equipment, in particular to a rice stubble cutting mechanism after rice harvesting. Background Art

[0002] Rice is an important food crop in my country. With the popularization of modern agricultural machinery, rice is mostly harvested by harvesters. After the harvest, rice straw will leave rice stubble, which will affect the cultivation of the next crop. Summary of the invention

[0003] The utility model aims to provide a rice stubble cutting mechanism after rice harvesting to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rice stubble cutting mechanism after rice harvesting, comprising: a transmission wheel, an eccentric column and a sleeve, a connecting arm, a rotating shaft, a swinging crank arm, a connecting rod, and a cutting mechanism, wherein the transmission wheel is arranged on the upper side of a main frame through a transmission shaft and a bearing seat, the transmission wheel rotates under the drive of a power mechanism, the eccentric column and the sleeve are fixedly connected to the eccentric position of the side surface of the transmission wheel, the rotating shaft is arranged on the lower side of the main frame through a pin shaft seat, the middle part of the swinging crank arm is fixedly connected to the rotating shaft, the upper end of the connecting arm is movably connected to the eccentric column and the sleeve through a pin shaft, and the lower end of the connecting arm is movably connected to the upper part of the swinging crank arm through a pin shaft, one end of the connecting rod is movably connected to the lower part of the swinging crank arm through a pin shaft, and the other end of the connecting rod is movably connected to the driving end of the cutting mechanism through a pin shaft, the cutting mechanism is fixedly connected to the bottom of the main frame, and the cutting mechanism is horizontally arranged.

[0005] Furthermore, the cutting mechanism includes a fixed base plate, a sliding bar, fixed teeth, and movable teeth. The fixed base plate is horizontally fixed to the bottom of the main frame, and a sliding groove is provided on the fixed base plate. The sliding bar is slidably connected to the sliding groove of the fixed base plate, and one end of the sliding bar is movably connected to the connecting rod through a pin shaft. The fixed teeth are fixed to the fixed base plate, and a plurality of fixed teeth are evenly arranged on the fixed base plate. The fixed teeth are pointed, and a horizontal incision is provided on the fixed teeth. The movable teeth are fixed to the sliding bar, and the movable teeth reciprocate in the horizontal incision of the fixed teeth. The reciprocating stroke of the movable teeth is greater than the spacing of the fixed teeth.

[0006] Furthermore, the swing crank arm is a right-angle crank arm, the swing crank arm has a double-layer structure, and the swing crank arms are correspondingly connected through a connecting shaft.

[0007] Compared with the prior art, the beneficial effects of the utility model are:

[0008] 1. The rice stubble cutting mechanism after rice harvesting of the utility model utilizes reciprocating movable teeth and fixed teeth to cut the remaining rice stubble during the movement of the main frame; specifically, during the movement, the rice stubble will enter the gap between the fixed teeth, and the moving movable teeth will push the rice stubble outward until the rice stubble contacts the fixed teeth, and the movable teeth will continue to squeeze and utilize the saw teeth on the side of the fixed teeth to cut off the rice stubble;

[0009] 2. The rice stubble cutting mechanism after rice harvesting of the utility model drives the transmission wheel to rotate through the power mechanism. The transmission wheel drives the swing arm to perform continuous reciprocating swing through the eccentric column, the shaft sleeve and the connecting arm. Then, the sliding bar in the cutting mechanism is driven to perform horizontal reciprocating motion through the transmission of the connecting rod. The structure is simple in construction and has a long service life.

[0010] The utility model has the advantages of simple structure, convenient use, good use effect, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the transmission structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the cutting mechanism structure of the utility model;

[0013] In the figure: 1-transmission wheel; 2-eccentric column and sleeve; 3-connecting arm; 4-rotating shaft; 5-swinging arm; 6-linking rod; 7-cutting mechanism,

[0014] 11-fixed base plate; 12-sliding bar; 13-fixed teeth; 14-movable teeth, DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figure 1 , 2The utility model provides a rice stubble cutting mechanism after rice harvesting, comprising: a transmission wheel 1, an eccentric column and a shaft sleeve 2, a connecting arm 3, a rotating shaft 4, a swinging arm 5, a connecting rod 6, and a cutting mechanism 7. The transmission wheel 1 is arranged on the upper side of a main frame through a transmission shaft and a bearing seat, and the transmission wheel 1 rotates under the drive of a power mechanism. The eccentric column and the shaft sleeve 2 are fixedly connected to the eccentric position of the side of the transmission wheel 1, and the rotating shaft 4 is arranged on the lower side of the main frame through a pin shaft seat. The middle part of the swinging arm 5 is fixedly connected to the rotating shaft 4, and the upper end of the connecting arm 3 is movably connected to the eccentric column and the shaft sleeve 2 through a pin shaft, and the lower end of the connecting arm 3 is movably connected to the upper part of the swinging arm 5 through a pin shaft, one end of the connecting rod 6 is movably connected to the lower part of the swinging arm 5 through a pin shaft, and the other end of the connecting rod 6 is movably connected to the driving end of the cutting mechanism 7 through a pin shaft, and the cutting mechanism 7 is fixedly connected to the bottom of the main frame, and the cutting mechanism 7 is horizontally arranged. The driving wheel 1 is driven to rotate by the power mechanism, and the driving wheel 1 drives the swing arm 4 to swing back and forth continuously through the eccentric column, the sleeve 2 and the connecting arm 3, and then drives the sliding bar in the cutting mechanism 7 to reciprocate horizontally through the transmission of the connecting rod 6. The structure is simple in construction and has a long service life.

[0017] Furthermore, the cutting mechanism 7 includes a fixed base plate 11, a sliding bar 12, fixed teeth 13, and movable teeth 14. The fixed base plate 11 is horizontally fixed to the bottom of the main frame, and a sliding groove is provided on the fixed base plate 11. The sliding bar 12 is slidably connected to the sliding groove of the fixed base plate 11. One end of the sliding bar 12 is movably connected to the connecting rod 6 through a pin shaft. The fixed teeth 13 are fixed to the fixed base plate 11, and a plurality of fixed teeth 13 are evenly arranged on the fixed base plate 11. The fixed teeth 13 are pointed, and a horizontal incision is provided on the fixed teeth 13. The movable teeth 14 are fixed to the sliding bar 12, and the movable teeth 14 reciprocate in the horizontal incision of the fixed teeth 13. The reciprocating stroke of the movable teeth 14 is greater than the spacing of the fixed teeth 13. The reciprocating movable teeth 14 and the fixed teeth 13 are used to cut the remaining rice stubble during the movement of the main frame; specifically, during the movement, the rice stubble will enter the gap between the fixed teeth 13, and the moving movable teeth 14 will push the rice stubble outward until the rice stubble contacts the fixed teeth 13, and the movable teeth 14 will continue to squeeze and use the saw teeth on the side of the fixed teeth to cut the rice stubble;

[0018] Furthermore, the swing arm 5 is a right-angled arm, and the swing arm 5 is a double-layer structure, and the swing arms 5 are correspondingly connected through a connecting shaft. The swing arm 5 with a double-layer structure is more firmly constructed and has better stability.

[0019] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rice stubble cutting mechanism after rice harvesting, characterized in that: include: A transmission wheel (1), an eccentric column and a shaft sleeve (2), a connecting arm (3), a rotating shaft (4), a swinging arm (5), a connecting rod (6), and a cutting mechanism (7), wherein the transmission wheel (1) is arranged on the upper side of a main frame through a transmission shaft and a bearing seat, the transmission wheel (1) rotates under the drive of a power mechanism, the eccentric column and the shaft sleeve (2) are fixedly connected to the eccentric position of the side of the transmission wheel (1), the rotating shaft (4) is arranged on the lower side of the main frame through a pin seat, and the swinging arm (5) is The connecting arm (3) is fixedly connected to the rotating shaft (4); the upper end of the connecting arm (3) is movably connected to the eccentric column and the shaft sleeve (2) through a pin shaft, and the lower end of the connecting arm (3) is movably connected to the upper part of the swing arm (5) through a pin shaft; one end of the connecting rod (6) is movably connected to the lower part of the swing arm (5) through a pin shaft, and the other end of the connecting rod (6) is movably connected to the driving end of the cutting mechanism (7) through a pin shaft; the cutting mechanism (7) is fixedly connected to the bottom of the main frame, and the cutting mechanism (7) is horizontally arranged.

2. A rice stubble cutting mechanism after rice harvesting according to claim 1, characterized in that: The cutting mechanism (7) comprises a fixed base plate (11), a sliding bar (12), a fixed tooth (13), and a movable tooth (14). The fixed base plate (11) is horizontally fixed to the bottom of the main frame. A sliding groove is provided on the fixed base plate (11). The sliding bar (12) is slidably connected to the sliding groove of the fixed base plate (11). One end of the sliding bar (12) is movably connected to the linkage rod (6) through a pin shaft. The fixed tooth (13) is fixed to the fixed base plate (11), and a plurality of fixed teeth (13) are evenly arranged on the fixed base plate (11). The fixed teeth (13) are pointed, and a horizontal cut is provided on the fixed teeth (13). The movable teeth (14) are fixed to the sliding bar (12), and the movable teeth (14) reciprocate in the horizontal cut of the fixed teeth (13). The reciprocating stroke of the movable teeth (14) is greater than the spacing of the fixed teeth (13).

3. The rice stubble cutting mechanism after rice harvesting according to claim 1, characterized in that: The swinging crank arm (5) is a right-angle crank arm, the swinging crank arm (5) is a double-layer structure, and the swinging crank arms (5) are correspondingly connected via a connecting shaft.

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