A split cutter transmission box

Abstract

The utility model relates to the technical field of power transmission, and specifically to a split cutter transmission box. It includes a box body and a transmission mechanism, the transmission mechanism is arranged in the box body, the transmission mechanism includes an input shaft, a transmission shaft and an output shaft, the transmission shaft is meshed and connected with the transmission shaft and the output shaft respectively through a transmission gear, and the output end of the output shaft is fixedly connected with a fling knife; the box body includes a horizontal box and a vertical box, the horizontal box and the vertical box are fixedly connected by bolts, the input shaft horizontal box is arranged through the horizontal box, the transmission shaft is arranged vertically in the vertical box, the input shaft is connected with a gear I on the left side, the gear I is meshed and connected with an external input gear, the input shaft is connected with a gear II on the right side, the gear II is meshed and connected with a gear III on the top of the transmission shaft, the transmission shaft is provided with a gear IV at the bottom, and the gear IV is meshed and connected with a gear V provided on the output shaft. The utility model has a simple structure, is easy to maintain, and the fling knife is at a lower position, so the harvesting effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of power transmission, in particular to a split cutter transmission box. Background Art

[0002] my country has a vast territory, especially in the Northeast, where the utilization rate of straw is getting lower and lower, environmental protection issues are prominent, and straw burning is prohibited, resulting in straw returning to the field occupying an important position. Major OEMs pay more attention to the research and development of cutter with bottom knife. In view of the above situation, the market demand for lower cutter and cutter gear box is becoming increasingly prominent. In response to market demand, it has become a top priority for harvesters to develop a lower cutter and cutter gear box with high reliability that is suitable for the Northeast. After searching, the Chinese patent with publication number CN205136489U discloses a combine harvester and its transmission box, which includes a box body, a first transmission shaft, a second transmission shaft, a third transmission shaft, a first driving gear, a first passive gear, a second driving gear set, a second passive gear set and a speed adjustment assembly, which has a variety of transmission rate adjustment functions. The above patent structure is relatively complex, and the position of the swing knife cannot be lowered, and the harvesting effect is not good. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and provide a split cutter transmission box, which has a simple structure, is easy to maintain, has a lower blade position and a better harvesting effect.

[0004] The technical solution of the utility model is:

[0005] A split cutter transmission box comprises a box body and a transmission mechanism, wherein the transmission mechanism is arranged in the box body and comprises an input shaft, a transmission shaft and an output shaft, wherein the transmission shaft is meshed and connected with the transmission shaft and the output shaft respectively through a transmission gear, and a fling knife is fixedly connected to the output end of the output shaft.

[0006] Preferably, the box body includes a horizontal box and a vertical box, and the horizontal box and the vertical box are fixedly connected by bolts. The horizontal box of the input shaft is arranged through the horizontal box, and the transmission shaft is arranged vertically in the vertical box. The left side of the input shaft is connected with gear I, which is meshed with the external input gear. The right side of the input shaft is connected with gear II, which is meshed with gear III at the top of the transmission shaft. A gear IV is provided at the bottom of the transmission shaft, which is meshed with gear V provided on the output shaft.

[0007] Preferably, the input shaft and the transmission shaft are vertically arranged at 90 degrees, and the transmission shaft and the output shaft are vertically arranged at 90 degrees.

[0008] Preferably, the housing is provided with mounting grooves adapted to the input shaft, the transmission shaft and the output shaft, and the input shaft, the transmission shaft and the output shaft are fixed in the housing by bolts.

[0009] Preferably, the gear ratio between the input gear and gear I is 2 to 3:1.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The gear transmission design between the input shaft, transmission shaft and output shaft makes the power transmission path reasonable, reduces power loss and improves transmission efficiency; the input shaft and transmission shaft, transmission shaft and output shaft are all set vertically at 90 degrees, and the entire transmission system is reasonably laid out, effectively utilizing vertical and horizontal space. This layout not only makes the transmission box compact, but also reduces the space occupied by the equipment, making it easy to integrate into other mechanical equipment; the structure is simple and easy to maintain, and the integral design of the cutter transmission box reduces the number of independent components and reduces the failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 It is a top sectional view of the utility model.

[0015] Figure 3 It is a side sectional view of the utility model.

[0016] 1. Box body; 2. Input shaft; 3. Transmission shaft; 4. Output shaft; 5. Horizontal box; 6. Vertical box; 7. Gear I; 8. Gear II; 9. Gear III; 10. Gear IV; 11. Gear V; 12. Input gear; 13. Fling knife. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0018] Example

[0019] like Figure 1-3As shown, this embodiment provides a split cutter transmission box, including a box body 1 and a transmission mechanism, the transmission mechanism is arranged in the box body 1, the transmission mechanism includes an input shaft 2, a transmission shaft 3 and an output shaft 4, the transmission shaft 3 is respectively meshed and connected with the transmission shaft 3 and the output shaft 4 through a transmission gear, and the output end of the output shaft 4 is fixedly connected with a fling knife 13.

[0020] Preferably, the box body 1 includes a horizontal box 5 and a vertical box 6, which are fixedly connected by bolts. The input shaft 2 and the horizontal box 5 are arranged in the horizontal box 5, and the transmission shaft 3 is arranged vertically in the vertical box 6. The left side of the input shaft 2 is connected with a gear I7, which is meshed with the external input gear 12. The right side of the input shaft 2 is connected with a gear II8, which is meshed with the gear III9 at the top of the transmission shaft 3. The bottom of the transmission shaft 3 is provided with a gear IV10, which is meshed with the gear V11 provided on the output shaft 4. Gear I7, gear III9, gear IV10, and gear V11 are all gears with a specification of 14 teeth, gear II8 is a gear with a specification of 17 teeth, and the number of teeth of the input gear 12 is 21.

[0021] Preferably, the input shaft 2 and the transmission shaft 3 are vertically arranged at 90 degrees, and the transmission shaft 3 and the output shaft 4 are vertically arranged at 90 degrees.

[0022] Preferably, the housing 1 is provided with mounting grooves adapted to the input shaft 2 , the transmission shaft 3 and the output shaft 4 , and the input shaft 2 , the transmission shaft 3 and the output shaft 4 are fixed in the housing 1 by bolts.

[0023] Preferably, the gear ratio between the input gear 12 and the gear I7 is 2 to 3:1.

[0024] Working principle: During use, the input gear 12 is meshed and connected with gear I7. The rotation of the input gear 12 drives the input shaft 2 to rotate. The gear number ratio of the input gear 12 to the gear I7 is 3:2. The rotation of the input gear 12 will drive the input shaft 2 to rotate. Due to the different number of teeth, the input shaft 2 speeds up. Similarly, the gear number ratio of gear II8 to gear III9 is ​​17:14. The speed of the transmission shaft 3 is further increased relative to the input shaft 2. Finally, the transmission shaft 3 drives the output shaft 4 to rotate, realizing the output of the swing knife. Since the input shaft 2 and the transmission shaft 3 are vertically arranged at 90 degrees, and the transmission shaft 3 and the output shaft 4 are vertically arranged at 90 degrees, the swing knife 13 can finally be rotated at a lower position, and the harvesting effect is better.

[0025] Although the utility model is described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the utility model is not limited thereto. Without departing from the spirit and essence of the utility model, ordinary technicians in the field can make various equivalent modifications or substitutions to the embodiments of the utility model, and these modifications or substitutions should be within the scope of the utility model / any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A split cutter transmission box, characterized in that: The invention comprises a housing (1) and a transmission mechanism, wherein the transmission mechanism is arranged in the housing (1), and the transmission mechanism comprises an input shaft (2), a transmission shaft (3) and an output shaft (4), wherein the transmission shaft (3) is meshedly connected with the transmission shaft (3) and the output shaft (4) through a transmission gear, and a fling knife (13) is fixedly connected to the output end of the output shaft (4).

2. A split cutter transmission box as claimed in claim 1, characterized in that: The box body (1) comprises a horizontal box (5) and a vertical box (6), the horizontal box (5) and the vertical box (6) are fixedly connected by bolts, the input shaft (2) is arranged in the horizontal box (5) through the horizontal box (5), the transmission shaft (3) is arranged vertically in the vertical box (6), the left side of the input shaft (2) is connected with a gear I (7), the gear I (7) is meshed with an external input gear (12), the right side of the input shaft (2) is connected with a gear II (8), the gear II (8) is meshed with a gear III (9) at the top of the transmission shaft (3), the bottom of the transmission shaft (3) is provided with a gear IV (10), the gear IV (10) is meshed with a gear V (11) provided on the output shaft (4).

3. A split cutter transmission box as claimed in claim 1, characterized in that: The input shaft (2) and the transmission shaft (3) are arranged vertically at 90 degrees, and the transmission shaft (3) and the output shaft (4) are arranged vertically at 90 degrees.

4. A split cutter transmission box as claimed in claim 1, characterized in that: The housing (1) is provided with mounting grooves adapted to the input shaft (2), the transmission shaft (3) and the output shaft (4); the input shaft (2), the transmission shaft (3) and the output shaft (4) are fixed in the housing (1) by bolts.

5. A split cutter transmission box as claimed in claim 2, characterized in that: The gear ratio between the input gear (12) and the gear I (7) is 2 to 3:1.

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