Conveying mechanism of caragana microphylla shrub stumping harvester

Abstract

The utility model relates to a conveying mechanism of a caragana microphylla shrub stumping harvester. The conveying mechanism comprises a box body, a first upper grass roller, a first lower grass roller, a second upper grass roller, a second lower grass roller, a third upper grass roller, a third lower grass roller, a gearbox, a grass roller pull arm, a grass roller pull arm, a bearing assembly, a plummer block, a chain wheel, a chain wheel, a tension spring support, a tension spring and a chain. Through the structural design, in the working process of the three pairs of upper and lower straw roller sets, crops can be more effectively tiled, compacted and conveyed; and the linear speed of the three pairs of grass roller sets is increased step by step, so that the conveying amount of crops is further increased, and the crops are fed more smoothly. The floating amount of the grass feeding roller set is not smaller than 100 mm, the requirement for the large feeding amount is further met, and positive effects are achieved on solving the problems that conveying of the harvester is not smooth and material blocking occurs frequently and improving the harvesting efficiency.

Description

Technical Field

[0001] The utility model belongs to the field of forestry machinery, and in particular relates to a conveying mechanism of a Caragana shrub stubble harvester. Background Art

[0002] Caragana korshinskii is a shrub of the genus Caragana in the Leguminosae family. It is also called white-haired Caragana korshinskii. It is a large deciduous shrub forage plant of the genus Caragana in the Leguminosae family. It is mainly planted in Northwest China, North China, and the western part of Northeast China for soil and water conservation and sand fixation and afforestation. It is an excellent sand fixation and greening plant for barren hills, and a good forage.

[0003] According to the biological characteristics and agronomic requirements of Caragana shrubs, it is beneficial to grow Caragana shrubs better by cutting them every 3-5 years. At present, the dedicated Caragana shrub cutting harvester still has the problem of poor transportation after cutting Caragana shrubs and frequent blockage, which affects the operation efficiency of the whole machine. Therefore, it is very necessary to solve the problem of stability and reliability of the conveying mechanism of Caragana shrub crop cutting machine. Utility Model Content

[0004] The utility model provides a conveying mechanism for a Caragana shrub stubble harvester, and aims to solve the technical problem of frequently blocking the Caragana shrub stubble harvester and improve the operation efficiency of the Caragana shrub stubble harvester.

[0005] To solve the above technical problems, the present utility model provides a conveying mechanism for a Caragana korshinskii shrub stubble harvester, which is characterized in that it includes a box body 1, an upper first grass roller 2, a lower first grass roller 3, an upper second grass roller 4, a lower second grass roller 5, an upper third grass roller 6, a lower third grass roller 7, and a gear box 8; the lower first grass roller 3, the lower second grass roller 5, and the lower third grass roller 7 are sequentially rotatably connected to the lower part of the box body from back to front; the upper first grass roller 2, the upper second grass roller 4, and the upper third grass roller 6 are sequentially rotatably connected to the upper part of the box body from back to front; the gear box 8 is fixedly connected to one side of the box body 1; one end of the upper second grass roller 4 is rotatably connected to the box body, and the other end is connected to the input end of the gear box; both ends of the upper first grass roller 2 are respectively rotatably connected to the box body through bearing assemblies 11, and the upper first grass roller 2 can float in the card slot of the box body. Two first grass roller pulling arms 9 are respectively located on both sides of the box body. One end of each of the two first grass roller pulling arms 9 is fixedly connected to the output end of the bearing assembly at the end of the upper first grass roller 2, and the middle parts of the two first grass roller pulling arms 9 are rotatably connected to the output end of the upper second grass roller 4; the other ends of the two first grass roller pulling arms 9 are connected to the box body through tension springs; both ends of the upper third grass roller 6 are respectively rotatably connected to the box body through a bearing assembly 11, and the upper third grass roller 6 can float in the card slot of the box body. Two second grass roller pulling arms 10 are respectively located on both sides of the box body. One end of each of the two second grass roller pulling arms 10 is welded and fixed to the two bearing assemblies 11 of the upper third grass roller 6, and the middle parts of the two second grass roller pulling arms 10 are rotatably connected to the output end of the upper second grass roller 4; the other ends of the two second grass roller pulling arms 10 are connected to the box body on the same side through a tension spring 25; the connecting shaft at one end of the upper second grass roller 4 is respectively connected to the chopping device, the connecting shaft of the upper first grass roller 2, and the connecting shaft of the upper third grass roller 6 through sprockets, driving the upper first grass roller 2 and the upper third grass roller 6 to rotate; the output shaft of the gear box 8 is connected to the connecting shaft of the lower third grass roller 7 through a sprocket, the lower third grass roller 7 drives the lower first grass roller 3 to rotate through a sprocket, and the lower first grass roller 3 and the lower second grass roller 5 achieve power transmission through a sprocket.

[0006] The lower first grass roller 3, the lower second grass roller 5, and the lower third grass roller 7 are respectively connected to the box body through pedestal bearings.

[0007] The upper third grass roller 6, the upper second grass roller 4, and the upper first grass roller 2 are respectively connected to the box body through bearing assemblies.

[0008] Two tension spring brackets are respectively fixed on the upper parts of the left and right sides of the box body; the tension spring brackets are used for connecting with the tension springs on the corresponding sides.

[0009] The first grass roller pulling arm and the second grass roller pulling arm are of a V-shaped structure.

[0010] The floating amount of the upper first grass roller 2 floating upward is not less than 100 mm; the rotation directions of the upper first grass roller 2, the upper second grass roller 4, and the upper third grass roller 6 are opposite to the rotation directions of the lower first grass roller 3, the lower second grass roller 5, and the lower third grass roller 7.

[0011] The box body 1 includes a left side plate 1001, a right side plate 1002, and a positioning support 1003 fixed between the left side plate 1001 and the right side plate 1002; the left side plate 1001 and the right side plate 1002 are designed with hay roller mounting notches, and after being welded to the positioning support 1003, the coaxiality of each notch is ensured to be no greater than Φ0.5mm.

[0012] The upper hay roller 2, the lower hay roller 3, the upper second hay roller 4, the lower second hay roller 5, and the upper third hay roller 6 are all welded and composed of a hay roller shaft, a drum, and blades 2003 arranged outside the drum.

[0013] The lower third hay roller 7 is welded and composed of a hay roller shaft and a drum.

[0014] The gearbox 8 is mainly composed of a gearbox body 8001, a box cover 8002, a gear 8003, a gear shaft 8004, an end cover 8005, and a bearing end cover 8006; the gearbox body 8001 and the box cover 8002 are fixedly connected, the gear 8003 is fixedly connected to the output shaft of the upper second hay roller 4, the gear shaft 8004 is rotatably connected to the gearbox 8 through bearings and meshes with the gear 8003. When the upper second hay roller 4 rotates, it drives the gear 8003 to rotate, and while the gear 8003 rotates, it drives the gear shaft 8004 to rotate in the opposite direction.

[0015] Beneficial effects: Through the structural design of the present utility model, during the working process of the upper and lower three pairs of hay roller groups, the crops are more effectively paved, compacted, and conveyed. By gradually increasing the linear speeds of the three pairs of hay roller groups, the conveying volume of the crops is further increased, making the feeding of the crops smoother. The floating amount of the upper hay roller group not less than 100mm further meets the requirements of large feeding amounts, and has a positive effect on solving the problems of unsmooth conveying and frequent material jams of the harvester and improving the harvesting efficiency. Description of the Drawings

[0016] Figure 1 Schematic diagram of one side of the present utility model;

[0017] Figure 2 Schematic diagram of the other side of the present utility model;

[0018] Figure 3 For Figure 2 A - A view of

[0019] Figure 4 For Figure 2 B - B view of

[0020] Figure 5 Schematic diagram of the left side plate;

[0021] Figure 6 Schematic diagram of the box body structure;

[0022] Figure 7 Schematic diagram of the hay roller structure except the lower third hay roller;

[0023] Figure 8 Schematic diagram of the structure of the lower three grass rollers;

[0024] Figure 9 Schematic diagram of the gearbox structure. Specific embodiments

[0025] To make the purpose, content, and advantages of the present utility model clearer, the following further describes in detail the specific embodiments of the present utility model.

[0026] A conveying mechanism of a Caragana korshinskii stubble harvester proposed by the present utility model includes a box body 1, an upper first grass roller 2, a lower first grass roller 3, an upper second grass roller 4, a lower second grass roller 5, an upper third grass roller 6, a lower third grass roller 7, a gearbox 8, two first grass roller pull arms 9, two second grass roller pull arms 10, five bearing assemblies 11, six pedestal bearings 12, a sprocket 13, a sprocket 14, a sprocket 15, a sprocket 16, a sprocket 17, a sprocket 18, a sprocket 19, a sprocket 20, a sprocket 21, a sprocket 22, a sprocket 23, four spring support brackets 24, four springs 25, and six groups of chains 26; the first grass roller pull arms and the second grass roller pull arms are of V-shaped structures.

[0027] The lower third grass roller 7 is rotationally connected to the box body 1 through two pedestal bearings 12 and bolts. The lower second grass roller 5 is rotationally connected to the box body 1 through two pedestal bearings 12 and bolts. The lower third grass roller 7 is rotationally connected to the box body 1 through two pedestal bearings 12 and bolts. The gearbox 8 is fixedly connected to the box body 1 through bolts.

[0028] One end of the upper second grass roller 4 is rotationally connected to the box body 1 through a bearing assembly 11 and bolts, and the other end is connected to the gearbox 8 through a bearing and fixed to the box body 1. The four spring support brackets 24 are fixedly installed on the box body 1 by welding. The upper first grass roller 2 is connected to the two bearing assemblies 11. After the two first grass roller pull arms 9 are welded and fixed to the two bearing assemblies 11, they are rotationally connected to the bearing assembly 11 fixing the upper second grass roller 4 and the gearbox 8 through bearings. The other ends of the two first grass roller pull arms 9 are connected and fixed through two springs 25. When the spring 25 is stretched, the upper first grass roller 2 floats upward, and the floating amount is not less than 100 mm. The upper third grass roller 6 is connected to the two bearing assemblies 11. After the two second grass roller pull arms 10 are welded and fixed to the two bearing assemblies 11, they are rotationally connected to the bearing assembly 11 fixing the upper third grass roller 6 and the gearbox 8 through bearings. The other ends of the two second grass roller pull arms 10 are connected and fixed through two springs 25.

[0029] When the spring 25 is stretched, the upper third grass roller 6 floats upward, and the floating amount is not less than 100 mm.

[0030] The sprocket wheel 13 is fixed on the connecting shaft of the upper first straw roller 2 by a rectangular key. The sprocket wheels 14, 15 and 16 are fixed on the connecting shaft of the upper second straw roller 4 by rectangular keys. The sprocket wheel 17 is fixed on the connecting shaft of the upper third straw roller 6 by a rectangular key. The sprocket wheel 18 is fixed on the output shaft of the gearbox 8 by a rectangular key. The sprocket wheels 19 and 20 are fixed on the connecting shaft of the lower first straw roller 3 by rectangular keys. The sprocket wheel 21 is fixed on the connecting shaft of the lower second straw roller 5 by a rectangular key. The sprocket wheels 22 and 23 are fixed on the connecting shaft of the lower third straw roller 7 by rectangular keys.

[0031] The sprocket wheel 14 is connected with the sprocket of the chopping device by a chain 26. The power is transmitted to the sprocket wheel 14 through the chain 26 to drive the upper second straw roller 4 to rotate. The sprocket wheels 13 and 15 are connected by a chain 26. The power is transmitted to the sprocket wheel 13 through the chain 26 to drive the upper first straw roller 2 to rotate. The sprocket wheels 16 and 17 are connected by a chain 26. The power is transmitted to the sprocket wheel 17 through the chain 26 to drive the upper third straw roller 6 to rotate.

[0032] The sprocket wheels 18 and 23 are connected by a chain 26. After the power is reversed by the gearbox 8, it is transmitted to the sprocket wheel 23 through the chain 26 to drive the lower third straw roller 7 to rotate. The sprocket wheels 22 and 19 are connected by a chain 26. The power is transmitted to the sprocket wheel 19 through the chain 26 to drive the lower first straw roller 3 to rotate. The sprocket wheels 20 and 21 are connected by a chain 26. The power is transmitted to the sprocket wheel 21 through the chain 26 to drive the lower second straw roller 5 to rotate. The upper first straw roller 2, the upper second straw roller 4 and the upper third straw roller 6 rotate downward. The lower first straw roller 3, the lower second straw roller 5 and the lower third straw roller 7 rotate upward.

[0033] The box body 1 is mainly composed of a left side plate 1001, a right side plate 1002, a positioning support 1003, etc., which are welded together and play a role in connecting and fixing components such as the upper first straw roller 2, the lower first straw roller 3, the upper second straw roller 4, the lower second straw roller 5, the upper third straw roller 6, the lower third straw roller 7, and the gearbox 8. The left side plate 1001 and the right side plate 1002 are designed with straw roller installation notches. After being welded with the positioning support 1003, it is ensured that the coaxiality of each notch is not greater than Φ0.5mm. (See Figure 5 、 Figure 6 )

[0034] The upper first straw roller 2, the lower first straw roller 3, the upper second straw roller 4, the lower second straw roller 5, and the upper third straw roller 6 are mainly composed of a straw roller shaft 2001, a drum 2002, blades 2003, etc., which are welded together. (See Figure 7 )

[0035] The lower third straw roller 7 is mainly composed of a straw roller shaft 7001 and a drum 7002, etc., which are welded together. (See Figure 8 )

[0036] The rotation directions of the upper first straw roller 2, the upper second straw roller 4 and the upper third straw roller 6 are downward, and the rotation directions of the lower first straw roller 3, the lower second straw roller 5 and the lower third straw roller 7 are upward. The feeding and conveying of crops are realized through the relative rotation directions of the upper and lower straw roller groups.

[0037] The gearbox 8 is mainly composed of a gearbox body 8001, a box cover 8002, gears 8003, gear shafts 8004, end covers 8005 and bearing end covers 8006. The gearbox body 8001 and the box cover 8002 are connected by bolts and fixed to the box body 1. The gear 8003 is connected and fixed to the output shaft of the upper second straw roller 4 by a rectangular key in the gearbox 8. The gear shaft 8004 is connected to the gearbox 8 through bearings and meshes with the gear 8003. The end cover 8005 is connected and fixed to the box cover 8002 by bolts. The bearing end cover 8006 is connected and fixed to the box cover 8002 by bolts. When the upper second straw roller 4 rotates, it drives the gear 8003 to rotate. While the gear 8003 rotates, it drives the gear shaft 8004 to rotate in the opposite direction. (See Figure 9 )

[0038] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and deformations can be made, and these improvements and deformations should also be regarded as the protection scope of the present invention.

Claims

1. A conveying mechanism for a Caragana korshinskii shrub stubble harvester, characterized in that: It includes a box body (1), an upper first straw roller (2), a lower first straw roller (3), an upper second straw roller (4), a lower second straw roller (5), an upper third straw roller (6), a lower third straw roller (7), and a gearbox (8); the lower first straw roller (3), the lower second straw roller (5), and the lower third straw roller (7) are sequentially rotatably connected to the lower part of the box body from the back to the front; the upper first straw roller (2), the upper second straw roller (4), and the upper third straw roller (6) are sequentially rotatably connected to the upper part of the box body from the back to the front; the gearbox (8) is fixedly connected to one side of the box body (1); one end of the upper second straw roller (4) is rotatably connected to the box body, and the other end is connected to the input end of the gearbox; both ends of the upper first straw roller (2) are respectively rotatably connected to the box body through bearing assemblies (11), and the upper first straw roller (2) can float in the card slot of the box body. Two first straw roller pull arms (9) are respectively located on both sides of the box body. One end of each of the two first straw roller pull arms (9) is fixedly connected to the output end of the bearing assembly at the end of the upper first straw roller (2), and the middle of the two first straw roller pull arms (9) is rotatably connected to the output end of the upper second straw roller (4); the other ends of the two first straw roller pull arms (9) are connected to the box body through tension springs; both ends of the upper third straw roller (6) are respectively rotatably connected to the box body through a bearing assembly (11), and the upper third straw roller (6) can float in the card slot of the box body. Two second straw roller pull arms (10) are respectively located on both sides of the box body. One end of each of the two second straw roller pull arms (10) is welded and fixed to the two bearing assemblies (11) of the upper third straw roller (6), and the middle of the two second straw roller pull arms (10) is rotatably connected to the output end of the upper second straw roller (4); the other ends of the two second straw roller pull arms (10) are connected to the box body on the same side through a tension spring (25); the connecting shafts at one end of the upper second straw roller (4) are respectively connected to the chopping device, the connecting shaft of the upper first straw roller (2), and the connecting shaft of the upper third straw roller (6) through sprockets, driving the upper first straw roller (2) and the upper third straw roller (6) to rotate; the output shaft of the gearbox (8) is connected to the connecting shaft of the lower third straw roller (7) through a sprocket, the lower third straw roller (7) drives the lower first straw roller (3) to rotate through a sprocket, and the lower first straw roller (3) and the lower second straw roller (5) achieve power transmission through a sprocket.

2. The conveying mechanism of a Caragana korshinskii shrub stubble harvester according to claim 1, characterized in that: The lower first straw roller (3), the lower second straw roller (5), and the lower third straw roller (7) are respectively connected to the box body through pillow block bearings.

3. The conveying mechanism of a Caragana korshinskii shrub stubble harvester according to claim 1, characterized in that: The upper third straw roller (6), the upper second straw roller (4), and the upper first straw roller (2) are respectively connected to the box body through bearing assemblies.

4. The conveying mechanism of a Caragana korshinskii shrub stubble harvester according to claim 1, characterized in that: Two tension spring brackets are fixed to the upper parts of the left and right sides of the box body; the tension spring brackets are used to connect with the tension springs on the corresponding sides.

5. The conveying mechanism of a Caragana korshinskii shrub stubble harvester according to claim 1, characterized in that: The first straw roller pull arm and the second straw roller pull arm are of V-shaped structures.

6. The conveying mechanism of a Caragana korshinskii shrub stubble harvester according to claim 1, characterized in that: The floating amount of the upper first straw roller (2) floating upward is not less than 100 mm; the rotation directions of the upper first straw roller (2), the upper second straw roller (4), and the upper third straw roller (6) are opposite to the rotation directions of the lower first straw roller (3), the lower second straw roller (5), and the lower third straw roller (7).

7. The conveying mechanism of a Caragana korshinskii shrub stubble harvester according to claim 1, wherein: The box body (1) includes a left side plate (1001), a right side plate (1002), and a positioning support (1003) fixed between the left side plate (1001) and the right side plate (1002); the left side plate (1001) and the right side plate (1002) are designed with grass roller mounting notches, and after being welded to the positioning support (1003), the coaxiality of each notch is ensured to be not greater than Φ0.5mm.

8. The conveying mechanism of a Caragana korshinskii shrub stubble harvester according to claim 1, characterized in that: The upper first grass roller (2), the lower first grass roller (3), the upper second grass roller (4), the lower second grass roller (5), and the upper third grass roller (6) are all welded and composed of a grass roller shaft, a drum, and blades (2003) arranged outside the drum.

9. The conveying mechanism of a Caragana korshinskii shrub stubble harvester according to claim 1, characterized in that: The lower third grass roller (7) is welded and composed of a grass roller shaft and a drum.

10. A conveying mechanism of a Caragana korshinskii shrub stubble harvester according to any one of claims 1-9, characterized in that: The gearbox (8) is mainly composed of a gearbox body (8001), a box cover (8002), gears (8003), gear shafts (8004), end covers (8005), and bearing end covers (8006); the gearbox body (8001) and the box cover (8002) are fixedly connected, the gear (8003) is fixedly connected to the output shaft of the upper second grass roller (4), the gear shaft (8004) is rotatably connected to the gearbox (8) through bearings and meshes with the gear (8003). When the upper second grass roller (4) rotates, it drives the gear (8003) to rotate, and while the gear (8003) rotates, it drives the gear shaft (8004) to rotate in the opposite direction.

Images