A rice thresher

Abstract

The utility model provides a kind of rice thresher, including base, the rack being arranged on base, the threshing roller being arranged in rack and the driven pulley being connected with threshing roller, further include power mechanism, the power mechanism includes transmission connection's internal combustion engine and speed reducer, the output shaft of the speed reducer is connected with driving pulley, and driven pulley is driven by belt, the power mechanism is fixed in mobile seat, the mobile seat can be moved back and forth relative to rack and between the two mobile positioning structure is equipped, to realize the moderate tightness of belt;The utility model structure design is reasonable, can be moved seat and the relative position between rack is adjusted, and then realize the moderate tightness of belt, adjustment range is big, and transmission is stable between driven pulley and driving pulley, and it is not easy to jump.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rice thresher. BACKGROUND

[0002] The rice thresher is a kind of agricultural equipment for separating rice and stem leaves. The belt between the driving pulley and driven pulley in the existing rice thresher moves up and down through the tensioner to adjust the tightness of the belt. However, the adjustment range of the tensioner is small and the position is unstable, which is prone to jumping. Therefore, the prior art needs to be improved and developed. SUMMARY

[0003] In view of the above problems, the utility model provides a rice thresher.

[0004] To achieve the above purpose, the utility model provides a rice thresher, which comprises a base, a rack arranged on the base, a threshing roller arranged in the rack, and a driven pulley connected with the threshing roller. The utility model also comprises a power mechanism, which comprises an internal combustion engine and a speed reducer connected in transmission. The output shaft of the speed reducer is connected with a driving pulley, and the driving pulley drives the driven pulley through a belt. The power mechanism is fixed on a moving seat. The moving seat can move back and forth relative to the rack, and a moving positioning structure is arranged between the moving seat and the rack to achieve moderate tightness of the belt.

[0005] Further, the rack is divided into a front rack part and a rear rack part. The moving positioning structure comprises a first base plate, a second base plate, a bolt and a nut. The first base plate is symmetrically fixed on both sides of the front rack part. The first base plate is provided with a plurality of waist-shaped holes. The second base plate is provided with two corresponding holes above the first base plate and is fixedly connected with the moving seat. The bolt penetrates the second base plate and the waist-shaped hole and can slide along the waist-shaped hole. The nut is screwed on the end of the bolt to fix the first base plate and the second base plate.

[0006] Further, the inner side of both ends of the second base plate is fixedly provided with an adjusting structure one. The adjusting structure one comprises an adjusting seat one, an adjusting bolt one and a locking nut one. The adjusting seat one is fixedly connected with the second base plate or the moving seat. The adjusting bolt one is threadedly connected with the adjusting seat one, and the end thereof abuts against the outer wall surface of the rear rack part. The locking nut one is sleeved outside the adjusting bolt one to lock the relative position of the adjusting bolt one and the adjusting seat one.

[0007] Further, the speed reducer is detachably fixed on the moving seat through a lifting frame. The inner side of both ends of the lifting frame is fixedly provided with an adjusting structure two. The adjusting structure two comprises an adjusting seat two, an adjusting bolt two and a locking nut two. The adjusting seat two is fixedly connected with the lifting frame. The adjusting bolt two is threadedly connected with the adjusting seat two, and the end thereof abuts against the outer wall surface of the rear rack part. The locking nut two is sleeved outside the adjusting bolt two to lock the relative position of the adjusting bolt two and the adjusting seat two.

[0008] Further, the front frame part is detachably provided with a protective cover, and the protective cover is provided with a filling opening corresponding to the internal combustion engine and a soft cover corresponding to the filling opening.

[0009] Further, the rear frame part is an up-down opening structure, and the rear frame part is inwardly inclined at a position corresponding to the threshing roller, and the base is provided with a collecting box opposite to the up-down opening of the rear frame part.

[0010] Further, the rear frame part is further provided with a detachable valley blocking cover.

[0011] Further, the base is provided with a moving assembly below, and the moving assembly comprises a plurality of universal wheels.

[0012] The utility model discloses relative to prior art beneficial effect is: the utility model discloses structure design is reasonable, and the relative position between mobile seat and rack can be adjusted, and then the tightness of the belt is moderate, and the adjustment range is big, and the transmission between driven pulley and driving pulley is stable, and it is not easy to jump. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the perspective drawing of the rice thresher (not including the protective cover) related to the scheme;

[0014] Figure 2 It is the perspective drawing of the substrate one related to the scheme;

[0015] Figure 3 It is the perspective drawing of the rice thresher (not including the moving assembly) related to the scheme. DETAILED DESCRIPTION

[0016] As Figure 1 , Figure 3 shown, a kind of rice thresher of the utility model embodiment, including base 1, moving assembly, rack 3, threshing roller 4, driven pulley 5, power mechanism 6;Wherein, moving assembly is located below base 1, and it includes multiple universal wheels 2, rack 3 is located on base 1, threshing roller 4 is located in rack 3, driven pulley 5 is connected with threshing roller 4, power mechanism 6 includes transmission connection's internal combustion engine 7 and speed reducer 8, the output shaft of speed reducer 8 is connected with driving pulley 9, and driven pulley 5 is driven by belt, power mechanism 6 is fixed on mobile seat 10, mobile seat 10 can move back and forth relative to rack 3 and the mobile positioning structure 11 between the two is equipped, to realize that the tightness of belt is moderate, adjustment range is big, transmission between driven pulley 5 and driving pulley 9 is stable, and it is not easy to jump.

[0017] Further, as Figure 1 , Figure 2 and Figure 3As shown, the rack 3 in the embodiment is divided into a front rack part 31 and a rear rack part 32, and the moving positioning structure 11 includes a base plate one 12, a base plate two 13, a bolt and a nut. The base plate one 12 is symmetrically fixed on both sides of the front rack part 31, and a plurality of waist-shaped holes 121 are arranged on the base plate one 12. The base plate two 13 is arranged above the base plate one 12 and is fixedly connected with the moving seat 10. The bolt penetrates the base plate two 13 and the waist-shaped hole 121, and the nut is screwed on the end of the bolt. Meanwhile, the inner side of both ends of the base plate two 13 is fixedly provided with an adjusting structure one 14. The adjusting structure one 14 includes an adjusting seat one 15, an adjusting bolt one 16 and a locking nut one 17. The adjusting seat one 15 is fixedly connected with the base plate two 13 or the moving seat 10. The adjusting bolt one 16 is threadedly connected with the adjusting seat one 15, and the end thereof abuts against the outer wall surface of the rear rack part 32. The locking nut one 17 is sleeved on the adjusting bolt one 16. During adjustment, the bolt slides forward and backward along the waist-shaped hole 121, and the moving seat 10 preliminarily adjusts the relative position between the base plate two 13 and the front rack part 31. Then, the tightness of the belt is finely adjusted by rotating the adjusting bolt one 16. After adjustment, the relative position between the adjusting bolt one 16 and the adjusting seat one 15 is locked by the locking nut one 17, and the relative fixation between the base plate one 12 and the base plate two 13 is realized by screwing the nut.

[0018] Further, as shown in Figure 1 , the speed reducer 8 in the embodiment is detachably fixed on the moving seat 10 through the lifting frame 18, which is convenient for maintenance and replacement in the future. Meanwhile, the inner side of both ends of the lifting frame 18 is fixedly provided with an adjusting structure two 19. The adjusting structure two 19 includes an adjusting seat two 20, an adjusting bolt two 21 and a locking nut two 22. The adjusting seat two 20 is fixedly connected with the lifting frame 18. The adjusting bolt two 21 is threadedly connected with the adjusting seat two 20, and the end thereof abuts against the outer wall surface of the rear rack part 32. The locking nut two 22 is sleeved on the adjusting bolt two 21, and is used for locking the relative position between the adjusting bolt two 21 and the adjusting seat two 20, so that the position of the lifting frame 18 is fixed when it is detached and reinstalled. The transmission cooperation between the internal combustion engine 7 and the speed reducer 8 is stable.

[0019] Further, as shown in Figure 1 , Figure 3 , the front rack part 31 in the embodiment is detachably provided with a protective cover 23. The protective cover 23 is provided with a filling opening corresponding to the internal combustion engine 7, and is provided with a soft cover 24 corresponding to the filling opening. When it is necessary to supplement fuel into the internal combustion engine 7, the soft cover 24 can be opened, and then fuel can be added into the internal combustion engine 7 through the filling opening. Meanwhile, the rear rack part 32 is an upper and lower opening structure. A detachable valley blocking cover is arranged above the rear rack part 32, which is used for avoiding the splashed grains from falling to the ground. The rear rack part 32 is inwardly inclined at the position corresponding to the threshing roller 4, which is used for facilitating the falling of rice. A collecting box 25 is arranged on the base 1, and faces the opening below the rear rack part 32, which is used for collecting the threshed rice after the threshing by the threshing roller 4.

[0020] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rice thresher comprising a base (1), a frame (3) arranged on the base (1), a threshing roller (4) arranged in the frame (3), and a driven pulley (5) connected to the threshing roller (4), characterized in that: Also include power mechanism (6), the power mechanism (6) includes transmission connection's internal combustion engine (7) and reduction machine (8), the output shaft of the reduction machine (8) is connected with driving pulley (9), and is driven by belt driven pulley (5), the power mechanism (6) is fixed on mobile seat (10), mobile seat (10) can be moved back and forth relative to frame (3) and is equipped with mobile positioning structure (11) between two, to realize the tightness of belt is moderate.

2. A rice thresher according to claim 1, characterized in that: The frame (3) is divided into front frame part (31) and rear frame part (32), the mobile positioning structure (11) includes base plate one (12), base plate two (13), bolt and nut, the base plate one (12) has two and is symmetrically fixed on both sides of the front frame part (31), the base plate one (12) is equipped with multiple waist-shaped holes (121), the base plate two (13) has two, and is respectively correspondingly arranged above the base plate one (12) and is fixedly connected with the mobile seat (10), the bolt passes through the base plate two (13) and waist-shaped hole (121), and can slide along the waist-shaped hole (121), the nut is screwed on the end of the bolt, to realize the relative fixation of the base plate one (12) and the base plate two (13).

3. A rice thresher according to claim 2, characterized in that: The inner side of both ends of the base plate two (13) is fixedly provided with adjustment structure one (14), the adjustment structure one (14) includes adjustment seat one (15), adjusting bolt one (16), locking nut one (17), the adjustment seat one (15) is fixedly connected with the base plate two (13) or the mobile seat (10), the adjusting bolt one (16) is threadedly connected with the adjustment seat one (15), and the end thereof abuts against the outer wall surface of the rear frame part (32), the locking nut one (17) is sleeved outside the adjusting bolt one (16), for locking the relative position of the adjusting bolt one (16) and the adjustment seat one (15).

4. A rice thresher according to claim 2, characterized in that: The reduction machine (8) is detachably fixed on the mobile seat (10) through the lifting frame (18), the inner side of both ends of the lifting frame (18) is fixedly provided with adjustment structure two (19), the adjustment structure two (19) includes adjustment seat two (20), adjusting bolt two (21), locking nut two (22), the adjustment seat two (20) is fixedly connected with the lifting frame (18), the adjusting bolt two (21) is threadedly connected with the adjustment seat two (20), and the end thereof abuts against the outer wall surface of the rear frame part (32), the locking nut two (22) is sleeved outside the adjusting bolt two (21), for locking the relative position of the adjusting bolt two (21) and the adjustment seat two (20).

5. A rice thresher according to any one of claims 2 to 4, characterized in that: The front frame part (31) is detachably provided with a protective cover (23), the protective cover (23) is provided with a filling port corresponding to the internal combustion engine (7), and a soft cover (24) is provided corresponding to the filling port.

6. A rice thresher according to any one of claims 2 to 4, characterized in that: The rear frame part (32) is an upper and lower opening structure, the rear frame part (32) is inclined inwardly corresponding to the threshing roller (4), the base (1) is provided with a collecting box (25) opposite to the lower opening of the rear frame part (32).

7. A rice thresher according to claim 6, characterized in that: The upper portion of the rear frame part (32) is further provided with a detachable valley blocking cover.

8. The rice thresher according to claim 1, wherein: The lower portion of the base (1) is provided with a moving assembly, the moving assembly includes a plurality of universal wheels (2).

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