A kind of ear picking roller structure with adjustable gap

Abstract

The utility model discloses a gap-adjustable ear-picking roller structure, which comprises a transmission case body, a side plate is arranged at the left end of the transmission case body, a connecting plate is connected to the edge of the side plate, a sliding groove is arranged on the front end face of the transmission case body, a sliding plate is slidably arranged on the inner side of the sliding groove, a top plate is connected to the left end face of the sliding plate, two symmetrically distributed light holes are arranged on the connecting plate, and tensioning bolts are arranged on the inner sides of the light holes, the tail of the tensioning bolt is threadedly connected to the top plate, a threaded hole is arranged on the connecting plate, and a top screw is threadedly connected to the inner side of the threaded hole, the tail of the top screw is tightly arranged against the end face of the top plate, a second driven shaft is rotatably arranged on the sliding plate through a bearing, and a second roller is connected to the end of the second driven shaft. The utility model realizes the function of being able to adjust the gap of the ear-picking roller by bolts and having wide applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of corn harvesters, in particular to an ear picking roller structure with adjustable gap. Background Art

[0002] The corn harvester includes ear picking rollers, also called ear pulling rollers, which are used to remove corn cobs from the stalks and transport them to the peeling stage during the operation of the equipment. The ear picking rollers are usually used in pairs, and the two rollers are transmitted through gears inside the transmission box. The characteristics of gear transmission determine that the distance between the two ear picking rollers cannot be adjusted, because the axis of the ear picking roller cannot move under gear transmission, and the gap cannot be adjusted. The operation can only be carried out using the roller gap determined during assembly, and the gap between the ear picking rollers cannot be adjusted according to the needs of the harvesting operation.

[0003] Therefore, designing a structure that can adjust the gap between the ear picking rollers by bolts and has wide applicability is exactly the problem that the inventor wants to solve. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an ear picking roller structure with adjustable gap, which can realize the function of adjusting the gap of the ear picking roller by bolts and has a wide range of applicability.

[0005] The technical scheme adopted by the utility model device is: a gap adjustable ear picking roller structure, which includes a transmission box body, a side plate is arranged at the left end of the transmission box body, a connecting plate is connected to the edge of the side plate, a slide groove is arranged on the front end surface of the transmission box body, a sliding plate is slidably arranged inside the slide groove, a top plate is connected to the left end surface of the sliding plate, two symmetrically distributed light holes are arranged on the connecting plate, and a tension bolt is arranged inside the light hole, the tail of the tension bolt is threadedly connected to the top plate, a threaded hole is arranged on the connecting plate, and a top screw is threadedly connected inside the threaded hole, and the tail of the top screw is tightly arranged with the end surface of the top plate, a second driven shaft is rotatably arranged on the sliding plate through a bearing, and the end of the second driven shaft is connected to a second roller, a first driven shaft is rotatably arranged on the side wall of the transmission box body through a bearing, and the end of the first driven shaft is connected to a first roller, a fourth sprocket is arranged on the outer side of the second driven shaft and the inner side of the transmission box body, a third sprocket is arranged on the outer side of the first driven shaft and the inner side of the transmission box body, and the bottom side wall of the inner side of the transmission box body The transmission box body is provided with a second support, the second support is rotatably connected to the second sprocket through a pin shaft, the inner side wall of the right part of the transmission case is connected to a guide rod, the outer side of the guide rod is slidably provided with a guide sleeve, and the guide sleeve is connected to the first support through a connecting block, the first support is rotatably connected to the first sprocket through the pin shaft, the end of the first support is provided with a mounting hole and the inner side of the mounting hole is connected with a tension spring, the tail of the tension spring is connected to the inner wall of the transmission case body through a spring seat, the first sprocket, the second sprocket, the third sprocket and the fourth sprocket are transmission-connected by a transmission chain, the main transmission shaft is rotatably provided on the inner side of the side wall of the right end of the transmission case body through a supporting bearing seat, the right end of the main transmission shaft is connected to a pulley, the outer side of the left part of the main transmission shaft is connected to a second bevel tooth, the second bevel tooth is meshed with a first bevel tooth, the first bevel tooth is rotatably provided with a transmission case body through a bearing and a pin shaft, the side surface of the first bevel tooth and the outer side of the pin shaft are connected with a first gear, the first gear is meshed with a second gear, and the second gear is connected to the outer side of the first driven shaft.

[0006] Furthermore, the left end of the main transmission shaft, the end of the first driven shaft, and the outer side of the end of the pin shaft connected to the first bevel gear are all provided with end support frames through bearings, and the end support frames are connected to the outer side wall of the transmission box through bolts.

[0007] Furthermore, the guide rod and the guide sleeve always maintain a sliding fit.

[0008] Furthermore, the tension spring is normally in a tensioned state.

[0009] Furthermore, the transmission chain passes over the third sprocket from above and passes over the fourth sprocket from below, and the transmission directions of the fourth sprocket and the third sprocket are opposite.

[0010] Furthermore, both upper and lower side edges of the sliding plate are provided with clamping grooves matched with the edges of the sliding slots, and the clamping grooves are slidably matched with the edges of the sliding slots.

[0011] Furthermore, the width of the sliding plate is greater than the width of the sliding groove, and the right end of the sliding plate always covers the range of the sliding groove.

[0012] Furthermore, the left end of the sliding plate is arranged on the inner side of the connecting plate, and a strip-shaped slot passing through the sliding plate is opened on the end surface of the connecting plate.

[0013] The beneficial effects of the utility model device are:

[0014] 1. The utility model adopts a movable sliding plate to carry the second driven shaft, and cooperates with the first sprocket that can elastically change its position to adjust the tension of the transmission chain, so that the position of the second driven shaft can be adjusted by adjusting the bolts without disassembling and reinstalling the machine, thereby adjusting the gap between the two rollers, and realizing the function of being able to adjust the gap between the ear picking rollers by bolts, which has a wide range of applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural view of the utility model.

[0016] Figure 2 This is a view of the internal structure of the utility model.

[0017] Explanation of the reference numerals: 1-transmission housing; 2-side plate; 3-first roller; 4-second roller; 5-sliding plate; 6-slide groove; 7-card groove; 8-top plate; 9-connecting plate; 10-tension bolt; 11-top screw; 12-end support frame; 13-support bearing seat; 14-main transmission shaft; 15-pulley; 16-guide rod; 17-guide sleeve; 18-tension spring; 19-first support; 20-connecting block; 21-first sprocket; 22-transmission chain; 23-first bevel tooth; 24-second bevel tooth; 25-second gear; 26-third sprocket; 27-first driven shaft; 28-fourth sprocket; 29-second sprocket; 30-second support. DETAILED DESCRIPTION

[0018] The following is a further description of the present invention in conjunction with specific embodiments. These embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to the application.

[0019] See also Figures 1 to 2This is a structural view and an internal structure view of the utility model, which is a gap-adjustable ear-picking roller structure, which includes a transmission box body 1, a side plate 2 is arranged at the left end of the transmission box body 1, a connecting plate 9 is connected to the edge of the side plate 2, a slide groove 6 is provided on the front end face of the transmission box body 1, a sliding plate 5 is slidably arranged inside the slide groove 6, a top plate 8 is connected to the left end face of the sliding plate 5, two symmetrically distributed light holes are provided on the connecting plate 9, and a tensioning bolt 10 is provided inside the light hole, the tail of the tensioning bolt 10 is threadedly connected to the top plate 8, a threaded hole is provided on the connecting plate 9, and a top screw 11 is threadedly connected inside the threaded hole, and the tail of the top screw 11 is tightly arranged against the end face of the top plate 8, and the sliding plate 5 is tightened by the structure of two tensioning bolts 10 and one top screw 11 cooperating with each other, and the sliding plate 5 is controlled to move to the left by loosening the top screw 11 and tightening the tensioning bolt at the same time, and vice versa. When the tension bolt 10 is opened and the top screw 11 is tightened, the sliding plate 5 can be controlled to move to the right. The upper and lower edges of the sliding plate 5 are provided with a slot 7 that matches the edge of the slide groove 6. The slot 7 slidably matches the edge of the slide groove 6, and a smooth slide strip structure is provided at the matching position of the edge of the slide groove 6 and the slot 7. The width of the sliding plate 5 is greater than the width of the slide groove 6. The size of the sliding plate 5 is designed to be larger than the slide groove 6, which is conducive to ensuring that the slide groove 6 will not be easily exposed when the sliding plate 5 slides, preventing corn stalk debris, corn husks and other debris from entering the transmission box 1. The right end of the sliding plate 5 always covers the range of the slide groove 6, and the left end of the sliding plate 5 is arranged on the inner side of the connecting plate 9. A strip slot that passes through the sliding plate 5 is provided on the end surface of the connecting plate 9. When the tension bolt 10 is tightened and the top screw 11 is loosened, the end of the sliding plate 5 will pass through the strip slot provided on the connecting plate 9.

[0020] A second driven shaft is rotatably provided on the sliding plate 5 through a bearing, and a second roller 4 is connected to the end of the second driven shaft. A first driven shaft 27 is rotatably provided on the side wall of the transmission case 1 through a bearing, and a first roller 3 is connected to the end of the first driven shaft 27. A fourth sprocket 28 is provided on the outer side of the second driven shaft and the inner side of the transmission case 1, and a third sprocket 26 is provided on the outer side of the first driven shaft 27 and the inner side of the transmission case 1. A second support 30 is provided on the bottom side wall of the inner side of the transmission case 1, and the second support 30 is rotatably connected to the second sprocket 29 through a pin shaft. A guide rod 16 is connected to the inner side wall of the right part of the transmission case 1, and a guide sleeve 17 is slidably provided on the outer side of the guide rod 16. The guide sleeve 17 is connected to the first support 19 through a connecting block 20, and the first support 19 is rotatably connected to the first sprocket 21 through a pin shaft. A mounting hole is opened at the end of the first support 19, and a tension spring 18 is connected to the inner side of the mounting hole. The tension spring The tail of 18 is connected to the inner wall of the transmission box 1 through a spring seat, and the first sprocket 21, the second sprocket 29, the third sprocket 26, and the fourth sprocket 28 are connected through a transmission chain 22. The transmission chain 22 bypasses from above the third sprocket 26 and from below the fourth sprocket 28. The transmission directions of the fourth sprocket 28 and the third sprocket 26 are opposite. The guide rod 16 and the guide sleeve 17 always maintain a sliding fit. The tension spring 18 is in a tensioned state under normal conditions. The second sprocket 29, as a guide sprocket, also has a tensioning function. The first sprocket 21 mainly provides a tensioning force that can be elastically changed according to the characteristics of the spring, thereby adjusting the tightness of the transmission chain 22 when the position of the fourth sprocket 28 changes. The transmission chain 22 bypasses from below the fourth sprocket 28, so that the third sprocket 26 and the fourth sprocket 28 have opposite rotation directions, thereby ensuring that the two rollers have opposite rotation directions.

[0021] A main transmission shaft 14 is rotatably provided on the inner side of the side wall at the right end of the transmission case 1 through a supporting bearing seat 13, a pulley 15 is connected to the right end of the main transmission shaft 14, and a second bevel gear 24 is connected to the outer side of the left portion of the main transmission shaft 14, and the second bevel gear 24 is meshed with a first bevel gear 23. Power is transmitted through the pulley 15, so that the main transmission shaft 14 drives the second bevel gear 24 to rotate, thereby rotating the first bevel gear 23, and the first bevel gear 23 is rotatably provided with the transmission case 1 through a bearing and a pin shaft, and a first gear is connected to the side surface of the first bevel gear 23 and the outer side of the pin shaft, and a second gear 25 is meshed with the first gear, and the second gear 25 is connected to the outer side of the first driven shaft 27, and the first bevel gear 23 transmits power to the second gear 25 through the first gear, thereby driving the first driven shaft 27 to rotate.

[0022] The left end of the main transmission shaft 14, the end of the first driven shaft 27, and the outer side of the pin end connected to the first bevel gear 23 are all provided with an end support frame 12 through bearings, and the end support frame 12 is connected to the outer side wall of the transmission box 1 through bolts.

[0023] The transmission components inside the transmission housing 1 do not contact or interfere with each other except for the components having a transmission relationship.

[0024] The utility model adopts a movable sliding plate 5 to carry the second driven shaft, and cooperates with the first sprocket 21 that can elastically change its position to adjust the tension of the transmission chain 22, so that the position of the second driven shaft can be adjusted by adjusting bolts without disassembling and reinstalling the machine, thereby adjusting the gap between the two rollers, and realizing the function of being able to adjust the gap between the ear picking rollers by bolts, which has a wide range of applicability.

Claims

1. A gap-adjustable ear-picking roller structure, characterized in that: The invention comprises a transmission housing (1), wherein a side plate (2) is arranged at the left end of the transmission housing (1), a connecting plate (9) is connected to the edge of the side plate (2), a slide groove (6) is arranged on the front end surface of the transmission housing (1), a sliding plate (5) is slidably arranged inside the slide groove (6), a top plate (8) is connected to the left end surface of the sliding plate (5), two symmetrically distributed light holes are arranged on the connecting plate (9), and a tensioning bolt (10) is arranged inside the light hole, the tail of the tensioning bolt (10) is threadedly connected to the top plate (8), a threaded hole is arranged on the connecting plate (9), and a top screw (11) is threadedly connected inside the threaded hole, and the tail of the top screw (11) is connected to the top plate ( The end surface of the transmission case (8) is tightly arranged, a second driven shaft is rotatably arranged on the sliding plate (5) through a bearing, the end of the second driven shaft is connected to a second roller (4), a first driven shaft (27) is rotatably arranged on the side wall of the transmission case (1) through a bearing, the end of the first driven shaft (27) is connected to a first roller (3), a fourth sprocket (28) is arranged on the outer side of the second driven shaft and the inner side of the transmission case (1), a third sprocket (26) is arranged on the outer side of the first driven shaft (27) and the inner side of the transmission case (1), a second support (30) is rotatably connected to the second sprocket (26) through a pin shaft, and a second support (30) is rotatably connected to the second sprocket (26) through a pin shaft. The transmission case (1) is provided with a guide rod (16) connected to the inner side wall of the right part, and a guide sleeve (17) is slidably arranged on the outer side of the guide rod (16). The guide sleeve (17) is connected to a first support (19) through a connecting block (20). The first support (19) is rotatably connected to a first sprocket (21) through a pin shaft. A mounting hole is formed at the end of the first support (19) and a tension spring (18) is connected to the inner side of the mounting hole. The tail of the tension spring (18) is connected to the inner wall of the transmission case (1) through a spring seat. The first sprocket (21), the second sprocket (29), the third sprocket (26) and the fourth sprocket (28) are connected by a transmission chain. (22) for transmission connection, a main transmission shaft (14) is rotatably arranged on the inner side of the side wall at the right end of the transmission housing (1) through a supporting bearing seat (13), the right end of the main transmission shaft (14) is connected to a pulley (15), the left outer side of the main transmission shaft (14) is connected to a second bevel tooth (24), the second bevel tooth (24) is meshed with a first bevel tooth (23), the first bevel tooth (23) is rotatably arranged with the transmission housing (1) through a bearing and a pin shaft, a first gear is connected to the side surface of the first bevel tooth (23) and the outer side of the pin shaft, the first gear is meshed with a second gear (25), and the second gear (25) is connected to the outer side of the first driven shaft (27).

2. The gap-adjustable ear picking roller structure according to claim 1, characterized in that: The left end of the main transmission shaft (14), the end of the first driven shaft (27), and the outer side of the end of the pin shaft connected to the first bevel gear (23) are all provided with an end support frame (12) via bearings, and the end support frame (12) is connected to the outer side wall of the transmission housing (1) via bolts.

3. The gap-adjustable ear picking roller structure according to claim 1, characterized in that: The guide rod (16) and the guide sleeve (17) always maintain a sliding fit.

4. The gap-adjustable ear picking roller structure according to claim 1, characterized in that: The tension spring (18) is normally in a tensioned state.

5. The gap-adjustable ear picking roller structure according to claim 1, characterized in that: The transmission chain (22) passes over the top of the third sprocket (26) and passes under the fourth sprocket (28), and the transmission directions of the fourth sprocket (28) and the third sprocket (26) are opposite.

6. The gap-adjustable ear picking roller structure according to claim 1, characterized in that: The upper and lower edges of the sliding plate (5) are both provided with a clamping groove (7) that matches with the edge of the sliding groove (6), and the clamping groove (7) is slidably matched with the edge of the sliding groove (6).

7. The gap-adjustable ear picking roller structure according to claim 6, characterized in that: The width of the sliding plate (5) is greater than the width of the sliding groove (6), and the right end of the sliding plate (5) always covers the range of the sliding groove (6).

8. The gap-adjustable ear picking roller structure according to claim 7, characterized in that: The left end of the sliding plate (5) is arranged on the inner side of the connecting plate (9), and a strip-shaped slot passing through the sliding plate (5) is provided on the end surface of the connecting plate (9).

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