Threshing structure and harvester

Abstract

The invention relates to the technical field of harvesters, and discloses a threshing structure and a harvester, the threshing structure comprises a threshing cylinder, the outer wall of the threshing cylinder is sleeved with two half concave plates, and the two ends of the two half concave plates are both provided with rotating rings. By arranging two half concave plates and a rotating ring, the half concave plates can be erected and fixed, so that the two half concave plates can be combined into an annular concave plate, then by arranging a supporting rod, a first gear, a second gear and the like to be used in cooperation, when the threshing roller rotates to conduct threshing, the rotating threshing roller drives the second gear to rotate, and therefore the threshing effect is improved. A rotating second gear drives a rotating shaft to rotate, the rotating shaft drives a first gear to rotate, and the rotating first gear drives a rotating ring and two half concave plates to rotate, so that when rice is driven by the threshing cylinder to collide with the half concave plates, the half concave plates can be uniformly collided and rubbed; and therefore, the problem of over-frequency replacement of the semi-concave plate due to non-uniform friction is avoided, and waste is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of harvesters, in particular to a threshing structure and a harvester. Background Art

[0002] The threshing structure of the harvester includes a threshing drum and a concave plate. When the harvester is working, when the rice enters the concave plate, the threshing drum rotates, and the rotating threshing drum drives the rice to rotate in the concave plate, so that the rice grains collide with the concave plate, and then the rice grains are separated from the straw. After being separated from the straw, the rice grains and the broken straw fall through the concave plate and are then separated by air.

[0003] At present, the concave plate of the harvester is generally semicircular and fixed under the threshing drum. When the harvester is working, the threshing drum rotates in a certain direction. The threshing drum rotating in the fixed direction drives the rice to collide with the concave plate. The part of the concave plate that first collides with the rice grains will be worn more seriously, so that after the concave plate has been used for a period of time, one side of the concave plate will be worn very smooth. The overly smooth concave plate affects the effect of rice collision threshing, while the part on the other side of the concave plate is less worn. If one side of the concave plate is severely worn, it is too wasteful to directly replace the concave plate. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a threshing structure and a harvester, so that the service life of the concave plate is increased.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A threshing structure comprises a threshing drum, the outer wall of the threshing drum is sleeved with two semi-concave plates, both ends of the two semi-concave plates are provided with swivels, and one side of the semi-concave plates is provided with bolts, one end of the bolts penetrates the semi-concave plates and is threadedly connected to the swivels, the inner wall of the swivel is rotatably connected with a fixing ring, and the inner wall of the fixing ring is fixedly connected with a support rod, one end of the support rod is rotatably connected to the threshing drum, a cavity is opened in one of the support rods, and a rotating shaft is provided in the cavity, one end of the rotating shaft is fixedly connected with a first gear, the outer wall of the threshing drum is fixedly sleeved with a second gear, and the second gear is meshed with the first gear, the inner wall of the swivel is fixedly connected with a third gear, and a side wall of one side of the third gear is meshed with a fourth gear, one end of the rotating shaft penetrates the fixing ring and is fixedly connected with the fourth gear, and a cleaning mechanism is provided between the two fixing rings.

[0007] Preferably, the cleaning mechanism includes a strip rod arranged between two fixed rings, and a cavity is opened inside the strip rod, a connecting shaft is arranged in the cavity, and a plug rod is fixedly connected to a side wall of one side of the connecting shaft, one end of the plug rod passes through the strip rod, and a driving connection assembly is arranged in the cavity.

[0008] Preferably, the driving connection assembly includes two rotating rods rotatably connected to the inner wall of the cavity, and the outer wall of the rotating rod is fixedly sleeved with a sleeve, one end of the sleeve passes through the connecting shaft, a guide groove is opened on the circumference of the sleeve, and a protrusion is arranged in the guide groove, the protrusion is fixedly connected to the connecting shaft, one end of the rotating rod passes through the cavity and extends to the outside of the cavity, one end of the rotating rod located outside the cavity is fixedly connected to the fifth gear, one side wall of the two semi-concave plates is fixedly connected to the half gear, and the fifth gear is meshed with the half gear.

[0009] Preferably, a shaft is provided between the two fixed rings, and the shaft is rotatably connected to the fixed ring, a soft whip is fixedly connected to the outer wall of the shaft, a sixth gear is fixedly provided on the outer wall of the shaft, a plurality of teeth are fixedly connected to the outer wall of the rotating ring, and the teeth are meshed with the sixth gear.

[0010] Preferably, the two semi-concave plates can be spliced ​​into a circular concave plate, and the two half gears can be spliced ​​into a full gear.

[0011] Preferably, the guide groove formed on the outer wall of the sleeve is composed of a semi-annular groove and a V-shaped groove, and the guide groove can guide the protrusion to move back and forth when the sleeve rotates.

[0012] Preferably, the two rotating rods are respectively distributed at two ends of the cavity.

[0013] Preferably, a fixing hole is formed on one side wall of the fixing ring.

[0014] A harvester comprises a harvester body, wherein the harvester body comprises the above-mentioned threshing structure.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention can set up a fixed semi-concave plate by setting two semi-concave plates and a rotating ring, so that the two semi-concave plates can be combined into a circular concave plate, and then by setting a support rod, a first gear and a second gear, etc. for use in coordination, when the threshing drum rotates for threshing, the rotating threshing drum drives the second gear to rotate, the rotating second gear drives the rotating shaft to rotate, the rotating shaft drives the first gear to rotate, and the rotating first gear drives the rotating ring and the two semi-concave plates to rotate, so that when the rice is driven by the threshing drum to collide with the semi-concave plates, the semi-concave plates can be uniformly collided and Friction, thereby avoiding the problem of over-frequent replacement of the semi-concave plate due to uneven friction, and no waste will be caused. When the threshing drum of the above device rotates forward, the threshing drum drives the semi-concave plate to reverse through the first gear and the second gear. In actual use, the threshing drum drives the rice to rotate forward, and the semi-concave plate is reversed. In this way, when the semi-concave plate collides with the rice, the impact force of the rice and the semi-concave plate will be increased, so that the device can thresh better. At the same time, the rotating shaft and the like are arranged in the cavity, so that when the rotating shaft and the like rotate, the straw will not be entangled, thereby ensuring the normal operation of the device.

[0017] 2. The present invention is provided with a fifth gear and a half gear for use in conjunction with each other. When the semi-concave plate rotates, the rotating semi-concave plate drives the half gear to rotate, the rotating half gear can drive the fifth gear to rotate, the rotating fifth gear can drive the rotating rod to rotate, the rotating rotating rod can drive the sleeve to rotate, the rotating sleeve can drive the convex block to move, the moving convex block can drive the connecting shaft and the plug rod to move, so that the plug rod can poke the hole on the outer wall of the semi-concave plate. If broken rice straw blocks the semi-concave plate, the plug rod can push open or loosen the broken rice straw stuck in the hole of the semi-concave plate to ensure that the rice grains can fall through the semi-concave plate. Since the half gear is fixed on the semi-concave plate, when the semi-concave plate rotates, the speed of rotation of the semi-concave plate is proportional to the speed of reciprocating movement of the plug rod. No matter whether the semi-concave plate rotates fast or slow, it can be ensured that when the plug rod moves down, one end of the plug rod can be inserted into the hole of the semi-concave plate.

[0018] 3. The present invention arranges a shaft rod and a soft whip for use together. When the swivel rotates, the rotating swivel can drive the teeth to rotate, the rotating teeth can drive the sixth gear to rotate, the rotating sixth gear can drive the shaft rod to rotate, and the rotating shaft rod drives the soft whip, so that the soft whip beats the semi-concave plate, so that the broken straw stuck in the hole of the semi-concave plate is beaten out, thereby ensuring the smoothness of the semi-concave plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional structural schematic diagram of a harvester proposed by the present invention;

[0020] Figure 2 A three-dimensional schematic diagram of a threshing structure proposed by the present invention;

[0021] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 4 A schematic cross-sectional view of a threshing structure proposed by the present invention;

[0023] Figure 5 for Figure 4 The enlarged structural diagram at B in the middle;

[0024] Figure 6 for Figure 4 The enlarged structural diagram at C in the middle;

[0025] Figure 7 This is a schematic cross-sectional structural diagram of the fixing ring proposed by the present invention;

[0026] Figure 8 It is a partial cross-sectional structural schematic diagram proposed by the present invention;

[0027] Fig. 9 for Figure 8 The enlarged structural diagram at D in the middle;

[0028] Fig.10 This is a schematic diagram of the three-dimensional structure of the sleeve proposed in the present invention.

[0029] In the figure: 1. threshing drum; 2. semi-concave plate; 3. swivel; 4. bolt; 5. fixing ring; 6. support rod; 7. cavity; 8. rotating shaft; 9. first gear; 10. second gear; 11. third gear; 12. fourth gear; 13. strip rod; 14. cavity; 15. connecting shaft; 16. plug rod; 17. rotating rod; 18. sleeve; 19. guide groove; 20. bump; 21. fifth gear; 22. half gear; 23. shaft rod; 24. soft whip; 25. sixth gear; 26. teeth; 27. fixing hole; 28. harvester body; 191. semi-annular groove; 192. V-groove. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] See also Figure 1-Figure 10A threshing structure comprises a threshing drum 1, the outer wall of the threshing drum 1 is sleeved with two semi-concave plates 2, both ends of the two semi-concave plates 2 are provided with swivels 3, and one side of the semi-concave plates 2 is provided with bolts 4, one end of the bolt 4 penetrates the semi-concave plates 2 and is threadedly connected to the swivel 3, the inner wall of the swivel 3 is rotatably connected with a fixing ring 5, and the inner wall of the fixing ring 5 is fixedly connected with a support rod 6, one end of the support rod 6 is rotatably connected to the threshing drum 1, a cavity 7 is opened inside one of the support rods 6, and a rotating shaft 8 is arranged in the cavity 7, one end of the rotating shaft 8 is fixedly connected with a first gear 9, the outer wall of the threshing drum 1 is fixedly sleeved with a second gear 10, and the second gear 10 is meshed with the first gear 9, the inner wall of the swivel 3 is fixedly connected with a third gear 11, and a fourth gear 12 is meshed on one side wall of the third gear 11, one end of the rotating shaft 8 penetrates the fixing ring 5 and is fixedly connected with the fourth gear 12, and a cleaning mechanism is arranged between the two fixing rings 5.

[0032] It can be known from the above structure that by setting two semi-concave plates 2 and the rotating ring 3, the semi-concave plates 2 can be fixedly mounted so that the two semi-concave plates 2 can be combined into a circular concave plate, and then by setting the support rod 6, the first gear 9 and the second gear 10, etc., when the threshing drum 1 rotates for threshing, the rotating threshing drum 1 drives the second gear 10 to rotate, the rotating second gear 10 drives the rotating shaft 8 to rotate, the rotating rotating shaft 8 drives the first gear 9 to rotate, and the rotating first gear 9 drives the rotating ring 3 and the two semi-concave plates 2 to rotate, so that when the rice is driven by the threshing drum 1 to collide with the semi-concave plates 2, the semi-concave plates 2 can be affected. Uniform collision and friction can avoid the problem of over-frequent replacement of the semi-concave plate 2 due to uneven friction, and will not cause waste. When the threshing drum 1 rotates forward, the threshing drum 1 drives the semi-concave plate 2 to reverse through the first gear 9 and the second gear 10. In actual use, the threshing drum 1 drives the rice to rotate forward, and the semi-concave plate 2 is reversed. In this way, when the semi-concave plate 2 collides with the rice, the impact force between the rice and the semi-concave plate 2 will be increased, so that the device can thresh better. At the same time, the rotating shaft 8 and the like are arranged in the cavity 7, so that when the rotating shaft 8 and the like rotate, they will not be entangled with straw, thereby ensuring the normal operation of the device.

[0033] Furthermore, the cleaning mechanism includes a strip rod 13 arranged between the two fixing rings 5, and a cavity 14 is opened inside the strip rod 13, a connecting shaft 15 is arranged in the cavity 14, and a plug rod 16 is fixedly connected to a side wall of one side of the connecting shaft 15, one end of the plug rod 16 passes through the strip rod 13, and a driving connection component is arranged in the cavity 14; by arranging the strip rod 13 and the plug rod 16 for use in conjunction, when the plug rod 16 moves, one end of the plug rod 16 can be inserted into the hole on the outer wall of the semi-concave plate 2 to dredge the semi-concave plate 2.

[0034] Furthermore, the driving connection assembly includes two rotating rods 17 rotatably connected to the inner wall of the cavity 14, and the outer wall of the rotating rod 17 is fixedly sleeved with a sleeve 18, one end of the sleeve 18 passes through the connecting shaft 15, a guide groove 19 is opened on the circumferential side of the sleeve 18, and a protrusion 20 is arranged in the guide groove 19, and the protrusion 20 is fixedly connected to the connecting shaft 15, one end of the rotating rod 17 passes through the cavity 14 and extends to the outside of the cavity 14, one end of the rotating rod 17 located outside the cavity 14 is fixedly connected to a fifth gear 21, and one side wall of the two semi-concave plates 2 is fixedly connected to a semi-gear 22, and the fifth gear 21 is meshed with the semi-gear 22; by setting the fifth gear 21 and the semi-gear 22 for use in combination, when the semi-concave plate 2 rotates, the rotating semi-concave plate 2 will drive the semi-gear 22 to rotate, and the rotating semi-gear 22 can bring The fifth gear 21 is driven to rotate, and the rotating fifth gear 21 can drive the rotating rod 17 to rotate, and the rotating rotating rod 17 can drive the sleeve 18 to rotate, and the rotating sleeve 18 can drive the protrusion 20 to move, and the moving protrusion 20 can drive the connecting shaft 15 and the insertion rod 16 to move, so that the insertion rod 16 can poke the hole on the outer wall of the semi-concave plate 2. If broken rice straw blocks the semi-concave plate 2, the insertion rod 16 can push open or loosen the broken rice straw stuck in the hole of the semi-concave plate 2 to ensure that the removed rice grains can fall through the semi-concave plate 2. Since the half gear 22 is fixed on the semi-concave plate 2, when the semi-concave plate 2 rotates, the speed of rotation of the semi-concave plate 2 is proportional to the reciprocating speed of the insertion rod 16. No matter whether the semi-concave plate 2 rotates fast or slow, it can be ensured that when the insertion rod 16 moves down, one end of the insertion rod 16 can be inserted into the hole of the semi-concave plate 2.

[0035] Furthermore, an axle 23 is provided between the two fixing rings 5, and the axle 23 is rotatably connected to the fixing ring 5, a soft whip 24 is fixedly connected to the outer wall of the axle 23, a sixth gear 25 is fixedly sleeved on the outer wall of the axle 23, a plurality of teeth 26 are fixedly connected to the outer wall of the rotating ring 3, and the teeth 26 are meshed with the sixth gear 25; by arranging the axle 23 and the soft whip 24 for use in conjunction with each other, when the rotating ring 3 rotates, the rotating rotating ring 3 can drive the teeth 26 to rotate, the rotating teeth 26 can drive the sixth gear 25 to rotate, the rotating sixth gear 25 can drive the axle 23 to rotate, and the rotating axle 23 drives the soft whip 24, so that the soft whip 24 beats the semi-concave plate 2, so that the broken straw that is loosely plugged in the hole of the semi-concave plate 2 is beaten out, thereby ensuring the smoothness of the semi-concave plate 2.

[0036] Furthermore, two half concave plates 2 can be spliced ​​into a circular concave plate, and two half gears 22 can be spliced ​​into a full gear; by arranging the half concave plates 2 spliced ​​into a circular concave plate, the half gears 22 on the half concave plates 2 can be spliced ​​into a full gear.

[0037] Furthermore, the guide groove 19 opened on the outer wall of the sleeve 18 is composed of a semi-annular groove 191 and a V-shaped groove 192, and the guide groove 19 can guide the protrusion 20 to move back and forth when the sleeve 18 rotates; by providing the guide groove 19 that can guide the protrusion 20 to move back and forth, when the protrusion 20 moves back and forth, the connecting shaft 15 and the insertion rod 16 can be driven to move back and forth through the protrusion 20.

[0038] Furthermore, two rotating rods 17 are respectively distributed at both ends of the cavity 14; by arranging the rotating rods 17 distributed on both sides of the cavity 14, when the rotating rods 17 rotate to drive the connecting shaft 15, the two rotating rods 17 and other structures can apply force at the same time to ensure the stability of the force on the connecting shaft 15.

[0039] Furthermore, a fixing hole 27 is provided on one side wall of the fixing ring 5. By providing the fixing hole 27, during installation, a screw can be passed through the fixing hole 27, and then one end of the screw is threadedly connected to the harvester body 28 for installation.

[0040] A harvester includes a harvester body 28, wherein the harvester body 28 includes a threshing structure.

[0041] In the present invention, when the threshing drum 1 is used, the rotating threshing drum 1 drives the second gear 10 to rotate, the rotating second gear 10 drives the rotating shaft 8 to rotate, the rotating rotating shaft 8 drives the first gear 9 to rotate, and the rotating first gear 9 drives the rotating ring 3 and the two semi-concave plates 2 to rotate, so that when the rice is driven by the threshing drum 1 to collide with the semi-concave plates 2, the semi-concave plates 2 can be uniformly collided and rubbed, thereby avoiding the problem of over-frequent replacement of the semi-concave plates 2 due to uneven friction, and no waste will be caused. In addition, when the threshing drum 1 of the above-mentioned device rotates forward, the threshing drum 1 drives the semi-concave plates 2 to reverse through the first gear 9 and the second gear 10, and in actual use, the threshing drum 1 drives the rice to rotate forward, and the semi-concave plates 2 are reversed. In this way, when the semi-concave plates 2 collide with the rice, the impact force between the rice and the semi-concave plates 2 will be increased, so that the device can thresh better.

[0042] When the semi-concave plate 2 rotates, the rotating semi-concave plate 2 drives the semi-gear 22 to rotate, the rotating semi-gear 22 can drive the fifth gear 21 to rotate, the rotating fifth gear 21 can drive the rotating rod 17 to rotate, the rotating rotating rod 17 can drive the sleeve 18 to rotate, the rotating sleeve 18 can drive the protrusion 20 to move, the moving protrusion 20 can drive the connecting shaft 15 and the insertion rod 16 to move, so that the insertion rod 16 can poke the hole on the outer wall of the semi-concave plate 2. If broken rice straw blocks the semi-concave plate 2, the insertion rod 16 can push open or loosen the broken rice straw stuck in the hole of the semi-concave plate 2 to ensure that the rice grains can fall through the semi-concave plate 2.

[0043] When the swivel 3 rotates, the rotating swivel 3 can drive the teeth 26 to rotate, the rotating teeth 26 can drive the sixth gear 25 to rotate, the rotating sixth gear 25 can drive the shaft 23 to rotate, and the rotating shaft 23 drives the soft whip 24, so that the soft whip 24 beats the semi-concave plate 2, so that the broken straw stuck in the hole of the semi-concave plate 2 is beaten out, thereby ensuring the smooth flow of the semi-concave plate 2.

[0044] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

Claims

1. A threshing structure, comprising a threshing drum (1), characterized in that: The outer wall of the threshing drum (1) is sleeved with two semi-concave plates (2), both ends of the two semi-concave plates (2) are provided with swivels (3), and one side of the semi-concave plates (2) is provided with bolts (4), one end of the bolts (4) penetrates the semi-concave plates (2) and is threadedly connected to the swivel (3), the inner wall of the swivel (3) is rotatably connected with a fixing ring (5), and the inner wall of the fixing ring (5) is fixedly connected with a support rod (6), one end of the support rod (6) is rotatably connected to the threshing drum (1), a cavity (7) is opened inside one of the support rods (6), and A rotating shaft (8) is arranged in the cavity (7), one end of the rotating shaft (8) is fixedly connected to a first gear (9), a second gear (10) is fixedly sleeved on the outer wall of the threshing drum (1), and the second gear (10) is meshed with the first gear (9), a third gear (11) is fixedly connected to the inner wall of the rotating ring (3), and a fourth gear (12) is meshed on a side wall of one side of the third gear (11), one end of the rotating shaft (8) passes through the fixing ring (5) and is fixedly connected to the fourth gear (12), and a cleaning mechanism is arranged between the two fixing rings (5).

2. A threshing structure according to claim 1, characterized in that: The cleaning mechanism comprises a strip rod (13) arranged between two fixing rings (5), and a cavity (14) is provided inside the strip rod (13), a connecting shaft (15) is provided in the cavity (14), and a plug rod (16) is fixedly connected to a side wall of one side of the connecting shaft (15), one end of the plug rod (16) passes through the strip rod (13), and a driving connection component is provided in the cavity (14).

3. A threshing structure according to claim 2, characterized in that: The driving connection assembly comprises two rotating rods (17) rotatably connected to the inner wall of the cavity (14), and a sleeve (18) is fixedly sleeved on the outer wall of the rotating rod (17), one end of the sleeve (18) passes through the connecting shaft (15), a guide groove (19) is provided on the peripheral side of the sleeve (18), and a convex block (20) is provided in the guide groove (19), and the convex block (20) is fixedly connected to the connecting shaft (15), one end of the rotating rod (17) passes through the cavity (14) and extends to the outside of the cavity (14), one end of the rotating rod (17) located outside the cavity (14) is fixedly connected to a fifth gear (21), and one side wall of each of the two semi-concave plates (2) is fixedly connected to a half gear (22), and the fifth gear (21) meshes with the half gear (22).

4. A threshing structure according to claim 1, 2 or 3, characterized in that: A shaft (23) is arranged between the two fixing rings (5), and the shaft (23) is rotatably connected to the fixing ring (5); a soft whip (24) is fixedly connected to the outer wall of the shaft (23); a sixth gear (25) is fixedly sleeved on the outer wall of the shaft (23); a plurality of teeth (26) are fixedly connected to the outer wall of the rotating ring (3), and the teeth (26) are meshed with the sixth gear (25).

5. A threshing structure according to claim 3, characterized in that: The two semi-concave plates (2) can be spliced ​​together to form a circular concave plate, and the two half gears (22) can be spliced ​​together to form a full gear.

6. A threshing structure according to claim 3 or 5, characterized in that: The guide groove (19) formed on the outer wall of the sleeve (18) is composed of a semi-annular groove (191) and a V-shaped groove (192). When the sleeve (18) rotates, the guide groove (19) can guide the protrusion (20) to move back and forth.

7. A threshing structure according to claim 3 or 5, characterized in that: The two rotating rods (17) are respectively distributed at two ends of the cavity (14).

8. A threshing structure according to claim 1, 2, 3 or 5, characterized in that: A fixing hole (27) is provided on one side wall of the fixing ring (5).

9. A harvester, comprising a harvester body (28), characterized in that: The harvester body (28) comprises the threshing structure according to any one of the above claims.

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