Ear picking and straw returning transmission case with separating device

Abstract

The utility model relates to the technical field of agricultural machinery equipment, and discloses an ear picking and straw returning transmission case with a separating device, which comprises an ear picking case body and a flail knife case body, one end of the flail knife case body is provided with the separating device and a third driven shaft, the other end of the flail knife case body is communicated with the ear picking case body, a first main shaft penetrates through the ear picking case body, and a second main shaft penetrates through the first main shaft. A second main shaft is rotationally arranged in the flail knife box body, the first main shaft is connected with one end of the second main shaft through a first bevel gear set, a fourth driving bevel gear is rotationally arranged at the other end of the second main shaft, the second main shaft is movably connected with the fourth driving bevel gear through a spline housing, and the fourth driving bevel gear is connected with a third driven shaft through a fourth driven bevel gear; one end of the spline housing is connected with the separating device. According to the transmission case, synchronous operation of the ear picking box assembly and the flail knife box assembly can be guaranteed, the disengaging requirement of a user in the using process can be met, and the using effect of the transmission case is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery and equipment, in particular to an ear picking and straw returning transmission box with a separation device. Background Art

[0002] At present, due to the prohibition of straw burning for environmental protection, the utilization rate of straw is getting lower and lower, resulting in the important position of returning straw to the field. There are many kinds of existing corn harvesters, and the power transmission is also various. Most of the existing ear picking box assemblies and knife throwing box assemblies are connected to the whole machine separately, that is, the power of the whole machine drives the ear picking box assembly and the knife throwing box assembly respectively, so that the ear picking box assembly picks ears and drives the knife throwing box assembly to cut the straw for returning to the field. These two processes are independent.

[0003] There are at least the following problems in the prior art: First, due to the low precision of the welding parts of the whole machine, after the ear picking box assembly and the knife throwing box assembly are connected to the whole machine, the accuracy requirements cannot be guaranteed, and asynchronism will occur, which is prone to faults such as oil leakage, abnormal noise, and bearing damage; second, the overall structure is scattered and lacks a separation device, which cannot meet the user's needs for disconnection during use. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model develops an ear picking and straw returning transmission box with a separation device. The utility model can not only ensure the synchronous operation of the ear picking box assembly and the blade throwing box assembly, but also meet the user's need for disengagement during use, thereby effectively improving the use effect of the transmission box.

[0005] The technical solution of the utility model to solve the technical problem is: an ear picking and straw returning transmission box with a separation device, comprising an ear picking box body and a knife flinging box body, one end of the knife flinging box body is provided with a separation device and a third driven shaft, the other end of the knife flinging box body is connected with the ear picking box body, a first main shaft is penetrated through the ear picking box body, a second main shaft is rotatably arranged in the knife flinging box body, the first main shaft is connected with one end of the second main shaft through a first bevel gear set, a fourth active bevel gear is rotatably arranged at the other end of the second main shaft, the second main shaft is dynamically connected with the fourth active bevel gear through a spline sleeve, the fourth active bevel gear is connected with the third driven shaft through a fourth driven bevel gear, and one end of the spline sleeve is connected with the separation device.

[0006] As an optimization, a slide groove is provided at one end of the outer side of the spline sleeve, and the output end of the separation device is slidably arranged in the slide groove. By providing the slide groove, the separation device can conveniently control the sliding of the spline sleeve.

[0007] As an optimization, the separation device includes a rotating rod, a handle and a shift fork. One end of the rotating rod is rotatably connected to the inner wall of the knife-flinging box, and the other end passes through the knife-flinging box and is connected to one end of the handle. The connecting rod of the shift fork is connected to the rotating rod, and the fork head of the shift fork is slidably set in the slide groove. By setting the rotating rod, the shift fork can be driven to rotate; by setting the handle, it is convenient for the staff to shift the shift fork; by setting the shift fork, the spline sleeve can be shifted to make the spline sleeve slide on the second main shaft.

[0008] As an optimization, the spline sleeve is slidably arranged on the second main shaft, the second main shaft is provided with external splines matching with the internal splines of the spline sleeve, and the inner side of the fourth active bevel gear is provided with internal splines matching with the external splines of the spline sleeve.

[0009] As an optimization, two sets of first driven shafts and two sets of second driven shafts are rotatably provided on the ear picking box. The inner ends of the two sets of first driven shafts are connected to the first main shaft through the second bevel gear set, and the inner ends of the two sets of second driven shafts are connected to the first main shaft through the third bevel gear set. By setting two sets of first driven shafts, power can be output for ear picking; by setting two sets of second driven shafts, power can be output to pull down the straw.

[0010] As an optimization, a transmission gear is provided at one end of the first main shaft. By providing the transmission gear, the first main shafts of multiple groups of ear picking boxes can be linked, and the harvesting range of corn can be expanded.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] By setting an ear picking box, a knife flinging box, a first main shaft, a second main shaft and a first bevel gear set, the ear picking box and the knife flinging box can be formed into an integral structure with a compact structure. The first main shaft can directly drive the second main shaft to rotate, and the accuracy is easy to ensure, avoiding the phenomenon of asynchronous, preventing oil leakage, abnormal noise, bearing damage and other faults; by setting a fourth active bevel gear, a spline sleeve and a fourth driven bevel gear, a spline connection suitable for sliding can be formed, which has good guiding performance and high stability, and can drive the third driven shaft to rotate, thereby outputting power to cut off the straw; by setting a separation device, the spline sleeve can be controlled to slide on the second main shaft, so that the second main shaft can be connected or disconnected with the fourth active bevel gear to form a dynamic connection. The utility model can not only ensure the synchronous operation of the ear picking box assembly and the knife flinging box assembly, but also meet the user's need for disengagement during use, and effectively improve the use effect of the transmission box. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 2 This is a front view of an embodiment of the utility model.

[0015] Figure 3 for Figure 2 Cross-sectional view along the AA direction.

[0016] Figure 4 It is a left view of an embodiment of the utility model.

[0017] Figure 5 for Figure 4 Cross-sectional view along direction BB.

[0018] Figure 6 It is a partial structural schematic diagram of the knife-flinging box in one embodiment of the utility model.

[0019] Figure 7 It is a schematic structural diagram of a shift fork and a spline sleeve in one embodiment of the utility model.

[0020] In the figure, 1, the ear picking box; 2, the flinging knife box; 3, the separation device; 4, the third driven shaft; 5, the first main shaft; 6, the second main shaft; 7, the first bevel gear set; 8, the fourth driving bevel gear; 9, the spline sleeve; 10, the fourth driven bevel gear; 11, the first driven shaft; 12, the second driven shaft; 13, the second bevel gear set; 14, the third bevel gear set; 15, the transmission gear;

[0021] 31. Rotating rod; 32. Handle; 33. Fork;

[0022] 91. Chute. DETAILED DESCRIPTION

[0023] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0024] Example 1

[0025] Figures 1 to 7 An embodiment of the present utility model is as follows: Figures 1 to 7As shown, an ear picking and straw returning transmission box with a separation device comprises an ear picking box body 1 and a blade flinging box body 2, one end of the blade flinging box body 2 is provided with a separation device 3 and a third driven shaft 4, the other end of the blade flinging box body 2 is connected with the ear picking box body 1, a first main shaft 5 is penetrated through the ear picking box body 1, a second main shaft 6 is rotatably provided in the blade flinging box body 2, the first main shaft 5 is connected to one end of the second main shaft 6 through a first bevel gear set 7, a fourth active bevel gear 8 is rotatably provided at the other end of the second main shaft 6, the inner side wall of the fourth active bevel gear 8 is connected to the other end of the second main shaft 6 through a first bearing, the outer side wall of the fourth active bevel gear 8 is connected to the side wall of the blade flinging box body 2 through a second bearing, the second main shaft 6 is dynamically connected to the fourth active bevel gear 8 through a spline sleeve 9, the fourth active bevel gear 8 is connected to the third driven shaft 4 through a fourth driven bevel gear 10, and one end of the spline sleeve 9 is connected to the separation device 3.

[0026] By arranging an ear picking box 1, a knife flinging box 2, a first main shaft 5, a second main shaft 6 and a first bevel gear set 7, the ear picking box 1 and the knife flinging box 2 can be formed into an integral structure with a compact structure. The first main shaft 5 can directly drive the second main shaft 6 to rotate, and the accuracy is easy to ensure, thereby avoiding the occurrence of asynchronous phenomena, and preventing faults such as oil leakage, abnormal noise, and bearing damage. By arranging a fourth active bevel gear 8, a spline sleeve 9 and a fourth driven bevel gear 10, a spline connection suitable for sliding can be formed, which has good guiding performance and high stability, and can drive the third driven shaft 4 to rotate, thereby outputting power to cut off the straw. By arranging a separation device 3, the spline sleeve 9 can be controlled to slide on the second main shaft 6, so that the second main shaft 6 can be connected or disconnected with the fourth active bevel gear 8 to form a dynamic connection.

[0027] like Figure 7 As shown, a slide groove 91 is provided at one end of the outer side of the spline sleeve 9, and the output end of the separation device 3 is slidably arranged in the slide groove 91. By providing the slide groove 91, the separation device 3 can conveniently control the spline sleeve 9 to slide.

[0028] like Figures 5 to 7 As shown, the separation device 3 includes a rotating rod 31, a handle 32 and a shift fork 33. One end of the rotating rod 31 is rotatably connected to the inner wall of the knife-flinging housing 2, and the other end passes through the knife-flinging housing 2 and is connected to one end of the handle 32. The other end of the handle 32 is connected to the outer wall of the knife-flinging housing 2 through a self-locking device. The shift fork 33 is arranged inside the knife-flinging housing 2. The connecting rod of the shift fork 33 is connected to the rotating rod 31, and the fork head of the shift fork 33 is slidably arranged in the slide groove 91. By setting the rotating rod 31, the shift fork 33 can be driven to rotate; by setting the handle 32, it is convenient for the staff to shift the shift fork 33, and the position of the handle 32 can be self-locked to avoid shaking; by setting the shift fork 33, the spline sleeve 9 can be shifted to make the spline sleeve 9 slide on the second main shaft 6.

[0029] like Figures 5 to 7As shown, the spline sleeve 9 is slidably arranged on the second main shaft 6 , the second main shaft 6 is provided with external splines matching with the internal splines of the spline sleeve 9 , and the inner side of the fourth active bevel gear 8 is provided with internal splines matching with the external splines of the spline sleeve 9 .

[0030] like Figures 1 to 5 As shown, two groups of first driven shafts 11 and two groups of second driven shafts 12 are rotatably provided on the ear picking box 1, and the two groups of first driven shafts 11 are respectively arranged on both sides of the ear picking box 1, and the inner ends of the two groups of first driven shafts 11 are connected to the first main shaft 5 through the second bevel gear set 13, and the two groups of second driven shafts 12 are arranged in the middle of the ear picking box 1, and the inner ends of the two groups of second driven shafts 12 are connected to the first main shaft 5 through the third bevel gear set 14. By setting two groups of first driven shafts 11, power can be output for ear picking; by setting two groups of second driven shafts 12, power can be output to pull down the straw.

[0031] like Figures 1 to 3 as well as Figure 5 As shown, a transmission gear 15 is provided at one end of the first main shaft 5. By providing the transmission gear 15, the first main shafts 5 of multiple groups of ear picking boxes 1 can be linked to expand the harvesting range of corn.

[0032] When in use, the ear picking box 1 is installed on the whole machine, and the other end of the first main shaft 5 is connected to the output shaft of the whole machine. The whole machine drives the first main shaft 5 to rotate, and the transmission gear 15 at one end of the first main shaft 5 drives the first main shaft 5 of other ear picking boxes 1 to rotate through the chain, and the first main shaft 5 drives the second main shaft 6, the first driven shaft 11 and the second driven shaft 12 to rotate synchronously through the first bevel gear set 7, the second bevel gear set 13 and the third bevel gear set 14 respectively; after the second main shaft 6 rotates, the fourth active bevel gear 8 is driven to rotate through the spline sleeve 9, and the third driven shaft 4 is driven to rotate through the fourth driven bevel gear 10 to output power, so that the straw is cut off by the fling knife to realize the return of the straw to the field; when the need to disengage arises, the user can rotate the handle 32, and drive the fork 33 to rotate through the rotating rod 31, so that the spline sleeve 9 slides on the second main shaft 6, separates from the fourth active bevel gear 8, and disconnects the power output. The utility model can ensure the synchronous operation of the ear picking box assembly and the blade flinging box assembly, and can also meet the user's need for disengagement during use, thereby effectively improving the use effect of the transmission box.

[0033] The descriptions of the orientation or relative position relationship of the structure in the present invention, such as the orientation or relative position relationship indicated by "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

Claims

1. A transmission box for picking ears and returning straw to the field with a separation device, comprising an ear picking box body (1) and a blade flinging box body (2), characterized in that: A separation device (3) and a third driven shaft (4) are provided at one end of the flinging blade housing (2), and the other end of the flinging blade housing (2) is connected to an ear picking housing (1). A first main shaft (5) is provided through the ear picking housing (1), and a second main shaft (6) is rotatably provided in the flinging blade housing (2). The first main shaft (5) is connected to one end of the second main shaft (6) through a first bevel gear set (7), and a fourth active bevel gear (8) is rotatably provided at the other end of the second main shaft (6). The second main shaft (6) is rotatably connected to the fourth active bevel gear (8) through a spline sleeve (9), and the fourth active bevel gear (8) is connected to the third driven shaft (4) through a fourth driven bevel gear (10), and one end of the spline sleeve (9) is connected to the separation device (3).

2. The ear picking and straw returning transmission box with a separation device according to claim 1 is characterized in that: A sliding groove (91) is provided at one end of the outer side of the spline sleeve (9), and the output end of the separation device (3) is slidably arranged in the sliding groove (91).

3. The ear picking and straw returning transmission box with a separation device according to claim 2 is characterized in that: The separation device (3) comprises a rotating rod (31), a handle (32) and a shift fork (33); one end of the rotating rod (31) is rotatably connected to the inner wall of the blade-flinging housing (2), and the other end passes through the blade-flinging housing (2) and is connected to one end of the handle (32); a connecting rod of the shift fork (33) is connected to the rotating rod (31), and a fork head of the shift fork (33) is slidably arranged in a slide groove (91).

4. The ear picking and straw returning transmission box with a separation device according to claim 3 is characterized in that: The spline sleeve (9) is slidably arranged on the second main shaft (6), the second main shaft (6) is provided with an external spline matching with the internal spline of the spline sleeve (9), and the inner side of the fourth active bevel gear (8) is provided with an internal spline matching with the external spline of the spline sleeve (9).

5. The ear picking and straw returning transmission box with a separation device according to any one of claims 1 to 4, characterized in that: Two groups of first driven shafts (11) and two groups of second driven shafts (12) are rotatably provided on the ear picking box (1); the inner ends of the two groups of first driven shafts (11) are connected to the first main shaft (5) through a second bevel gear set (13); and the inner ends of the two groups of second driven shafts (12) are connected to the first main shaft (5) through a third bevel gear set (14).

6. The ear picking and straw returning transmission box with a separation device according to claim 5 is characterized in that: A transmission gear (15) is provided at one end of the first main shaft (5).

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