CN112166800A - Combine harvester - Google Patents
Combine harvester Download PDFInfo
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- CN112166800A CN112166800A CN202011079841.8A CN202011079841A CN112166800A CN 112166800 A CN112166800 A CN 112166800A CN 202011079841 A CN202011079841 A CN 202011079841A CN 112166800 A CN112166800 A CN 112166800A
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- shaft
- output shaft
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
- A01D41/12—Details of combines
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
- A01D69/02—Driving mechanisms or parts thereof for harvesters or mowers electric
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/56—Driving mechanisms for the threshing parts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/14—Measures for saving energy, e.g. in green houses
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- General Details Of Gearings (AREA)
- Harvester Elements (AREA)
Abstract
The invention discloses a combine harvester which comprises a vehicle body main body and a threshing cylinder device, wherein the threshing cylinder device comprises a fixed frame, a rotating shaft, a cylinder and a driving motor, the fixed frame is arranged on the vehicle body main body, the rotating shaft is rotatably arranged on the fixed frame, the cylinder is fixedly arranged on the rotating shaft, and threshing teeth are arranged on the cylinder; the transfer case is further arranged and comprises a case body assembly, and an input shaft, a first output shaft, a second output shaft, a first gear, a second gear, a small bevel gear, a large bevel gear and a clutch assembly which are arranged on the case body assembly, wherein the input shaft and the first output shaft are both horizontally arranged, the first output shaft is in transmission connection with a rotating shaft, and the second output shaft is vertically arranged; the harvester can be driven to run by only one driving motor through the transfer case, and the rotating shaft can be driven to rotate according to requirements so that the separation roller device can rotate.
Description
Technical Field
The invention relates to the technical field of agricultural machinery, in particular to a combine harvester.
Background
China is a big agricultural country, and the market demand of grain combine harvesters is very large.
The grain combine harvester can harvest grains and separate rice from straws on the grains, and plays an important role in large-scale grain harvesting. The grain harvester has a complex structure, the threshing roller device is an important component of the grain combine harvester, the threshing roller device mainly comprises a threshing toothed bar, a fixing plate and a rotating shaft, the threshing toothed bar is provided with a plurality of threshing toothed bars, the plurality of threshing toothed bars are circumferentially arranged on the fixing plate, and the fixing plate is fixed on the rotating shaft. The threshing toothed bar is provided with strip-shaped threshing teeth, the driving device drives the rotating shaft to rotate, so that the threshing roller device rotates, the threshing teeth strike the harvested rice ears, the rice on the rice ears is separated from the rice ears, and the grains are separated into the rice and the straws.
In general, a grain combine harvester harvests while driving grain, wherein one driving motor drives the harvester to drive through a gearbox, and the other driving motor drives a rotating shaft to rotate so as to enable a separation roller device to rotate.
Disclosure of Invention
In order to solve the above problems, the present invention aims to overcome the disadvantages of the prior art, and provide a combine harvester, which uses only one driving motor to drive the harvester to run, and can also drive a rotating shaft to rotate according to requirements so as to rotate a separation roller device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a combine harvester comprises a vehicle body main body and a threshing cylinder device, wherein the threshing cylinder device comprises a fixed frame, a rotating shaft, a cylinder and a driving motor, the fixed frame is installed on the vehicle body main body, the rotating shaft is rotatably installed on the fixed frame, the cylinder is fixedly installed on the rotating shaft, and threshing teeth are arranged on the cylinder; the improvement is that:
the transfer case is further arranged and comprises a case body assembly, and an input shaft, a first output shaft, a second output shaft, a first gear, a second gear, a small bevel gear, a large bevel gear and a clutch assembly which are arranged on the case body assembly, wherein the input shaft and the first output shaft are both horizontally arranged, the first output shaft is in transmission connection with a rotating shaft, and the second output shaft is vertically arranged; the driving motor drives the input shaft to rotate so as to drive the second output shaft to rotate and further drive the vehicle body main body to move; or the driving motor drives the input shaft to rotate so as to drive the first output shaft and the second output shaft to rotate so as to drive the threshing cylinder device to perform threshing operation and drive the vehicle body main body to move;
the small bevel gear is sleeved on the rear half section of the input shaft and is in transmission connection with the input shaft, the large bevel gear is sleeved on the lower half section of the second output shaft and is in transmission connection with the second output shaft, and the small bevel gear and the large bevel gear are in meshing transmission;
the clutch assembly comprises a sliding gear sleeve, the sliding gear sleeve is slidably sleeved on the second output shaft and is in transmission connection with the second output shaft, the sliding gear sleeve is located behind the second gear, the sliding gear sleeve is provided with a first stop position and a second stop position, when the sliding gear sleeve is located at the first stop position, the sliding gear sleeve is in transmission connection with the second gear, and when the sliding gear sleeve is located at the second stop position, the sliding gear sleeve is separated from the second gear.
Preferably, the clutch assembly further comprises a gear shifting fork member and a gear shifting shaft, a circle of second annular groove is further formed in the sliding gear sleeve, one end of the gear shifting fork member extends into the second annular groove, the gear shifting fork member is sleeved on the gear shifting shaft in an empty mode, a spiral groove is further formed in the inner wall of the gear shifting fork member, a second cylindrical pin is further mounted on the gear shifting shaft, one end of the second cylindrical pin abuts against the spiral groove, the second cylindrical pin can slide in the spiral groove, and the gear shifting shaft rotates to drive the gear shifting fork member to move back and forth so as to drive the sliding gear sleeve to slide back and forth.
Preferably, the second gear further includes internal teeth, and the sliding sleeve is engaged with the internal teeth of the second gear;
the diameter of the second gear is 1-5 times of the diameter of the first gear.
Preferably, the gear shifting device is further provided with a gear shifting handle, the gear shifting handle comprises a handle shaft and a shaft sleeve, the handle shaft is Z-shaped, one end of the handle shaft is coaxially and fixedly connected with the gear shifting shaft through a first cylindrical pin, and the shaft sleeve is sleeved and fixedly installed at the other end of the handle shaft through a bolt.
Preferably, the clutch assembly further comprises a third shaft elastic check ring and a limiting spring, a first clamping groove is formed in the first output shaft, the third shaft elastic check ring is clamped and installed in the first clamping groove, one end of the limiting spring abuts against the rear end face of the sliding gear sleeve, and the other end of the limiting spring abuts against the third shaft elastic check ring.
Preferably, the box body assembly comprises a main box body, an auxiliary box body, a front end cover, a rear end cover and a chassis, wherein the front end cover is fixedly arranged on the front end face of the main box body through a plurality of fasteners, the main box body and the auxiliary box body are fixedly connected through a plurality of fasteners, the rear end cover is fixedly arranged on the rear end face of the auxiliary box body through a plurality of fasteners, and the chassis is fixedly arranged at the bottom of the auxiliary box body through a plurality of fasteners;
the input shaft is arranged on the main box body, the first output shaft is arranged on the main box body and the auxiliary box body, and the second output shaft is arranged on the auxiliary box body.
Preferably, the input shaft is further provided with a second clamping groove and a circle of first annular protrusion, the first gear is located between the second clamping groove and the first annular protrusion, the elastic check ring for the first shaft is located in the second clamping groove, the front end face of the first gear abuts against the elastic check ring for the first shaft, the rear end face of the first gear abuts against the first gasket, and the rear end face of the first gasket abuts against the first annular protrusion.
Preferably, the input shaft is mounted in the first mounting holes through the two first conical bearings, a second annular bulge and a third annular bulge are arranged on the inner side wall of each first mounting hole, the second annular bulge is located in front of the third annular bulge, the front end face and the rear end face of one first conical bearing respectively abut against the first annular bulge and the second annular bulge, and the front end face and the rear end face of the other first conical bearing respectively abut against the third annular bulge and the small bevel gear;
the second gasket, the stop washer and the nut are arranged, the second gasket and the stop washer are respectively positioned at the front end and the rear end of the small bevel gear, the second gasket is positioned between the first bevel bearing and the small bevel gear, the stop washer is positioned between the small bevel gear and the nut, and the nut is positioned at the rear end of the input shaft and is in threaded fit with the input shaft; thus, the axial play of the small bevel gear can be effectively prevented.
Preferably, a second oil seal and a front first ball bearing and a rear first ball bearing are further arranged, the first output shaft is mounted on the front end cover through the first ball bearing positioned at the front end, and is mounted on the rear end cover through the first ball bearing positioned at the rear end, and the second oil seal is positioned between the first output shaft and the rear end cover;
the first output shaft is also provided with a second shaft elastic check ring, the first output shaft is also provided with a third clamping groove, the second shaft elastic check ring is clamped and installed in the third clamping groove, and the front end face and the rear end face of the second shaft elastic check ring are respectively abutted against a first ball bearing and a second gear which are positioned in front;
the first output shaft is also provided with a fourth annular bulge, and the front end surface and the rear end surface of the first ball bearing positioned at the rear part are respectively abutted against the fourth annular bulge and the rear end cover; thus, the first output shaft can be prevented from moving axially by matching the third shaft circlip and the second shaft circlip.
Preferably, the hydraulic transmission device is further provided with a fourth oil seal, a second taper bearing and a third ball bearing, the lower half section of the second output shaft is mounted on the chassis through the second taper bearing, the upper half section of the second output shaft is mounted on the auxiliary box body through the third ball bearing, and the fourth oil seal is located between the auxiliary box body and the second output shaft;
the second output shaft is also provided with a circle of fifth annular bulge, the upper end surface and the lower end surface of the fourth gasket are respectively abutted against the fifth annular bulge and the large bevel gear, and the upper end surface and the lower end surface of the third gasket are respectively abutted against the second taper bearing and the large bevel gear;
still be equipped with the circlip for the hole, still be equipped with round sixth annular arch on the second output shaft, still be equipped with the second mounting hole on the auxiliary box body, the second output shaft passes the second mounting hole, the inside wall of second mounting hole still is equipped with the first annular groove of round, the circlip for the hole is located in the first annular groove, the lower terminal surface and the protruding counterbalance of sixth annular of third ball bearing, the up end and the circlip for the hole of third ball bearing counterbalance.
The invention has the beneficial effects that: whether the input shaft can drive the second output shaft to rotate or not is determined by controlling the sliding gear sleeve to slide back and forth on the second gear, namely, the threshing roller device can be driven to perform threshing operation and the vehicle body main body can be driven to move simultaneously by the same driving motor; the parts are few, the structure is simple, and the cost is saved.
Drawings
FIG. 1 is a first schematic structural diagram of a transfer case according to the present invention;
FIG. 2 is a second schematic structural view of the transfer case of the present invention;
fig. 3 is a third schematic structural diagram of the transfer case of the present invention.
Description of reference numerals: 1. an input shaft; 2. a first oil seal; 3. a circlip for the first shaft; 4. a first gear; 5. a first gasket; 6. a first cone bearing; 7. a second gasket; 8. a bevel pinion gear; 9. a stop washer; 10. a first nut; 11. a first ball bearing; 12. a circlip for the second shaft; 13. a second gear; 14. a main tank assembly; 15. a sliding gear sleeve; 16. a limiting spring; 17. a circlip for the third shaft; 18. a first output shaft; 19. an auxiliary box body assembly; 20. a second oil seal; 21. a first protective cover; 22. a rear end cap; 23. a chassis; 24. a seal ring; 25. a second tapered bearing; 26. a third gasket; 27. a second bevel gear; 28. a fourth gasket; 29. a third ball bearing; 30. a second protective cover; 31. a second output shaft; 32. a fourth oil seal; 33. a circlip for a hole; 34. a fifth pad; 35. a front end cover; 36. a handle shaft; 37. a shaft sleeve; 38. a bolt; 39. a shift handle; 40. a first cylindrical pin; 41. an O-shaped ring; 42. a shift fork; 43. a second cylindrical pin; 44. a shift shaft.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
It is worth noting that in the present invention, with reference to the orientation of fig. 1, the second output shaft is located "behind" the input shaft, and the input shaft is located "in front" of the second output shaft.
The first embodiment is as follows:
a combine harvester, which comprises a vehicle body and a threshing roller device, wherein the structure of the threshing roller device can refer to the related structures referred to in the publication numbers of CN210987062U, CN211020099U and CN109258129B, generally speaking, the threshing roller device comprises a fixed frame, a rotating shaft, a roller and a driving motor, the fixed frame is arranged on the vehicle body, the rotating shaft is rotatably arranged on the fixed frame, the roller is fixedly arranged on the rotating shaft, and the roller is provided with threshing teeth;
in this embodiment, a transfer case as shown in fig. 1-3 is further provided, where the transfer case includes a case assembly, and an input shaft 1, a first output shaft 18, a second output shaft 31, a first gear 4, a second gear 13, a small bevel gear 8, a large bevel gear and a clutch assembly which are mounted on the case assembly, where the input shaft 1 and the first output shaft 18 are both horizontally arranged, the first output shaft 18 is in transmission connection with a rotating shaft, and the second output shaft 31 is vertically arranged; the driving motor drives the input shaft 1 to rotate so as to drive the second output shaft 31 to rotate and further drive the vehicle body to move; or the driving motor drives the input shaft 1 to rotate so as to drive the first output shaft 18 and the second output shaft 31 to rotate, so as to drive the threshing cylinder device to perform threshing operation and drive the vehicle body main body to move;
the small bevel gear 8 is sleeved on the rear half section of the input shaft 1 and is in transmission connection with the input shaft 1, the large bevel gear is sleeved on the lower half section of the second output shaft 31 and is in transmission connection with the second output shaft 31, and the small bevel gear 8 and the large bevel gear are in meshing transmission;
the clutch assembly comprises a sliding gear sleeve 15, the sliding gear sleeve 15 is slidably sleeved on the second output shaft 31 and is in transmission connection with the second output shaft 31, the sliding gear sleeve 15 is located behind the second gear 13, the sliding gear sleeve 15 is provided with a first stop position and a second stop position, when the sliding gear sleeve 15 is located at the first stop position, the sliding gear sleeve 15 is in transmission connection with the second gear 13, and when the sliding gear sleeve 15 is located at the second stop position, the sliding gear sleeve 15 is separated from the second gear 13.
According to the arrangement, the sliding gear sleeve 15 is controlled to slide back and forth on the second gear 13, so that whether the input shaft 1 can drive the second output shaft 31 to rotate or not is determined, namely, the threshing roller device can be driven to perform threshing operation and the vehicle body can be driven to move simultaneously through the same driving motor; the parts are few, the structure is simple, and the cost is saved.
In the present embodiment, the sliding gear sleeve 15 is in transmission connection with the first output shaft 18 through a spline.
In this embodiment, the clutch assembly further includes a shift fork 42 and a shift shaft, a circle of second annular groove is further formed in the sliding gear sleeve 15, one end of the shift fork extends into the second annular groove, the shift fork is sleeved on the shift shaft in an empty mode, a spiral groove is further formed in the inner wall of the shift fork, a second cylindrical pin 43 is further mounted on the shift shaft, one end of the second cylindrical pin 43 abuts against the spiral groove, the second cylindrical pin 43 can slide in the spiral groove, and the shift shaft rotates to drive the shift fork to move back and forth and further drive the sliding gear sleeve 15 to slide back and forth.
Further preferably, the second gear 13 further includes an internal tooth, and the sliding sleeve 15 is engaged with the internal tooth of the second gear 13.
Further preferably, the diameter of the second gear 13 is 1 to 5 times the diameter of the first gear 4.
Further preferably, a gear shifting handle is further provided, the gear shifting handle comprises a handle shaft 36 and a shaft sleeve 37, the handle shaft 36 is Z-shaped, one end of the handle shaft 36 is coaxially and fixedly connected with the gear shifting shaft through a first cylindrical pin 40, and the shaft sleeve 37 is sleeved and fixedly installed at the other end of the handle shaft 36 through a bolt 38.
According to the arrangement, when the gear shifting handle rotates anticlockwise, the sliding gear sleeve 15 moves from the first stop position to the second stop position, at the moment, the sliding gear sleeve 15 is not in transmission connection with the second gear 13, at the moment, the input shaft 1 only drives the second output shaft 31 to rotate, namely, the combine harvester is in a running state at the moment, and is suitable for running on a highway;
when the gear shifting handle rotates clockwise, the sliding gear sleeve 15 moves from the second stop position to the first stop position, at the moment, the sliding gear sleeve 15 is in transmission connection with the second gear 13, at the moment, the input shaft 1 simultaneously drives the first output shaft 18 and the second output shaft 31 to rotate, namely, the combine harvester is in a field operation state, namely, the combine harvester runs while performing threshing roller operation.
Further preferably, an O-ring 41 is provided, said O-ring 41 being located between the shift shaft and the front end cover 35.
In this embodiment, the clutch assembly further includes a third shaft circlip 17 and a limiting spring 16, a first slot is provided on the first output shaft 18, the third shaft circlip 17 is installed in the first slot in a clamping manner, one end of the limiting spring 16 abuts against the rear end surface of the sliding gear sleeve 15, and the other end of the limiting spring 16 abuts against the third shaft circlip 17; this is provided to prevent the sliding sleeve gear 15 from sliding backwards to a point where it is out of driving connection with the first output shaft 18.
In this embodiment, the box assembly includes a main box, an auxiliary box, a front end cover 35, a rear end cover 22 and a chassis 23, the front end cover 35 is fixedly mounted on the front end surface of the main box through a plurality of fasteners, the main box and the auxiliary box are fixedly connected through a plurality of fasteners, the rear end cover 22 is fixedly mounted on the rear end surface of the auxiliary box through a plurality of fasteners, and the chassis 23 is fixedly mounted on the bottom of the auxiliary box through a plurality of fasteners;
the input shaft 1 is mounted on a main housing, the first output shaft 18 is mounted on the main housing and an auxiliary housing, and the second output shaft 31 is mounted on the auxiliary housing.
Therefore, the box body assembly adopts a split structure, and is convenient to install and reliable in performance.
Further preferably, a first oil seal 2 is further provided, and the oil seal is positioned between the front end cover 35 and the input shaft 1.
In this embodiment, a first shaft circlip 3 and a first gasket 5 are further provided, a second clamping groove and a circle of first annular protrusion are further provided on the input shaft 1, the first gear 4 is located between the second clamping groove and the first annular protrusion, the first shaft circlip 3 is located in the second clamping groove, the front end surface of the first gear 4 abuts against the first shaft circlip 3, the rear end surface of the first gear 4 abuts against the first gasket 5, and the rear end surface of the first gasket 5 abuts against the first annular protrusion; in this way, the first gear 4 is prevented from axially shifting.
In this embodiment, a front first conical bearing 6 and a rear first conical bearing 6 are further provided, a first mounting hole is further provided in the main box, the input shaft 1 is mounted in the first mounting hole through the two first conical bearings 6, a second annular bulge and a third annular bulge are provided on the inner side wall of the first mounting hole, the second annular bulge is located in front of the third annular bulge, the front end face and the rear end face of one first conical bearing 6 respectively abut against the first annular bulge and the second annular bulge, and the front end face and the rear end face of the other first conical bearing 6 respectively abut against the third annular bulge and the bevel pinion 8; in this way, the input shaft 1 is prevented from axially shifting.
Further preferably, a second gasket 7, a stop washer 9 and a nut are further provided, the second gasket 7 and the stop washer 9 are respectively located at the front end and the rear end of the bevel pinion 8, the second gasket 7 is located between the first conical bearing 6 and the bevel pinion 8, the stop washer 9 is located between the bevel pinion 8 and the nut, and the nut is located at the rear end of the input shaft 1 and is in threaded fit with the input shaft 1; thus, the axial play of the bevel pinion 8 can be effectively prevented.
In the present embodiment, a second oil seal 20 and two front and rear first ball bearings 11 are further provided, the first output shaft 18 is mounted on the front end cover 35 through the first ball bearing 11 at the front end, and is mounted on the rear end cover 22 through the first ball bearing 11 at the rear end, and the second oil seal 20 is located between the first output shaft 18 and the rear end cover 22.
Preferably, a second shaft circlip 12 is further provided, a third clamping groove is further provided on the first output shaft 18, the second shaft circlip 12 is clamped and installed in the third clamping groove, and the front end face and the rear end face of the second shaft circlip 12 are respectively abutted against the first ball bearing 11 and the second gear 13 which are located in front; the arrangement is such that the first ball bearing 11 located in front is restricted from sliding backwards, and the second circlip 12, in cooperation with the limiting spring 16 and the third circlip 17, prevents the second gear 13 from moving axially.
Preferably, a fourth annular protrusion is further disposed on the first output shaft 18, and front and rear end faces of the first ball bearing 11 located behind abut against the fourth annular protrusion and the rear end cap 22, respectively; thus, the third circlip 17 for the shaft and the second circlip 12 are engaged to prevent the first output shaft 18 from moving in the axial direction.
In the present embodiment, a fourth oil seal 32, a second taper bearing 25 and a third ball bearing 29 are further provided, the lower half section of the second output shaft 31 is mounted on the chassis 23 through the second taper bearing 25, the upper half section of the second output shaft 31 is mounted on the sub-tank through the third ball bearing 29, and the fourth oil seal 32 is located between the sub-tank and the second output shaft 31.
Preferably, a third gasket 26 and a fourth gasket 28 which are sleeved on a second output shaft 31 are further provided, the third gasket 26 is located below the fourth gasket 28, a circle of fifth annular protrusion is further provided on the second output shaft 31, the upper end face and the lower end face of the fourth gasket 28 respectively abut against the fifth annular protrusion and the large bevel gear, and the upper end face and the lower end face of the third gasket 26 respectively abut against the second taper bearing 25 and the large bevel gear; this prevents axial play of the large bevel gear.
Further preferably, a circlip 33 for holes is further arranged, a circle of sixth annular protrusion is further arranged on the second output shaft 31, a second mounting hole is further arranged on the auxiliary box body, the second output shaft 31 penetrates through the second mounting hole, a circle of first annular groove is further arranged on the inner side wall of the second mounting hole, the circlip 33 for holes is located in the first annular groove, the lower end face of the third ball bearing 29 abuts against the sixth annular protrusion, and the upper end face of the third ball bearing 29 abuts against the circlip 33 for holes; this is provided to prevent the second output shaft 31 from moving axially.
In this embodiment, a seal ring 24 is also provided, said seal ring 24 being located between the chassis 23 and the secondary tank.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A combine harvester comprises a vehicle body main body and a threshing cylinder device, wherein the threshing cylinder device comprises a fixed frame, a rotating shaft, a cylinder and a driving motor, the fixed frame is installed on the vehicle body main body, the rotating shaft is rotatably installed on the fixed frame, the cylinder is fixedly installed on the rotating shaft, and threshing teeth are arranged on the cylinder; the method is characterized in that:
the transfer case is further arranged and comprises a case body assembly, and an input shaft (1), a first output shaft (18), a second output shaft (31), a first gear (4), a second gear (13), a small bevel gear (8), a large bevel gear and a clutch assembly which are arranged on the case body assembly, wherein the input shaft (1) and the first output shaft (18) are both horizontally arranged, the first output shaft (18) is in transmission connection with a rotating shaft, and the second output shaft (31) is vertically arranged; the driving motor drives the input shaft (1) to rotate so as to drive the second output shaft (31) to rotate and further drive the vehicle body main body to move; or the driving motor drives the input shaft (1) to rotate so as to drive the first output shaft (18) and the second output shaft (31) to rotate so as to drive the threshing cylinder device to perform threshing operation and drive the vehicle body main body to move;
the small bevel gear (8) is sleeved on the rear half section of the input shaft (1) and is in transmission connection with the input shaft (1), the large bevel gear is sleeved on the lower half section of the second output shaft (31) and is in transmission connection with the second output shaft (31), and the small bevel gear (8) and the large bevel gear are in meshing transmission;
the first gear (4) is sleeved on the front half section of the input shaft (1) and is in transmission connection with the input shaft (1), the second gear (13) is sleeved on the front half section of the second output shaft (31) in a hollow way and is in transmission connection with the first gear (4), the clutch component comprises a sliding gear sleeve (15), the sliding gear sleeve (15) is slidably sleeved on the second output shaft (31) and is in transmission connection with the second output shaft (31), the sliding gear sleeve (15) is positioned behind the second gear (13), the sliding gear sleeve (15) is provided with a first stop position and a second stop position, when the sliding gear sleeve (15) is positioned at the first stop position, the sliding gear sleeve (15) is in transmission connection with the second gear (13), when the sliding gear sleeve (15) is located at the second stop position, the sliding gear sleeve (15) is separated from the second gear (13).
2. A combine harvester according to claim 1, wherein the clutch assembly further comprises a shift fork (42) and a shift shaft, the sliding sleeve (15) is further provided with a circle of second annular groove, one end of the shift fork extends into the second annular groove, the shift fork is freely sleeved on the shift shaft, the inner wall of the shift fork is further provided with a spiral groove, the shift shaft is further provided with a second cylindrical pin (43), one end of the second cylindrical pin (43) abuts against the spiral groove, the second cylindrical pin (43) can slide in the spiral groove, and the shift shaft rotates to drive the shift fork to move back and forth to drive the sliding sleeve (15) to slide back and forth.
3. A combine harvester according to claim 1, characterised in that the second gear wheel (13) further comprises internal teeth, the sliding sleeve (15) meshing with the internal teeth of the second gear wheel (13);
the diameter of the second gear (13) is 1-5 times of the diameter of the first gear (4).
4. A combine harvester according to claim 1, further comprising a shift handle, wherein the shift handle comprises a handle shaft (36) and a shaft sleeve (37), the handle shaft (36) is Z-shaped, one end of the handle shaft (36) is coaxially and fixedly connected with the shift shaft through a first cylindrical pin (40), and the shaft sleeve (37) is sleeved and fixedly mounted at the other end of the handle shaft (36) through a bolt (38).
5. The combine harvester according to claim 1, wherein the clutch assembly further comprises a third shaft circlip (17) and a limit spring (16), the first output shaft (18) is provided with a first clamping groove, the third shaft circlip (17) is clamped and installed in the first clamping groove, one end of the limit spring (16) abuts against the rear end face of the sliding gear sleeve (15), and the other end of the limit spring (16) abuts against the third shaft circlip (17).
6. A combine harvester according to claim 1, wherein the box assembly comprises a main box, an auxiliary box, a front cover (35), a rear cover (22) and a chassis (23), the front cover (35) is fixedly mounted on the front end face of the main box through a plurality of fasteners, the main box and the auxiliary box are fixedly connected through a plurality of fasteners, the rear cover (22) is fixedly mounted on the rear end face of the auxiliary box through a plurality of fasteners, and the chassis (23) is fixedly mounted on the bottom of the auxiliary box through a plurality of fasteners;
the input shaft (1) is mounted on a main box body, the first output shaft (18) is mounted on the main box body and an auxiliary box body, and the second output shaft (31) is mounted on the auxiliary box body.
7. A combine harvester according to claim 6, characterized in that a circlip (3) for the first shaft and a first washer (5) are further provided, the input shaft (1) is further provided with a second groove and a ring of first annular protrusions, the first gear (4) is located between the second groove and the first annular protrusions, the circlip (3) for the first shaft is located in the second groove, the front end face of the first gear (4) abuts against the circlip (3) for the first shaft, the rear end face of the first gear (4) abuts against the first washer (5), and the rear end face of the first washer (5) abuts against the first annular protrusions.
8. A combine harvester according to claim 6, characterized in that a front first conical bearing and a rear first conical bearing (6) are further provided, a first mounting hole is further provided in the main tank, the input shaft (1) is mounted in the first mounting hole through the two first conical bearings (6), a second annular bulge and a third annular bulge are provided on the inner side wall of the first mounting hole, the second annular bulge is located in front of the third annular bulge, wherein the front end face and the rear end face of one first conical bearing (6) are respectively abutted against the first annular bulge and the second annular bulge, and the front end face and the rear end face of the other first conical bearing (6) are respectively abutted against the third annular bulge and the bevel pinion (8);
the clutch is characterized by further comprising a second gasket (7), a stop washer (9) and a nut, wherein the second gasket (7) and the stop washer (9) are respectively located at the front end and the rear end of the small bevel gear (8), the second gasket (7) is located between the first bevel bearing (6) and the small bevel gear (8), the stop washer (9) is located between the small bevel gear (8) and the nut, and the nut is located at the rear end of the input shaft (1) and is in threaded fit with the input shaft (1); thus, the axial play of the bevel pinion (8) can be effectively prevented.
9. A combine harvester according to claim 6, characterised in that a second oil seal (20) and two first ball bearings (11) are provided, the first output shaft (18) being mounted on the front end cap (35) by the first ball bearing (11) at the front end and on the rear end cap (22) by the first ball bearing (11) at the rear end, the second oil seal (20) being located between the first output shaft (18) and the rear end cap (22);
the first output shaft (18) is also provided with a third clamping groove, the second shaft elastic check ring (12) is clamped and installed in the third clamping groove, and the front end face and the rear end face of the second shaft elastic check ring (12) are respectively abutted against a first ball bearing (11) and a second gear (13) which are positioned in front;
and a fourth annular bulge is further arranged on the first output shaft (18), and the front end surface and the rear end surface of the first ball bearing (11) positioned at the rear part are respectively abutted against the fourth annular bulge and the rear end cover (22).
10. A combine harvester according to claim 6, characterised in that a fourth oil seal (32), a second taper bearing (25) and a third ball bearing (29) are provided, the lower half of the second output shaft (31) is mounted on the chassis (23) via the second taper bearing (25), the upper half of the second output shaft (31) is mounted on the sub-tank via the third ball bearing (29), the fourth oil seal (32) is located between the sub-tank and the second output shaft (31);
a third gasket (26) and a fourth gasket (28) which are sleeved on a second output shaft (31) are further arranged, the third gasket (26) is located below the fourth gasket (28), a circle of fifth annular bulge is further arranged on the second output shaft (31), the upper end face and the lower end face of the fourth gasket (28) are respectively abutted against the fifth annular bulge and the large bevel gear, and the upper end face and the lower end face of the third gasket (26) are respectively abutted against the second cone bearing (25) and the large bevel gear;
still be equipped with circlip (33) for the hole, it is protruding still to be equipped with round sixth annular on second output shaft (31), still be equipped with the second mounting hole on the auxiliary box body, second output shaft (31) pass the second mounting hole, the inside wall of second mounting hole still is equipped with the first annular groove of round, circlip (33) for the hole is located in the first annular groove, the lower terminal surface and the protruding counterbalance of sixth annular of third ball bearing (29), the up end and the hole of third ball bearing (29) counterbalance with circlip (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011079841.8A CN112166800B (en) | 2020-10-10 | 2020-10-10 | Combine harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011079841.8A CN112166800B (en) | 2020-10-10 | 2020-10-10 | Combine harvester |
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| Publication Number | Publication Date |
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| CN112166800A true CN112166800A (en) | 2021-01-05 |
| CN112166800B CN112166800B (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011079841.8A Active CN112166800B (en) | 2020-10-10 | 2020-10-10 | Combine harvester |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN112166800B (en) | 2023-04-25 |
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