CN110959367B - Universal header hanging device for combine harvester - Google Patents
Universal header hanging device for combine harvester Download PDFInfo
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- CN110959367B CN110959367B CN201911167503.7A CN201911167503A CN110959367B CN 110959367 B CN110959367 B CN 110959367B CN 201911167503 A CN201911167503 A CN 201911167503A CN 110959367 B CN110959367 B CN 110959367B
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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
- A01D41/06—Combines with headers
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Abstract
The invention discloses a universal header hanging device of a combine harvester, which comprises a header part, a conveying groove part and a hanging mechanism for connecting the header part and the conveying groove part of the combine harvester; the hanging mechanism comprises two hanging parts which are symmetrically arranged and a rotating shaft which is connected with the two hanging parts; the two hanging parts respectively comprise a fixed seat, a connecting rod component, a supporting pipe, a linkage locking component and a handle; the handle moves up and down in the waist hole to drive the connecting rod assembly on the same side to move up and down, the connecting rod assembly drives the rotating shaft to rotate, and the rotating shaft drives the connecting rod assembly on the other hanging part and the handle to move synchronously; the motion of two handles drives the sleeve rotation of homonymy, and the sleeve drives the slide uses the sleeve to rotate as the centre of a circle, and the stirring bolt of slide lower extreme slides along the guide way to drive the round pin axle stretches into or stretches out in the mounting hole that is located the base of the conveying trough portion between two round pin axles and corresponds the position, locks or unblock header part and the connection between the conveying trough portion.
Description
Technical Field
The invention belongs to the field of agricultural machinery, and particularly relates to a header and conveying trough hanging device for a combine harvester.
Background
A grain combine harvester, called a combine harvester for short, is a combine harvester for harvesting crops. Multifunctional and multipurpose combine harvesters often share one chassis, and the aim of harvesting multiple crops is fulfilled by replacing a header. For example, a special header is used for harvesting wheat, another header is used for combined harvesting of rape, and a rape cutting and sunning header and a rape picking header are needed for segmented harvesting of rape. One chassis is equipped with a plurality of headers and uses compatibly, and this device is a quick, high-efficient, labour saving and time saving's of changing the header promptly.
The total value of agricultural machinery industry in 2012 in China reaches 3382 hundred million yuan RMB, which becomes the first major country of global agricultural machinery manufacturing, and the annual output of harvesting machinery breaks through 100 million and is far from leading other countries and regions in the world. However, the current combine harvester type in China is mainly a special type, one combine harvester can only harvest one crop or at most two crops, so that the machine is not enough in busy farming season, and the machine is idle and wasted in other time. The national conditions of more people and less land in China determine that the productivity of unit land must be improved by means of multiple cropping systems so as to meet the effective supply of agricultural products, and most of the regions except northeast and northwest are double cropping or triple cropping in a year. The crop rotation system requires a general combine harvester with multiple purposes, and the special combine harvester has low utilization rate and high purchasing and using cost, and is also one of the important reasons for high production cost of clothing products.
As a heavy agricultural machine, the combine harvester has a complex structure and high technical content, and the development and the improvement of the combine harvester often need more funds and certain technical accumulation. At present, China starts late and progresses slowly in the technical field of universal combine harvesters, and although some researchers actively explore in the aspect of multifunctional combine harvesters, the practicability and the reliability are still insufficient, and the universalization, the serialization and the standardization cannot be realized. In order to improve the utilization rate of the combine harvester and meet the harvesting requirements of different crops, the combine harvester needs to be developed towards a generalization direction, and a generalized high-performance chassis is quickly connected with different cutting tables through a modularized universal interface so as to be suitable for harvesting of various crops, achieve higher harvesting production efficiency and lower grain loss and realize multiple purposes.
Currently, there are some combine harvesters in the market that can have a replaceable header to realize a multi-purpose function, such as a quick-change mechanism of a crop header assembly of a silage harvester disclosed in cn201320300320. x; CN201710341273.6 discloses a header hitch and a combine harvester with the same; CN201721383256.0 is a header quick hitch system. But the header weight is generally heavier, and the manpower is difficult to remove the upset with it, needs loop wheel machine or fork truck to hoist the header, then articulates. And the traditional header hooking mode usually locks the header and the conveying groove from the bottom or two sides of the conveying groove by using a plurality of bolt assemblies, the header is very troublesome to replace, time and labor are wasted, and the problem cannot be solved fundamentally, so that the use efficiency of the combine harvester is reduced, and the harvesting operation is unfavorable for fighting against the farming season.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a universal header hanging device for a combine harvester, aiming at overcoming the defects in the prior art, the header can be replaced quickly and efficiently, and the header hanging ensures the stable connection between the header and a conveying trough.
The technical scheme is as follows: the invention relates to a universal header hanging device of a combine harvester, which comprises a header part, a conveying groove part and a hanging mechanism for connecting the header part and the conveying groove part of the combine harvester; the hanging mechanism comprises two hanging parts which are symmetrically arranged and a rotating shaft which is connected with the two hanging parts; the two hanging parts respectively comprise a fixed seat, a connecting rod component, a supporting pipe, a linkage locking component and a handle;
the two fixed seats are symmetrically arranged on an upper cross beam of the header part, and two ends of the rotating shaft are respectively arranged in the fixed seats and freely rotate in the fixed seats; the two support pipes are perpendicular to the rotating shaft and fixed on two side plates of the header part in parallel, a waist hole is formed in the middle of each support pipe, and the two handles penetrate through the corresponding waist holes respectively; the two groups of connecting rod assemblies respectively extend into the supporting pipes on the same side, the upper ends of the connecting rod assemblies are eccentrically connected with the rotating shaft through connecting plates, and the lower ends of the connecting rod assemblies are rotatably connected with the parts of the handles, which are positioned in the supporting pipes;
the two linkage locking assemblies are respectively arranged on two opposite side surfaces of the two supporting tubes, and each linkage locking assembly comprises two supporting plates, a sleeve hinged between the two supporting plates, a sliding plate fixed on the outer wall of the sleeve, a pin sleeve fixed on the supporting tubes, a pin shaft slidably arranged in the pin sleeve, and a toggle bolt connected with the sliding plate and the pin shaft; the lower end of the sliding plate is provided with a bending section, the bending section is provided with a through hole, the pin sleeve is provided with a guide groove, the pin shaft is provided with a blind hole at a position corresponding to the guide groove, and a toggle bolt sequentially penetrates through the through hole and the guide groove on the bending section of the sliding plate and is inserted into the blind hole of the pin shaft; the two handles penetrate through the end parts of the extending ends of the waist holes of the supporting tube and are fixed on the sleeves at the corresponding sides, and the handles are vertical to the sliding plate;
the hanging part on one side is also provided with a bolt component which is fixed on the supporting tube on the side, a bolt of the bolt component penetrates through the handle on the side to limit the movement of the handle, the bolt is pulled out of the handle, the handle on the side moves up and down in the waist hole to drive the connecting rod component on the same side to move up and down, the connecting rod component drives the rotating shaft to rotate, and the rotating shaft drives the connecting rod component on the other hanging part and the handle to move synchronously; the movement of two handles drives the sleeve of homonymy and rotates, and the sleeve drives the slide uses the sleeve as the centre of a circle to rotate, and the stirring bolt of slide lower extreme slides along the guide way to drive the round pin axle stretches into or stretches out in the mounting hole that is located the conveying groove part corresponding position between two round pin axles, locks or unblock header part and the connection between the conveying groove part.
According to a further preferable technical scheme, a through hole is formed in the part, located in the supporting pipe, of the handle and serves as a first connecting hole, and the part, extending out of the supporting pipe, of the handle on the same side as the bolt assembly is provided with another through hole and serves as a second connecting hole; the lower end of the connecting rod component is hinged to the first connecting hole, and the bolt of the bolt component penetrates through the second connecting hole of the side handle to limit the movement of the handle.
Preferably, the connecting rod assembly comprises a connecting rod and two lugs fixed at two ends of the connecting rod, one end of the connecting rod is fixed at the end of the rotating shaft, the other end of the connecting rod is hinged with the lug at the upper end of the connecting rod, and the lug at the lower end of the connecting rod is hinged to a first connecting hole of the handle in the supporting pipe.
Preferably, the bolt subassembly includes the bolt fixed plate and the bolt of "L" shape, the straight section of bolt fixed plate is fixed on the stay tube, and the vertical end is fixed in the backup pad that is close to straight section, and it has the through-hole to open in the straight section of bolt fixed plate, and the through-hole has also been seted up to corresponding the position in two backup pads, just through-hole and the second connecting hole of homonymy handle in bolt fixed plate and two backup pads are located same straight line, the bolt passes in proper order the through-hole of bolt fixed plate, the through-hole of the backup pad that is close to bolt fixed plate one side, the second connecting hole of handle and the through-hole of another backup pad cooperate with the sleeve that articulates between two backup pads, the restriction.
Preferably, the bolt assembly further comprises a split pin, a spring and a gasket, a through hole is formed in the part, located between the bolt fixing plate and the support plate close to one side of the bolt fixing plate, of the bolt and serves as a lock hole, and the split pin is inserted into the lock hole to limit the distance that the bolt is inserted into or pulled out of the bolt fixing plate; the spring is sleeved on the outer side of the part, located between the bolt fixing plate and the split pin, of the bolt, and the gasket is located between the spring and the split pin.
Preferably, the handle on the same side as the latch assembly is longer than the handle of the other hitching section.
Preferably, a guide part is further arranged between the two hanging parts, the guide part comprises two guide blocks, the two guide blocks are respectively positioned at the joint positions of the two support pipes and the two side plates of the header part, the back and the side surfaces of the guide blocks are respectively fixed with the side plates and the support pipes of the header part at the same side, and the top of the guide blocks is fixed with the upper beam of the header part; the one side that two guide blocks are relative is the inclined plane, and the inclined plane of two guide blocks encloses into one with header part's entablature one side open-ended trapezoidal space structure, and the delivery groove part gets into from this trapezoidal space structure's opening position, and under the inclined plane direction of guide block, with header part overlap joint.
Preferably, the connection position of the header part and the conveying groove part is also provided with a limiting part, and the limiting part comprises a supporting limiting strip arranged at the top end of the conveying groove and a limiting groove arranged at the lower edge of an upper cross beam of the header part; the shape of spacing groove with support the shape of spacing unanimity, the header part is pushed down under the action of gravity with the refute back of transfer groove part, support spacing embedding in the spacing inslot.
Preferably, the cross section of the supporting and limiting block is semicircular, triangular or trapezoidal.
Has the advantages that: (1) in the invention, a hanging part is fixed on a header part, a hanging mechanism comprises two hanging parts which are symmetrically arranged, the two hanging parts are connected through a rotating shaft, a connecting rod component and a linkage locking component of the two hanging parts are connected through a handle to form a linkage mechanism, after the header part and a conveying trough are hung, the handle on one side is rotated by one person, the handle drives the connecting rod component and the handle on the other side to synchronously rotate through the connecting rod component and the rotating shaft on the same side, simultaneously, the sleeve on the same side is driven to rotate by the rotation of the handle, a sliding plate is driven by the sleeve to rotate by the sleeve, a toggle bolt at the lower end of the sliding plate slides along a guide groove to drive a pin shaft to extend out and be inserted into a mounting hole at a corresponding position of the conveying trough part to complete the locking between the conveying, the stability of the connection is ensured; when the header part needs to be replaced, the handle on one side is operated to rotate in the opposite direction, the two connecting assemblies and the linkage locking assembly work in the same opposite direction, the pin shaft exits from the mounting hole in the corresponding position of the conveying groove part, and the conveying groove part and the header part are unlocked; the hanging device is completely operated by a single person, the locking and unlocking of the conveying groove part and the header part are completed through the linkage of all components, and the header can be quickly and efficiently hung or disconnected;
in addition, the handle on one side of the header is provided with the bolt component, the movement of the handle is limited through the bolt component, and because all parts are in linkage relation, as long as the handle is ensured not to rotate, the rest parts can not generate movement change, and the handle can not be accidentally rotated due to misoperation or other factors in the process of connecting the conveying groove part and the header part, so that the connection between the conveying groove part and the header part is influenced;
the hanging device is suitable for various types of grain combine harvesters, only needs to be arranged on the corresponding conveying groove and the corresponding cutting table when in use, can be suitable for the exchange between the cutting tables and the chassis produced by different manufacturers, and has strong universality;
(2) the bolt component comprises a cotter pin, a spring and a gasket besides a bolt fixing plate and a bolt, the bolt is changed into a telescopic bolt through the matching of the cotter pin, the spring and the gasket, the bolt tends to move towards the second connecting hole of the handle under the action of the spring, the handle is kept on the locking device, and when the header part and the conveying groove part need to be unlocked, the handle can be freely rotated only by manually pulling out the bolt to enable the bolt to be separated from the second connecting hole of the handle, so that the structure is ingenious, and the operation is simple; one end of the spring compresses the L-shaped plate, the other end of the spring compresses the gasket and the split pin, and the spring has the function that when the bolt is in a pulled-out state, the bolt can compress the gasket and the split pin under the action of the spring only by loosening the bolt, so that the bolt is inserted into the second connecting hole of the handle and cannot slide out in the use process of the combine harvester, and the connection stability is ensured;
(3) when a farmer uses the harvester and needs to replace the header, the header is heavy, the header can only be placed on the ground or a special header frame, a chassis of the harvester is driven by a manipulator to hang the header, but the conveying grooves and the conveying groove openings are almost as large, the driving proficiency of the manipulator is different, the conveying grooves are difficult to accurately insert into the conveying groove openings on the header, the two conveying grooves which are almost as large are difficult to connect with the conveying groove openings of the header by the walking of the harvester, and even if the skilled manipulator needs to debug for many times, the conveying grooves can be inserted into the conveying groove openings; the guide part of the invention can well solve the problem, the guide part comprises two guide blocks, the opposite surfaces of the two guide blocks are inclined surfaces, the inclined surfaces of the two guide blocks and the conveying notch of the header part enclose a trapezoidal space structure facing one side opening of the conveying notch part, in the hanging process, a manipulator drives the chassis of the harvester to drive the conveying notch part to enter from the lower bottom opening position of the trapezoidal space structure and is connected with the header part under the guide of the inclined surfaces of the guide blocks, and the guide blocks can guide the conveying notch to the conveying notch in the large opening range of the guide part, thereby greatly facilitating the hanging of the header; the guide part is combined with the hanging part, so that the operation difficulty of replacing the header is further reduced, and the operation flow is simplified;
(4) after the header is hung, due to the reasons of uneven weight distribution, friction and the like on the left side and the right side of the header, the wall hanging of the header beam and the front end of the conveying groove is not necessarily completely attached, so that a pin shaft of the linkage locking assembly cannot correspond to an installation hole of the conveying groove part, and the subsequent connection is difficult to complete; therefore, the connection position of the header part and the conveying groove part is also provided with a limiting part, the limiting part comprises a supporting limiting strip arranged at the top end of the conveying groove and a limiting groove arranged at the lower edge of an upper beam of the header part, the conveying groove part is butted with the header part under the guide of the guiding part, the header part is pressed downwards under the action of gravity, the supporting limiting strip and the limiting groove are combined together, the header and the conveying groove are forced to enter a fixed relative position by utilizing the matching of the limiting groove and the supporting limiting strip, and the pin shaft of the linkage locking assembly can be accurately inserted into the mounting hole of the conveying groove part; in addition, after the connection is completed, the bottom of the conveying groove part is fixed by the linkage locking assembly, the top of the conveying groove part is fixed by the limiting part, and the limiting part can assist the linkage locking assembly to stabilize the connection between the header part and the conveying groove part;
(5) according to the invention, the hooking mechanism, the guide part and the limiting part are combined to realize six-degree-of-freedom restriction on the header, after the header part and the conveying groove part are connected, the header part is pressed down under the action of gravity, the supporting limiting strip is embedded into the limiting groove, and the limiting groove and the limiting strip are matched to enable the upper ends of the header and the conveying groove to enter a relatively fixed position so as to limit the header to move downwards and forwards and backwards; at the moment, the inner side of the guide part is matched with the two sides of the conveying groove, and the cutting table and the guide part are fixed in position, so that the cutting table is limited to move left and right; after the pin shaft is locked, the handle, the connecting rod assembly and the rotating shaft are all in a locked state and cannot rotate, so that the header is limited to rotate; in addition, the rotating shaft is arranged in the fixed seat, the rotating shaft can only rotate, and the left and right displacement of the rotating shaft is limited, so that the displacement of the header is also limited; in conclusion, the hooking mechanism, the guide part and the limiting part are combined to realize the full constraint of six degrees of freedom of the header.
Drawings
Fig. 1 is a combination view of the hitching mechanism of the present invention with a header section prior to hitching;
FIG. 2 is an enlarged partial view of the interlock locking assembly and the deadbolt assembly of the present invention;
fig. 3 is a combination view of the hitching mechanism of the present invention after hitching with a header section and trough section;
FIG. 4 is a schematic view of the stopper according to the present invention;
in the figure, 1-rotating shaft, 2-fixed seat, 3-connecting rod assembly, 4-supporting tube, 5-linkage locking assembly, 6-handle, 7-header part, 8-conveying groove part, 9-bolt assembly, 10-guide block, 11-supporting limit bar, 51-supporting plate, 52-sleeve, 53-sliding plate, 54-pin sleeve, 55-pin shaft, 56 toggle bolt, 91-pin fixing plate, 92-pin, 93-split pin and 94-spring.
Detailed Description
The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.
Example (b): a universal header hanging device for a combine harvester comprises a header part, a conveying trough part and a hanging mechanism for connecting the header part and the conveying trough part of the combine harvester. The hanging mechanism comprises two hanging parts and a rotating shaft connected with the two hanging parts. A guide part is arranged between the two hanging parts, and a limiting part is arranged at the connection position of the header part and the conveying groove part.
The composition and connection relationship of each part are explained in detail.
1. A hanging part:
the two hanging parts are symmetrical integrally and respectively comprise a fixed seat, a connecting rod component, a supporting pipe, a linkage locking component and a handle. Except that the handle of one of the hanging parts is longer than the handle of the other side, and a group of bolt components are arranged on the handle.
Two fixing bases are symmetrically installed on an upper cross beam of the header part, four threaded holes are formed in the upper cross beam, the two ends of the rotating shaft are respectively installed in the fixing bases, a pressing plate is covered above the fixing bases and fixed through four bolts, and therefore the rotating shaft is rotatably installed in the fixing bases. The two sections of the rotating shaft are stepped shafts, so that the rotating shaft is ensured not to move axially left and right but can rotate. The connecting plates are welded at two ends of the rotating shaft, one end of each connecting plate is welded with the rotating shaft, the other end of each connecting plate is connected with the corresponding pull rod assembly through bolts and nuts, and the connecting plates can swing up and down along with the rotation of the rotating shaft, so that the pull rod assemblies are driven to move up and down.
The two groups of connecting rod assemblies are respectively inserted into the two corresponding supporting pipes, the two supporting pipes are perpendicular to the rotating shaft and are fixed on the two side plates of the header part in parallel, and the two supporting pipes are respectively provided with a waist hole in the direction parallel to the rotating shaft. The two handles respectively penetrate through the corresponding waist holes of the supporting tube, and a through hole is formed in the part, located in the supporting tube, of the handles and serves as a first connecting hole. The connecting rod assembly comprises a connecting rod and two hanging lugs fixed at the upper end and the lower end of the connecting rod, and the openings of the hanging lugs at the two ends are 90 degrees. The hangers at the upper end of the connecting rod are hinged with the connecting plate through bolts and nuts, and the hangers at the lower end of the connecting rod are hinged with the first connecting hole of the handle in the supporting pipe through bolts and nuts.
The two linkage locking assemblies are respectively arranged on two opposite side surfaces of the two supporting tubes and comprise two supporting plates, a sleeve hinged between the two supporting plates, a sliding plate fixed on the outer wall of the sleeve, a pin sleeve fixed on the supporting tubes, a pin shaft slidably arranged in the pin sleeve and a toggle bolt connected with the sliding plate and the pin shaft. The two supporting plates are welded on two sides of a waist hole of the supporting tube, through holes are formed in the end portions of the supporting plates, and the two supporting plates are hinged to the sleeve through bolts penetrating through the through holes. The end part of the handle and the top part of the sliding plate are respectively welded on the sleeve, and the handle is vertical to the sliding plate. The lower extreme of slide has a bending section, has seted up the through-hole on the bending section, has seted up a guide way on the pin bushing, and the epaxial position of round pin has seted up a blind hole with the guide way corresponding to, stirs the bolt and passes through-hole and the guide way on the slide bending section in proper order, inserts in the blind hole of round pin axle.
The hanging part on one side of the long handle is also provided with a bolt component, and the part of the long handle extending out of the supporting tube is provided with another through hole as a second connecting hole. The bolt assembly comprises an L-shaped bolt fixing plate, a bolt, a split pin, a spring and a gasket. The straight section of the bolt fixing plate is fixed on the supporting tube, the vertical end of the bolt fixing plate is fixed on the supporting plate close to the straight section, the straight section of the bolt fixing plate is provided with a through hole, the corresponding positions of the two supporting plates are also provided with through holes, the through holes on the bolt fixing plate and the two supporting plates are positioned on the same straight line with the second connecting hole of the handle on the same side, the bolt sequentially passes through the through hole of the bolt fixing plate, the through hole of the supporting plate close to one side of the bolt fixing plate, the second connecting hole of the handle and the through hole of the other supporting plate, the part of the bolt between the bolt fixing plate and the supporting plate close to one side of the bolt fixing plate is provided with a through hole as a lock hole; the spring is sleeved on the outer side of the part of the bolt between the bolt fixing plate and the split pin, and the gasket is positioned between the spring and the split pin. The bolt is matched with the sleeve hinged between the two supporting plates to limit the up-and-down movement of the handle.
2. A guide part:
the guide part comprises two guide blocks, the two guide blocks are respectively positioned at the joint positions of the two support pipes and the two side plates of the header part, the back and the side surfaces of the guide blocks are respectively fixed with the side plates and the support pipes of the header part at the same side, and the top of the guide blocks is fixed with the upper beam of the header part; the opposite sides of the two guide blocks are inclined planes, the inclined planes of the two guide blocks and the upper beam of the header part form a trapezoidal space structure facing to an opening on one side of the conveying groove part, and the conveying groove part enters from the opening position of the trapezoidal space structure and is connected with the header part in a connection mode under the guidance of the inclined planes of the guide blocks.
3. A limiting part:
the limiting part comprises a supporting limiting strip arranged at the top end of the conveying groove and a limiting groove arranged at the lower edge of an upper cross beam of the header part; the cross section of the supporting and limiting strip is in one of a semicircular shape, a triangular shape or a trapezoidal shape, and the shape of the limiting groove is consistent with that of the supporting and limiting strip. After the header part and the conveying groove part are connected in a connection mode, the header part is pressed down under the action of gravity, the supporting limiting strips are embedded into the limiting grooves, and the upper ends of the header and the conveying groove are enabled to enter relatively fixed positions through matching between the limiting grooves and the limiting strips.
The matching motion process and the realization principle of each part are as follows:
i, the header part is separated from the conveying groove part: firstly, the bolt is pulled out outwards, the spring is in a compressed state through the extrusion of the cotter pin and the gasket, the bolt extends out of the second connecting hole of the long handle, and the long handle can rotate by taking the sleeve as a rotating shaft. The long handle rotates clockwise to drive the slide plate at the same side to rotate clockwise by taking the sleeve as a rotating shaft, and the bolt is shifted to drive the pin at the same side to slide towards the support tube at the same side; meanwhile, the long handle drives the pull rod assembly to move upwards, the pull rod assembly enables the connecting plates to rotate around the rotating shaft, the rotating shaft rotates to drive the connecting plate on the other side to rotate on the same principle, the other hanging part moves synchronously, and the pin shaft on the side slides towards the supporting tube on the side. This state is the docking mechanism open state. When the slide rotated, not only had the displacement to drive round pin axle horizontal migration in the horizontal direction, also had the displacement in vertical direction, nevertheless because slide bottom through-hole is bigger than toggle bolt diameter, the displacement of vertical direction offsets along toggle bolt axial displacement through slide bottom through-hole to guarantee that the round pin axle is at round pin cover internal water translation and move.
II, hanging the header: after the locking of the cutting table part and the conveying groove part is released, a manipulator operates a chassis to move the conveying groove up and down, a supporting limit strip on the conveying groove is separated from an upper cross beam of the cutting table, so that the cutting table is separated from the chassis, the harvester chassis is driven to be in butt joint with a new cutting table, the manipulator drives the harvester chassis to drive the conveying groove part to enter from the lower bottom opening position of the trapezoidal space structure of the guide part and is in butt joint with the cutting table part under the guide of the inclined plane of the guide block, and the guide block can guide the conveying groove to the conveying groove opening in the large opening range of the guide part, so that the hanging of the cutting table is; the guide part is combined with the hanging part, so that the operation difficulty of replacing the header is further reduced, and the operation flow is simplified; after the header articulates, utilize spacing groove and spacing cooperation to force header and conveyer trough to get into fixed relative position, ensure that the round pin axle of linkage locking subassembly can accurately insert the mounting hole of conveyer trough portion.
III, locking the relative position between the header part and the conveying groove part: when the header part and the conveying groove are hooked and connected to enter a fixed position, the conveying groove is operated by a manipulator to be lifted upwards, the header is separated from the ground due to the support of the support limiting strip, meanwhile, a mounting hole of a base of the conveying groove is close to the pin shaft, so that the mounting hole and the pin shaft are on the same axis, and the long handle is manually operated to rotate anticlockwise to rotate by taking the sleeve as a center; on one hand, the long handle drives the sliding plate on the same side to rotate simultaneously, and the sliding plate drives the toggle bolt and the pin shaft to move in the pin sleeve in the direction away from the supporting pipe on the same side and insert into the mounting hole at the bottom of the conveying trough; on the other hand, the long handle rotating anticlockwise drives the hanging part on the other side to move synchronously with the connecting rod assembly and the rotating shaft, and the pin shaft on the other side also moves in the direction far away from the supporting pipe on the same side and is inserted into the mounting hole at the bottom of the conveying trough; after the steps are completed, the bolt is released and is inserted into the second connecting hole of the long handle, so that the long handle is fixed, the linkage mechanism is completely fixed, and at the moment, one half of the pin shaft is arranged in the conveying groove base, and the other half of the pin shaft is arranged in the pin sleeve, so that the relative positions of the header and the conveying groove are locked.
As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A universal header hanging device for a combine harvester comprises a header part, a conveying trough part and a hanging mechanism for connecting the header part and the conveying trough part of the combine harvester; the method is characterized in that: the hanging mechanism comprises two hanging parts which are symmetrically arranged and a rotating shaft which is connected with the two hanging parts; the two hanging parts respectively comprise a fixed seat, a connecting rod component, a supporting pipe, a linkage locking component and a handle;
the two fixed seats are symmetrically arranged on an upper cross beam of the header part, and two ends of the rotating shaft are respectively arranged in the fixed seats and freely rotate in the fixed seats; the two support pipes are perpendicular to the rotating shaft and fixed on two side plates of the header part in parallel, a waist hole is formed in the middle of each support pipe, and the two handles penetrate through the corresponding waist holes respectively; the two groups of connecting rod assemblies respectively extend into the supporting pipes on the same side, the upper ends of the connecting rod assemblies are eccentrically connected with the rotating shaft through connecting plates, and the lower ends of the connecting rod assemblies are rotatably connected with the parts of the handles, which are positioned in the supporting pipes;
the two linkage locking assemblies are respectively arranged on two opposite side surfaces of the two supporting tubes, and each linkage locking assembly comprises two supporting plates, a sleeve hinged between the two supporting plates, a sliding plate fixed on the outer wall of the sleeve, a pin sleeve fixed on the supporting tubes, a pin shaft slidably arranged in the pin sleeve, and a toggle bolt connected with the sliding plate and the pin shaft; the lower end of the sliding plate is provided with a bending section, the bending section is provided with a through hole, the pin sleeve is provided with a guide groove, the pin shaft is provided with a blind hole at a position corresponding to the guide groove, and a toggle bolt sequentially penetrates through the through hole and the guide groove on the bending section of the sliding plate and is inserted into the blind hole of the pin shaft; the two handles penetrate through the end parts of the extending ends of the waist holes of the supporting tube and are fixed on the sleeves at the corresponding sides, and the handles are vertical to the sliding plate;
the hanging part on one side is also provided with a bolt component which is fixed on the supporting tube on the side, a bolt of the bolt component penetrates through the handle on the side to limit the movement of the handle, the bolt is pulled out of the handle, the handle on the side moves up and down in the waist hole to drive the connecting rod component on the same side to move up and down, the connecting rod component drives the rotating shaft to rotate, and the rotating shaft drives the connecting rod component on the other hanging part and the handle to move synchronously; the movement of two handles drives the sleeve of homonymy and rotates, and the sleeve drives the slide uses the sleeve as the centre of a circle to rotate, and the stirring bolt of slide lower extreme slides along the guide way to drive the round pin axle stretches into or stretches out in the mounting hole that is located the conveying groove part corresponding position between two round pin axles, locks or unblock header part and the connection between the conveying groove part.
2. A universal header hitching apparatus for a combine harvester according to claim 1, wherein a through hole is formed in a part of the handle positioned in the supporting pipe to serve as a first connecting hole, and another through hole is formed in a part of the handle on the same side as the latch assembly extending out of the supporting pipe to serve as a second connecting hole; the lower end of the connecting rod component is hinged to the first connecting hole, and the bolt of the bolt component penetrates through the second connecting hole of the side handle to limit the movement of the handle.
3. A universal header hitch of a combine harvester according to claim 2, wherein the linkage assembly comprises a link and two lugs fixed to opposite ends of the link, one end of the link is fixed to the end of the pivot shaft and the other end is hinged to a lug on the upper end of the link, and a lug on the lower end of the link is hinged to a first connection hole in the support tube in the handle.
4. A universal header hitch attachment of combine harvester according to claim 2, characterized in that the bolt subassembly includes the bolt fixed plate and the bolt of "L" shape, the straight section of bolt fixed plate is fixed on the stay tube, and the vertical end is fixed in the backup pad that is close to straight section, and it has the through-hole to open on the straight section of bolt fixed plate, and the through-hole has also been seted up to corresponding position on two backup pads, just through-hole and the second connecting hole of homonymy handle on bolt fixed plate and two backup pads are located same straight line, the bolt passes in proper order the through-hole of bolt fixed plate, the through-hole of the backup pad that is close to bolt fixed plate one side, the second connecting hole of handle and the through-hole of another backup pad, and the bush cooperation that articulates between two backup pads, restriction the up.
5. The universal header hitching apparatus for the combine harvester according to claim 4, wherein the latch assembly further comprises a cotter pin, a spring and a gasket, a through hole is formed in a part of the latch between the latch fixing plate and the supporting plate close to one side of the latch fixing plate to serve as a locking hole, and the cotter pin is inserted into the locking hole to limit the distance for inserting or extracting the latch into or out of the latch fixing plate; the spring is sleeved on the outer side of the part, located between the bolt fixing plate and the split pin, of the bolt, and the gasket is located between the spring and the split pin.
6. A combine universal header hitch according to claim 2, wherein the handle on the same side as the latch assembly is longer than the handle of the other hitch portion.
7. A universal header hitching apparatus for a combine harvester according to claim 1, wherein a guide part is further arranged between the two hitching parts, the guide part comprises two guide blocks, the two guide blocks are respectively positioned at the joint positions of the two support pipes and the two side plates of the header part, the back surface and the side surface of the guide block are respectively fixed with the side plates and the support pipes of the header part at the same side, and the top part of the guide block is fixed with the upper beam of the header part; the one side that two guide blocks are relative is the inclined plane, and the inclined plane of two guide blocks encloses into one and meets to one side open-ended trapezoidal space structure of conveying trough portion with the transport notch of header part, and conveying trough portion gets into from this trapezoidal space structure's opening position, and under the inclined plane direction of guide block, with header part refutes and connects.
8. A universal header hitching apparatus for a combine harvester according to claim 7, characterized in that the docking position of the header part and the conveying trough part is further provided with a limiting part, the limiting part comprises a supporting limiting strip arranged at the top end of the conveying trough and a limiting trough arranged at the lower edge of the upper beam of the header part; the shape of spacing groove with support the shape of spacing unanimity, the header part is pushed down under the action of gravity with the refute back of transfer groove part, support spacing embedding in the spacing inslot.
9. A universal header hitch of a combine harvester according to claim 8, wherein the cross-section of the support and limit bar is semi-circular, triangular or trapezoidal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911167503.7A CN110959367B (en) | 2019-11-25 | 2019-11-25 | Universal header hanging device for combine harvester |
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| CN201911167503.7A CN110959367B (en) | 2019-11-25 | 2019-11-25 | Universal header hanging device for combine harvester |
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| CN111903655B (en) * | 2020-06-30 | 2022-10-11 | 农业农村部南京农业机械化研究所 | Multifunctional field management robot capable of quickly disassembling and replacing machines |
| CN112119744B (en) * | 2020-09-30 | 2024-05-31 | 广东省现代农业装备研究所 | Linkage control mechanism and weeding equipment |
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