CN214178128U - Gap adjusting device for concave plate sieve and threshing cylinder of grain harvester - Google Patents
Gap adjusting device for concave plate sieve and threshing cylinder of grain harvester Download PDFInfo
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- CN214178128U CN214178128U CN202022702927.3U CN202022702927U CN214178128U CN 214178128 U CN214178128 U CN 214178128U CN 202022702927 U CN202022702927 U CN 202022702927U CN 214178128 U CN214178128 U CN 214178128U
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Abstract
The utility model provides a corn harvester is with concave sieve and threshing cylinder clearance adjustment device, is including setting up the regulating lever subassembly in threshing chamber, setting up the subassembly of controlling in the driver's cabin to and connect the regulating lever subassembly and control the link assembly between the subassembly, can carry out two kinds of regulations of coarse adjusting and fine setting to the corn harvester concave sieve and threshing cylinder clearance, two kinds of regulation mode cooperations can realize that concave sieve and threshing cylinder clearance are "stepless" regulation in certain extent. The utility model discloses a corn harvester is with notch board sieve and threshing cylinder clearance adjustment device, the user can be adjusted harvester notch board sieve and threshing cylinder clearance according to the needs of reaping different crops, and it is simple swift to manipulate, can realize notch board sieve and threshing cylinder clearance "stepless" regulation in the certain limit to can carry out differentiation regulation to harvester notch board sieve and threshing cylinder entry clearance and export clearance, improve the working property, realize a tractor serves several purposes.
Description
Technical Field
The utility model relates to the technical field of harvesters, in particular to a concave sieve and threshing cylinder clearance adjusting device for a grain harvester.
Background
In the prior art, a product threshing device of a grain harvester mainly comprises a threshing cylinder and a concave sieve. The concave plate sieve and the threshing roller work in a matching way, not only can threshing the grains be completed, but also the threshed grain mixture can be primarily screened. However, different types of crops require different gaps between the concave plate screen and the threshing cylinder during threshing. Therefore, in order to meet the harvesting requirements of different crops, the clearance between the concave plate sieve and the threshing cylinder can be conveniently and quickly adjusted, and the stepless adjustment of the threshing clearance can be preferably realized within a certain range, so that the harvesting operation of the harvester on different crops under different working conditions is met. And under specific conditions, the inlet gap and the outlet gap between the concave plate sieve and the threshing cylinder can be adjusted in a differentiated mode, so that the operation performance is improved, and the requirements of different users on the harvesting quality are met.
The patent of the national intellectual property office in 2018, 08 month 03, for the utility model: "a single vertical axial flow combine harvester capable of adjusting threshing gap", patent application number is: 201721705150.8, the filing date of the patent is: day 08, 12 months 2017, with the announcement number: CN 207678329U. The utility model discloses a single longitudinal axial flow combine harvester capable of adjusting threshing clearance, which comprises a harvester main body, a roller and a threshing concave plate; the harvester comprises a harvester main body, a clamping shaft and a gap adjusting mechanism are fixed at the front end of the harvester main body, and the clamping shaft comprises two parts which are horizontally and parallelly arranged along the axial direction of a threshing concave plate; threshing concave, its radial one end has outside flange structure, flange structure arranges in the clearance of two centre gripping axles in, threshing concave can rotate along the centre gripping axle of below, threshing concave radial other end is equipped with the fixed plate along its axial, the equipartition has a plurality ofly rather than articulated first link mechanism on the fixed plate, the upper end of a plurality of first link structures is fixed with same regulation rocking arm, is fixed with second link mechanism on the regulation rocking arm, second link mechanism is articulated with clearance adjustment mechanism. The patent can solve the problem of adjusting the gap between the harvester roller and the threshing concave plate. The defects that the adjusting process is complex, the gap between the roller and the threshing concave plate can not be adjusted quantitatively according to the harvesting of different crops, and the inlet gap and the outlet gap between the concave plate sieve and the threshing roller can not be adjusted respectively.
In order to overcome the defects, a concave plate sieve and threshing cylinder gap adjusting device which is convenient and quick to adjust, can realize stepless adjustment of the threshing gap within a certain range and can perform differential adjustment on an inlet gap and an outlet gap between a concave plate sieve and a threshing cylinder is needed to be developed.
Disclosure of Invention
The technical purpose of the utility model is that: the utility model provides a grain harvester is with concave sieve and threshing cylinder clearance adjusting device, the user can adjust harvester concave sieve and threshing cylinder clearance according to the needs of reaping different crops, manipulates simple swiftly, can realize concave sieve and threshing cylinder clearance "stepless" regulation in certain extent to can carry out the differentiation to adjust harvester concave sieve and threshing cylinder entry clearance and export clearance, improve the working property, realize a tractor serves several purposes.
The utility model discloses a solve above-mentioned technical problem, the technical scheme who adopts is: a gap adjusting device of a concave sieve and a threshing cylinder for a grain harvester comprises an adjusting rod component arranged in a threshing chamber, an operating component arranged in a cab, and a connecting rod component connected between the adjusting rod component and the operating component, wherein the adjusting rod component consists of a left adjusting rod assembly, a right adjusting rod assembly and two rear adjusting rod assemblies which are respectively arranged at four corners of the concave welding assembly, the left adjusting rod assembly and the right adjusting rod assembly have the same structure and respectively comprise a suspender I and a suspender welding assembly which are arranged at intervals up and down, an adjusting bolt capable of adjusting the gap between the bottom end of the suspender I and the top end of the suspender welding assembly is also arranged between the bottom end of the suspender I and the top end of the suspender welding assembly, the rear adjusting rod assembly comprises a suspender III and a suspender IV which are arranged at intervals up and down, and an adjusting bolt capable of adjusting the gap between the top end of the suspender III and the bottom end of the suspender IV is also, in the axial direction of the concave plate welding piece, the top ends of the hanging rod I and the hanging rod III which are positioned at one axial end of the concave plate welding piece are fixed through a pin shaft, so that the whole adjusting rod assembly has a bilateral symmetry structure at the two axial ends of the concave plate welding piece, and the gap between a concave plate sieve on the concave plate welding piece and a threshing roller on the upper part of the concave plate welding piece can be changed through adjusting an adjusting bolt;
the connecting rod assembly comprises an adjusting rod shaft welding piece, a hanger rod seat welding piece and a connecting rod, wherein an adjusting rod shaft is arranged in the adjusting rod shaft welding piece, one end of the adjusting rod shaft is connected with a pin shaft of a left side adjusting rod piece and a rear side adjusting rod piece, the top ends of the left side adjusting rod piece and the rear side adjusting rod piece are fixed through the pin shaft, one end of the adjusting rod shaft is fixed with one end of the connecting rod through a group of seat plates arranged on the outer surface of the adjusting rod shaft, a group of seat plates are further arranged between the two ends of the adjusting rod shaft, the group of seat plates are connected with a pin shaft of a right side adjusting rod piece and a rear side adjusting rod piece, the top ends of the right side adjusting rod piece and the rear side adjusting rod piece are fixed through the pin shaft, and the other end of the connecting rod is connected with the control assembly, so that the connecting rod can drive the adjusting rod shaft welding piece and the hanger rod seat welding piece to rotate under the action of the control assembly to further drive the whole adjusting rod assembly to adjust up and down;
the control assembly comprises a rotating shaft welding piece, a toothed plate welding piece and a control handle welding piece, wherein one end of the rotating shaft welding piece is fixed with the connecting rod, the other end of the rotating shaft welding piece is connected with the tail end of the control handle welding piece, a toothed plate is arranged in the toothed plate welding piece and is in a circular arc shape, a plurality of meshing teeth are arranged on the outer circumference of the circular arc-shaped toothed plate, the control handle welding piece comprises a control tube, a support plate, a claw block and a pull rod, one end of the support plate is fixed on the outer wall surface of the control tube, a shaft sleeve I is fixed at the other end of the support plate and is fixed with the tail end of the rotating shaft welding piece, an installation shaft for fixing the claw block is further arranged in the middle of the support plate in a penetrating mode, the toothed plate is also fixed on the support plate, the meshing teeth on the toothed plate can be matched with the claw block to realize meshing fixation, the pull rod is arranged in the control tube in a penetrating mode, and one end of the pull rod is connected with the claw block, the other end of the pull rod is connected with a button, and the button can drive the claw block to select the meshing teeth on the circular arc toothed plate through the pull rod, so that the gap between the concave plate sieve and the threshing cylinder is adjusted.
Preferably, jib seam piece include jib II and folded plate, the folded plate butt joint sets up the top at jib II, and the bottom of folded plate and jib I is passed through adjusting bolt and is connected.
Preferably, the pin shaft is positioned through a cotter pin.
Preferably, the adjusting rod shaft is further provided with a mounting seat for fixing the adjusting rod shaft in the threshing chamber.
Preferably, the adjusting rod shaft welding assembly comprises an adjusting rod shaft and two groups of seat plates, a flat key groove is formed in one end of the adjusting rod shaft, the two groups of seat plates are sleeved at one end of the adjusting rod shaft, which is not provided with the flat key groove, each group of seat plates is composed of two seat plates I, each seat plate I is provided with two through holes, one through hole is sleeved and fixed on the adjusting rod shaft, the other through hole is used for fixing the tail end of a pin shaft or a connecting rod at the top of the right-side adjusting rod assembly and the rear-side adjusting rod assembly, the through holes in the two seat plates I in the same group of seat plates are coaxially arranged, and an included angle ranging from 45 degrees to 135 degrees is formed between the center axes of the two groups of seat plates.
Preferably, the hanger rod seat seam piece include axle sleeve II and fix two bedplate II on II lateral walls of axle sleeve, processing has flat keyway in the hole of axle sleeve II, this flat keyway cooperates with the flat keyway on the regulating lever axle and the flat key of peripheral hardware, realizes that locking between regulating lever axle seam piece and the hanger rod seat seam piece is fixed, bedplate II on seted up connect the through-hole, connect the through-hole on two bedplate II all fix on the round pin axle at left side regulation pole piece and rear side regulation pole piece top.
Preferably, rotation axis seam piece include rotation axis and two bedplate III, the one end processing of rotation axis has flat keyway, this flat keyway can be fixed with the cooperation of axle sleeve I in the control handle closes the piece, the other end at the rotation axis is worn to establish by two bedplate III, bedplate III on seted up connect the via hole, connect the via hole on two bedplate III all fix the end at the connecting rod.
Preferably, the rotating shaft is further provided with a support and a support frame for fixing the rotating shaft in the cab, and the rotating shaft is further provided with an oil cup for supplying lubricating oil to the rotating shaft.
Preferably, in the rotating shaft welding piece, a handle sleeve is arranged on the outer surface of one end, provided with the button, of the control tube, the button is connected with the pull rod through threads, a flat key groove is machined in an inner hole of the shaft sleeve I, an included angle of 30-60 degrees is formed between the central line of the flat key groove and the central axis of the control tube, and a buffer spring is further connected between the claw block and the tail end of the control tube.
Preferably, the toothed plate welding assembly is connected to a support plate of the operating handle assembly through a fixed support.
The utility model has the advantages that:
1. the utility model discloses a clearance adjustment device has two kinds of adjustment modes of coarse adjusting and fine setting to the regulation in harvester notch board sieve and threshing cylinder clearance, and two kinds of adjustment modes cooperate and can realize the notch board sieve and the "stepless" regulation of threshing cylinder clearance in certain extent. The rough adjustment can be completed by the control handle at the position of the driving platform. If the clearance between the concave sieve and the threshing cylinder can not meet the use requirement through rough adjustment, the clearance between the concave sieve and the threshing cylinder can be adjusted to the standard of the use requirement through a fine adjustment method. The fine adjustment method is realized by respectively adjusting the left adjusting rod assembly, the right adjusting rod assembly and the adjusting bolts between the two rear adjusting rod assemblies. The two adjusting modes of rough adjustment and fine adjustment of the clearance between the concave sieve and the threshing cylinder of the harvester can be complemented beneficially, stepless adjustment in a certain range is realized, the requirement of a user on the clearance between the concave sieve and the threshing cylinder when the user harvests different crops is met, and the multifunctional harvester is multipurpose.
2. The utility model discloses a clearance adjustment device simple structure, convenient to use can make the user can accomplish the automatic adjustment in harvester notch board sieve and threshing cylinder clearance through operating handle in the driver's cabin position, and easy operation is convenient, uses reliably safely.
3. The utility model discloses a clearance adjustment device closes piece and two rear side regulation poles through adjusting the adjusting bolt who closes in the piece to left side regulation pole, right side regulation pole and adjusts respectively, can realize showing the differentiation adjustment that improves threshing separation performance to harvester notch board sieve and threshing cylinder entry clearance and export clearance, increases the smooth and easy nature of circulation of material.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic diagram showing the result of the concave plate seam piece of the present invention;
FIG. 4 is a schematic structural view of the left side adjusting rod assembly of the present invention;
FIG. 5 is a schematic structural view of the rear adjusting rod assembly of the present invention;
fig. 6 is a schematic structural view of a welding member of the adjusting rod of the present invention;
FIG. 7 is a schematic structural view of a welded part of a boom seat of the present invention;
FIG. 8 is a schematic structural view of a rotating shaft welded part of the present invention;
fig. 9 is a schematic structural view of a welding piece of a toothed plate of the present invention;
FIG. 10 is a schematic structural view of a combined part of the manipulating handle according to the present invention;
reference numerals: 1. concave plate welding piece, 1.1, side plate, 1.2, transverse plate, 1.3, reinforcing middle plate, 1.4, concave plate screen bar, 1.5, baffle, 2, left side adjusting rod welding piece, 2.1, suspender welding piece, 2.2, suspender I, 2.3, adjusting bolt, 3, rear side adjusting rod welding piece, 3.1, suspender III, 3.2, suspender IV, 4, right side adjusting rod welding piece, 5, pin shaft, 6, adjusting rod shaft welding piece, 6.1, adjusting rod shaft, 6.2, seat plate I, 7, suspender seat welding piece, 7.1, shaft sleeve II, 7.2, seat plate II, 8, mounting seat, 9, connecting rod, 10, rotating shaft welding piece, 10.1, rotating shaft, 10.2, seat plate III, 11, supporting frame, 12, support, 13, toothed plate welding piece, 13.1, toothed plate, 13.2, mounting shaft sleeve, 14, fixing support, 15, operating handle welding piece, 15.1, operating support welding piece, 15.1, operating shaft sleeve I, supporting plate, 15.25, 351, 3.2, supporting plate, 3 shaft sleeve I, 15.2, a claw block, 15.3, a pull rod, 15.4, a button, 15.5, a buffer spring, 15.6, a handle sleeve, 16, a set screw, 17 and an oil cup.
Detailed Description
The invention will be described in further detail with reference to the following drawings and specific embodiments:
example 1
As shown in fig. 1 to 10, a clearance adjusting device for a concave sieve and a threshing cylinder of a grain harvester comprises: concave plate seam piece 1, left side regulation pole close piece 2, rear side regulation pole close piece 3, right side regulation pole close piece 4, round pin axle 5, regulating rod axle seam piece 6, jib seat seam piece 7, mount pad 8, connecting rod 9, rotation axis seam piece 10, support frame 11, support 12, pinion rack seam piece 13, fixed bolster 14, control handle close piece 15, holding screw 16, oil cup 17 and a plurality of bolt, nut, parallel key, gasket, split pin etc.. The left side adjusting rod assembly 2, the right side adjusting rod assembly 4 and the two rear side adjusting rod assemblies 3 are respectively arranged at four corners of the concave plate welding assembly 1, and the left side adjusting rod assembly 2 and one rear side adjusting rod assembly 3 are fixedly connected to the left side of the concave plate welding assembly 1 through bolts; the right side adjusting rod assembly 4 and the rear side adjusting rod assembly 3 are fixedly connected to the right side of the concave plate welding assembly 1 through another bolt. Connecting a lifting rod seat welding part 7 with a left side adjusting rod part 2 and a rear side adjusting rod part 3 which are positioned on the left side of a concave plate welding part 1 through a pin shaft 5, and positioning by using a cotter pin; the adjusting rod shaft welding part 6 is connected with the right side adjusting rod part 4 and the rear side adjusting rod part 3 which are positioned on the right side of the concave plate welding part 1 through a pin shaft 5 and positioned by using a cotter pin. Two mounting seats 8 are arranged on the left side and the right side of the adjusting rod shaft welding part 6 and are fixedly connected to the left side wall and the right side wall of the threshing chamber respectively through bolts; the adjusting rod shaft welding part 6 penetrates through the lifting rod seat welding part 7 to be connected and is fixed through a gasket, a bolt and a flat key;
the adjusting rod shaft welding part 6 and the rotating shaft welding part 10 are connected through two pin shafts 5 by a connecting rod 9 and are positioned by a cotter pin and a gasket; connecting a support frame 11 on the rotating shaft welding part 10, and fixedly connecting the support frame 11 on the rear side wall of the cab through bolts; the operating handle assembly 15 is connected to the rotating shaft welding assembly 10 and is fixed through a set screw 16 and a flat key; the oil cup 17 is fixedly connected in a threaded hole which is preset on the operating handle assembly 15 and is used for supplying lubricating oil; connecting a support 12 to the rotating shaft welding part 10, fixedly connecting the support 12 to the rear side wall of the cab through a bolt, and positioning the rotating shaft welding part 10 and the support 12 by using a gasket and a nut; the toothed plate welding part 13 is connected to the control handle part 15 through a fixed support 14, and the fixed support 14 is fixedly connected with the control handle part 15 through a bolt; one mounting seat 8 is connected to the toothed plate weldment 13, and the mounting seat 8 is fixedly connected with the cab inner bracket by using bolts.
In the above parts, the recessed plate welded component 1 includes: side plates 1.1, transverse plates 1.2, reinforced middle plates 1.3, concave plate screen bars 1.4 and baffle plates 1.5; fixedly connecting two side plates 1.1, ten transverse plates 1.2 and four reinforcing middle plates 1.3, sequentially penetrating forty-two concave plate screen bars 1.4 through holes in the fixedly connected ten transverse plates 1.2, and fixedly connecting two baffle plates 1.5 on the two transverse plates 1.2 on the outermost side. By adjusting the gap between the concave plate welding part 1 and the threshing cylinder, the concave plate welding part 1 can be matched with the threshing cylinder to thresh and separate different crops.
The left side adjustment lever assembly 2 includes: a suspender welding part 2.1, a suspender I2.2 and an adjusting bolt 2.3; the boom weldment 2.1 comprises: a suspender II 2.1.1 and a folded plate 2.1.2; firstly, fixedly connecting the suspender II 2.1.1 and the folded plate 2.1.2 to form an L-shaped suspender welding part 2.1 with a downward opening, then connecting the suspender welding part 2.1 and the suspender I2.2 through an adjusting bolt 2.3, and positioning by using a nut. The left adjusting rod assembly 2 is mainly used for adjusting the gap between the concave screen and the threshing cylinder by pulling the front part of the left side of the concave welding assembly 1.
The right side adjusting rod assembly 4 and the left side adjusting rod assembly 2 have the same structure, and the right side adjusting rod assembly 4 adjusts the gap between the concave plate sieve and the threshing cylinder by pulling the front part of the right side of the concave plate welding assembly 1.
The rear side adjustment lever assembly 3 includes: 3.1 parts of a suspender III, 3.2 parts of a suspender IV and 2.3 parts of an adjusting bolt; the suspender III 3.1 and the suspender IV 3.2 are connected through an adjusting bolt 2.3 and are positioned by a nut. The two rear side adjusting rod assemblies 3 respectively pull the left side and the right side of the rear part of the concave plate welding assembly 1 to adjust the clearance between the concave plate sieve and the threshing cylinder.
The adjustment rod shaft weldment 6 includes: an adjusting rod shaft 6.1 and a seat plate I6.2; wherein a flat key groove is processed on the adjusting rod shaft 6.1; each seat plate I6.2 is provided with two through holes, every two of the four seat plates I6.2 are divided into a group, one through hole of the first group of two seat plates I6.2 penetrates through one end of the adjusting rod shaft 6.1 without a flat key groove and then is fixedly connected, the other through hole of the fixedly connected two seat plates I6.2 is ensured to be coaxial, and a connecting line of the centers of the two through holes of the group of two seat plates I6.2 and the central line of the flat key groove of the adjusting rod shaft 6.1 form an included angle of 180 degrees; then one through hole of the second group of two seat plates I6.2 penetrates through one end of the adjusting rod shaft 6.1 without a flat key groove, the distance between the second group of two through holes and the shaft head of the end without the flat key groove is shorter than that between the first group of two through holes and the shaft head of the end without the flat key groove, the second group of two seat plates I6.2 are fixedly connected, the other through hole on the two fixedly connected seat plates I6.2 is coaxial, the connecting line of the centers of the two through holes on the group of two seat plates I6.2 and the connecting line of the centers of the two through holes on the first group of two seat plates I6. The regulating rod shaft welding part 6 and the hanging rod seat welding part 7 are matched for use, so that the left regulating rod part 2, the right regulating rod part 4 and the two rear regulating rod parts 3 can be connected together, and the joint regulation of the gap between the concave plate welding part 1 and the threshing cylinder is realized.
The hanger base welded part 7 includes: a shaft sleeve II 7.1 and a seat plate II 7.2; wherein, a flat key groove is processed in the inner hole of the shaft sleeve II 7.1; and the two seat plates II 7.2 are fixedly connected with the outer side walls of the shaft sleeves II 7.1, so that the through holes on the two seat plates II 7.2 are coaxial, and the connecting line of the centers of the two through holes on the seat plates II 7.2 forms an included angle of 180 degrees with the central line of the flat key groove of the shaft sleeve 7.1. The hanger rod seat welding part 7 and the regulating rod shaft welding part 6 are matched for use, so that the left regulating rod assembly part 2, the right regulating rod assembly part 4 and the two rear regulating rod assembly parts 3 can be connected, and the joint regulation of the gap between the concave plate welding part 1 and the threshing cylinder is realized.
The rotating shaft welded component 10 includes: a rotating shaft 10.1 and a seat plate III 10.2; wherein, a flat key slot is processed on the rotating shaft 10.1; the rotating shaft 10.1 sequentially penetrates through one of the through holes on the two seat plates III 10.2 and then is fixedly connected, the other through hole on the two fixedly connected seat plates III 10.2 is coaxial, and the connecting line of the centers of the two through holes on the seat plates III 10.2 forms an included angle of 180 degrees with the central line of the flat key groove of the rotating shaft 10.1. The rotation shaft engaging member 10 is mainly used for transmitting an operating torque of the operating handle engaging member 15.
The tooth plate weldment 13 comprises: a toothed plate 13.1 for mounting a shaft 13.2; the toothed plate 13.1 is arc-shaped, a plurality of meshing teeth are formed in the outer circumference of the arc-shaped toothed plate 13.1, a through hole is formed in the bottom end of the toothed plate 13.1, and the mounting shaft 13.2 penetrates through the through hole in the bottom of the toothed plate 13.1 and then is fixedly connected with the through hole. The tooth shape of the toothed plate 13.1 on the toothed plate welding part 13 is meshed with the claw block 15.2 on the operating handle part 15, so that the quantitative adjustment of the gap between the concave plate sieve and the threshing roller can be realized.
The bar handle assembly 15 includes: a control bracket welding piece 15.1, a claw block 15.2, a pull rod 15.3, a button 15.4, a buffer spring 15.5 and a handle sleeve 15.6; wherein the handling frame seam 15.1 comprises: the operating tube 15.1.1, the support plate 15.1.2, the shaft sleeve I15.1.3 and the mounting shaft 15.1.4; wherein, the pull rod 15.3 is provided with an external thread; the button 15.4 is provided with an internal thread; a flat key groove is processed in an inner hole of the shaft sleeve I15.1.3, and a jackscrew hole is processed at a position which forms an included angle of 90 degrees with the central line of the flat key groove; fixedly connecting a support plate 15.1.2 with the outer side wall of a shaft sleeve I15.1.3, fixedly connecting an installation shaft 15.1.4 through three hole sites in the middle of the support plate 15.1.2, fixedly connecting one end of a control tube 15.1.1 with a small hole with the support plate 15.1.2 to form a control bracket welding part 15.1, wherein the central line of a flat key groove of the shaft sleeve I15.1.3 on the fixedly connected control bracket welding part 15.1 and the axis of the control tube 15.1.1 form a beta angle, and the beta angle ranges from 30 degrees to 60 degrees; the claw piece 15.2 is connected through the mounting shaft 15.1.4 and positioned by a cotter pin; the pull rod 15.3 penetrates through an inner hole of the operating pipe 15.1.1 and is connected with the claw block 15.2; the button 15.4 and the pull rod 15.3 are connected through threads; the buffer spring 15.5 is respectively connected with the claw block 15.2 and the control tube 15.1.1; the handle sleeve 15.6 is connected to the handling tube 15.1.1. The gap between the concave sieve and the threshing cylinder can be adjusted roughly and quantitatively by operating the operating handle assembly 15.
The utility model relates to a concave sieve and threshing cylinder clearance adjusting device for a grain harvester, which is used when the clearance between the concave sieve and the threshing cylinder of the harvester is adjusted according to the harvesting requirements of different crops in the specific use process, only the operating handle assembly 15 needs to be operated to enable the operating handle assembly 15 to be meshed with different tooth positions on the toothed plate welding assembly 13, the operating handle assembly 15 can drive the rotating shaft welding assembly 10 to rotate through the flat key, the rotating shaft welding assembly 10 can drive the connecting rod 9 connected with the rotating shaft welding assembly 10 to move, the connecting rod 9 can correspondingly drive the adjusting rod shaft welding assembly 6 to rotate through the movement, the adjusting rod shaft welding assembly 6 can enable the lifting rod seat welding assembly 7 to rotate together with the lifting rod seat welding assembly 6 through the flat key, the adjusting rod shaft welding assembly 6 and the lifting rod seat welding assembly 7 can jointly rotate to drive the left adjusting rod assembly 2, the right adjusting rod assembly 4 and the two rear adjusting rod assemblies 3 connected with the concave plate welding assembly 1 to move, and then the purpose of adjusting the gap between the concave plate screen and the threshing roller of the harvester is achieved.
Consequently to the results demand of different crops, when needing to adjust harvester notch board sieve and threshing cylinder clearance, only need operating button, make button pulling pull rod, drive the meshing tooth on claw piece and the convex pinion rack and break away from, later, pull operating handle closes 15 upwards clearances and diminishes or clearance grow downwards, after the adjustment targets in place, with operating button, make claw piece on the operating handle closes 15 and the meshing tooth meshing location on the arc pinion rack in the pinion rack seam piece 13 can.
If the rough adjustment is carried out through the control handle assembly 15, the harvesting requirement can not be met, the clearance between the concave plate sieve and the threshing cylinder of the harvester can be more accurately adjusted by adjusting the left adjusting rod assembly 2, the right adjusting rod assembly 4 and the adjusting bolts 2.3 on the two rear adjusting rod assemblies 3, so that the use requirement of a user can be met.
Simultaneously, the user can adjust the entry clearance (specifically be contained angle A in figure 2) between harvester notch board sieve and the threshing cylinder and the export clearance (specifically be contained angle B in figure 2) differentiation adjustment through adjusting bolt 2.3 on left side regulation pole closes piece 2, right side regulation pole closes piece 4 and two rear side regulation pole closes pieces 3 according to the operation requirement, and the relative export clearance in entrance clearance can suitably be adjusted greatly, improves the separation performance of threshing, increases material circulation smoothness nature.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and scope of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a corn harvester is with concave sieve and threshing cylinder clearance adjustment device, is including setting up the control assembly in threshing chamber, setting in the driver's cabin to and connect at the control assembly subassembly and control the link assembly between the subassembly, its characterized in that: the adjusting rod component consists of a left side adjusting rod assembly, a right side adjusting rod assembly and two rear side adjusting rod assemblies, wherein the left side adjusting rod assembly and the right side adjusting rod assembly are respectively arranged at four corners of the concave plate welding piece and have the same structure and respectively comprise a suspender I and a suspender welding piece which are arranged at an upper interval and a lower interval, an adjusting bolt capable of adjusting the gap between the bottom end of the suspender I and the top end of the suspender welding piece is also arranged between the bottom end of the suspender I and the top end of the suspender welding piece, the rear side adjusting rod assembly comprises a suspender III and a suspender IV which are arranged at an upper interval and a lower interval, an adjusting bolt capable of adjusting the gap between the top end of the suspender III and the bottom end of the suspender IV is also arranged between the top end of the suspender III and the bottom end of the suspender IV, the suspender I and the top end of the suspender III which are positioned at one axial end of, the gap between the concave plate sieve on the concave plate welding part and the threshing cylinder on the upper part of the concave plate welding part can be changed by adjusting the adjusting bolt;
the connecting rod assembly comprises an adjusting rod shaft welding piece, a hanger rod seat welding piece and a connecting rod, wherein an adjusting rod shaft is arranged in the adjusting rod shaft welding piece, one end of the adjusting rod shaft is connected with a pin shaft of a left side adjusting rod piece and a rear side adjusting rod piece, the top ends of the left side adjusting rod piece and the rear side adjusting rod piece are fixed through the pin shaft, one end of the adjusting rod shaft is fixed with one end of the connecting rod through a group of seat plates arranged on the outer surface of the adjusting rod shaft, a group of seat plates are further arranged between the two ends of the adjusting rod shaft, the group of seat plates are connected with a pin shaft of a right side adjusting rod piece and a rear side adjusting rod piece, the top ends of the right side adjusting rod piece and the rear side adjusting rod piece are fixed through the pin shaft, and the other end of the connecting rod is connected with the control assembly, so that the connecting rod can drive the adjusting rod shaft welding piece and the hanger rod seat welding piece to rotate under the action of the control assembly to further drive the whole adjusting rod assembly to adjust up and down;
the control assembly comprises a rotating shaft welding piece, a toothed plate welding piece and a control handle welding piece, wherein one end of the rotating shaft welding piece is fixed with the connecting rod, the other end of the rotating shaft welding piece is connected with the tail end of the control handle welding piece, a toothed plate is arranged in the toothed plate welding piece and is in a circular arc shape, a plurality of meshing teeth are arranged on the outer circumference of the circular arc-shaped toothed plate, the control handle welding piece comprises a control tube, a support plate, a claw block and a pull rod, one end of the support plate is fixed on the outer wall surface of the control tube, a shaft sleeve I is fixed at the other end of the support plate and is fixed with the tail end of the rotating shaft welding piece, an installation shaft for fixing the claw block is further arranged in the middle of the support plate in a penetrating mode, the toothed plate is also fixed on the support plate, the meshing teeth on the toothed plate can be matched with the claw block to realize meshing fixation, the pull rod is arranged in the control tube in a penetrating mode, and one end of the pull rod is connected with the claw block, the other end of the pull rod is connected with a button, and the button can drive the claw block to select the meshing teeth on the circular arc toothed plate through the pull rod, so that the gap between the concave plate sieve and the threshing cylinder is adjusted.
2. The concave sieve and threshing cylinder gap adjusting device for the grain harvester according to claim 1, characterized in that: the suspender welding piece comprises a suspender II and a folded plate, the folded plate is in butt joint with the top end of the suspender II, and the folded plate is connected with the bottom end of the suspender I through an adjusting bolt.
3. The concave sieve and threshing cylinder gap adjusting device for the grain harvester according to claim 1, characterized in that: the pin shaft is positioned through a cotter pin.
4. The concave sieve and threshing cylinder gap adjusting device for the grain harvester according to claim 1, characterized in that: the adjusting rod shaft is also provided with a mounting seat for fixing the adjusting rod shaft in the threshing chamber.
5. The concave sieve and threshing cylinder gap adjusting device for the grain harvester according to claim 1, characterized in that: the adjusting rod shaft welding assembly comprises an adjusting rod shaft and two groups of seat plates, a flat key groove is machined in one end of the adjusting rod shaft, the two groups of seat plates are sleeved at one end of the adjusting rod shaft, which is not provided with the flat key groove, each group of seat plates is composed of two seat plates I, two through holes are formed in each seat plate I, one through hole is sleeved and fixed on the adjusting rod shaft, the other through hole is used for fixing the tail end of a pin shaft or a connecting rod at the top of the right-side adjusting rod assembly and the rear-side adjusting rod assembly, the through holes in the two seat plates I in the same group of seat plates are coaxially arranged, and an included angle of 45-135 degrees is formed between the axial directions of the two groups of seat plates.
6. The concave sieve and threshing cylinder gap adjusting device for the grain harvester according to claim 5, characterized in that: the hanger rod seat welding piece comprises a shaft sleeve II and two seat plates II fixed on the outer side walls of the shaft sleeve II, a flat key groove is processed in an inner hole of the shaft sleeve II, the flat key groove is matched with the flat key groove in the adjusting rod shaft and a peripheral flat key, locking between the adjusting rod shaft welding piece and the hanger rod seat welding piece is fixed, a connecting through hole is formed in the seat plate II, and the connecting through holes in the two seat plates II are fixed on a pin shaft at the top of the left-side adjusting rod welding piece and the top of the rear-side adjusting rod welding piece.
7. The concave sieve and threshing cylinder gap adjusting device for the grain harvester according to claim 1, characterized in that: rotation axis seam piece include rotation axis and two bedplate III, the one end processing of rotation axis has flat keyway, this flat keyway can be fixed with I cooperation of axle sleeve in the control handle closes the piece, the other end at the rotation axis is worn to establish by two bedplate III, bedplate III on seted up connect the via hole, connect the via hole on two bedplate III all fixes the end at the connecting rod.
8. The concave sieve and threshing cylinder gap adjusting device for the grain harvester according to claim 7, characterized in that: the rotating shaft is also provided with a support and a support frame for fixing the rotating shaft in the cab, and the rotating shaft is also provided with an oil cup for supplying lubricating oil to the rotating shaft.
9. The concave sieve and threshing cylinder gap adjusting device for the grain harvester according to claim 1, characterized in that: in the rotating shaft welding piece, a handle sleeve is arranged on the outer surface of one end, provided with a button, of the control tube, the button is connected with the pull rod through threads, a flat key groove is processed in an inner hole of the shaft sleeve I, an included angle of 30-60 degrees is formed between the central line of the flat key groove and the central axis of the control tube, and a buffer spring is further connected between the claw block and the tail end of the control tube.
10. The concave sieve and threshing cylinder gap adjusting device for the grain harvester according to claim 1, characterized in that: the toothed plate welding piece is connected to the support plate of the control handle welding piece through the fixed support.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022702927.3U CN214178128U (en) | 2020-11-20 | 2020-11-20 | Gap adjusting device for concave plate sieve and threshing cylinder of grain harvester |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022702927.3U CN214178128U (en) | 2020-11-20 | 2020-11-20 | Gap adjusting device for concave plate sieve and threshing cylinder of grain harvester |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112293064A (en) * | 2020-11-20 | 2021-02-02 | 中国一拖集团有限公司 | Gap adjusting device for concave plate sieve and threshing cylinder of grain harvester |
| US11877538B1 (en) | 2022-08-30 | 2024-01-23 | Calmer Holding Company, Llc | Threshing grains and legumes utilizing concaves with adjustable openings |
| USD1031792S1 (en) | 2022-08-30 | 2024-06-18 | Calmer Holding Company, Llc | Round bar concave |
| USD1031793S1 (en) | 2022-08-30 | 2024-06-18 | Calmer Holding Company, Llc | Separating grate |
| USD1031791S1 (en) | 2022-08-30 | 2024-06-18 | Calmer Holding Company, Llc | Straight bar concave |
| USD1032666S1 (en) | 2022-08-30 | 2024-06-25 | Calmer Holding Company, Llc | MOG limiting subassembly for combine concave |
-
2020
- 2020-11-20 CN CN202022702927.3U patent/CN214178128U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112293064A (en) * | 2020-11-20 | 2021-02-02 | 中国一拖集团有限公司 | Gap adjusting device for concave plate sieve and threshing cylinder of grain harvester |
| CN112293064B (en) * | 2020-11-20 | 2024-05-14 | 中国一拖集团有限公司 | Concave plate sieve and threshing cylinder gap adjusting device for grain harvester |
| US11877538B1 (en) | 2022-08-30 | 2024-01-23 | Calmer Holding Company, Llc | Threshing grains and legumes utilizing concaves with adjustable openings |
| USD1031792S1 (en) | 2022-08-30 | 2024-06-18 | Calmer Holding Company, Llc | Round bar concave |
| USD1031793S1 (en) | 2022-08-30 | 2024-06-18 | Calmer Holding Company, Llc | Separating grate |
| USD1031791S1 (en) | 2022-08-30 | 2024-06-18 | Calmer Holding Company, Llc | Straight bar concave |
| USD1032666S1 (en) | 2022-08-30 | 2024-06-25 | Calmer Holding Company, Llc | MOG limiting subassembly for combine concave |
| US12102041B2 (en) | 2022-08-30 | 2024-10-01 | Calmer Holding Company, Llc | Methods and systems for threshing/separating grains and legumes utilizing concaves |
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