CN110915429A - Threshing cylinder with adjustable threshing gap - Google Patents
Threshing cylinder with adjustable threshing gap Download PDFInfo
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- CN110915429A CN110915429A CN201911300558.0A CN201911300558A CN110915429A CN 110915429 A CN110915429 A CN 110915429A CN 201911300558 A CN201911300558 A CN 201911300558A CN 110915429 A CN110915429 A CN 110915429A
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- main shaft
- threshing
- sliding
- threshing cylinder
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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
- A01F12/18—Threshing devices
- A01F12/22—Threshing cylinders with teeth
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Abstract
The invention discloses a threshing cylinder with adjustable threshing gaps, which comprises a main shaft and a plurality of toothed bars with threshing teeth, wherein a support is arranged on the main shaft corresponding to each toothed bar, each toothed bar is arranged on the corresponding support in a sliding way and can adjust the radial distance between the toothed bar and the main shaft, and the threshing cylinder also comprises a sliding driving component for driving the toothed bars to slide. The invention has the advantages of high regulation stability and precision, simple and compact structure, low cost, easy manufacture and assembly, simple and convenient control and the like.
Description
Technical Field
The invention relates to the technical field of agricultural machinery, in particular to a threshing cylinder with adjustable threshing gaps.
Background
The threshing gap is one of the main working parameters of the threshing device, and the threshing gap influences the threshing performance to a certain extent. The threshing gap is the gap between the threshing teeth top of the threshing cylinder and the concave sieve. When the threshing gap is smaller, the roller seriously impacts materials to crush the straws, the impurity content of the threshed materials is increased, and threshed grains are difficult to separate, so that the entrainment loss is increased. When the threshing gap is too small or the feed amount is increased, the drum may be clogged. Generally, the threshing gap is determined by testing the better threshing gap of the device after the feeding amount is determined.
The threshing device with adjustable threshing clearance is divided into two forms of adjusting a concave plate sieve and adjusting a threshing cylinder, wherein the threshing cylinder is mainly provided with a set of adjusting mechanism to adjust the radial distance between threshing teeth and a rotating shaft of the threshing cylinder, so that the threshing clearance is adjusted. By adjusting the radial distance between the threshing teeth and the rotating shaft of the threshing cylinder, not only can the threshing gap be adjusted, but also the circumferential linear speed of the threshing teeth can be adjusted, and the threshing effect is further improved. The existing threshing cylinder with adjustable threshing clearance has various structural forms, but has the problems of complex structure, high cost, difficult manufacturing and assembly, high adjusting and controlling difficulty and the like.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects in the prior art and provides the threshing cylinder with adjustable threshing clearance, which has the advantages of high adjustment stability and adjustment precision, simple and compact structure, low cost, easy manufacture and assembly and simple and convenient control.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides an adjustable threshing cylinder in clearance of threshing, includes main shaft and a plurality of ratchets that have threshing teeth, it all is equipped with a support all to correspond every ratchets on the main shaft, and each ratchets slides and establishes and install on corresponding support and can adjust and the main shaft between the radial interval, threshing cylinder still including being used for ordering about the gliding slip drive assembly of ratchets.
As a further improvement of the above technical solution:
the sliding driving assembly comprises a sliding sleeve, the sliding sleeve is sleeved on the main shaft along the axial direction of the main shaft in a sliding mode, each toothed bar is connected with the sliding sleeve through a connecting rod, one end of each connecting rod is hinged to the toothed bar, the other end of each connecting rod is hinged to the sliding sleeve, and the sliding driving assembly further comprises a sliding driving mechanism used for driving the sliding sleeve to slide.
The sliding driving mechanism comprises a control mandrel, the main shaft is provided with an inner cavity, the control mandrel is installed in the inner cavity in a mode of reciprocating along the axial direction of the main shaft, the sliding sleeve is connected with the control mandrel, and one end, extending out of the main shaft, of the control mandrel is connected with a sliding driving unit used for driving the control mandrel to reciprocate.
The main shaft is provided with a limiting groove hole communicating the inner cavity with the outside of the main shaft, and the sliding sleeve is connected with the control core shaft through a fastener penetrating through the corresponding limiting groove hole.
The sliding driving unit comprises a swing adjusting rod and a fixed seat which is fixedly arranged, the swing adjusting rod is hinged to the fixed seat and provided with an adjusting groove, the control core shaft is connected with a matching rod, and the matching rod is inserted into the adjusting groove and forces the control core shaft to do reciprocating motion when the swing adjusting rod swings in a reciprocating mode.
The control mandrel is installed in the inner cavity in a sliding mode along the axial direction of the main shaft.
The sliding driving unit is an electric push rod or an air cylinder or an oil cylinder connected with the control mandrel.
The support comprises two vertical rods, the two vertical rods are connected to the main shaft in the axial direction of the main shaft at intervals, each vertical rod is provided with a sliding groove, and two ends of the toothed bar are correspondingly and slidably arranged in the sliding grooves of the two vertical rods respectively.
The support also comprises a cross rod connected between the two vertical rods.
Every threshing tooth that corresponds the ratch on the horizontal pole all is equipped with a through-hole, threshing tooth wears to establish in the through-hole that corresponds and with the through-hole that corresponds sliding fit in the main shaft radial direction.
Compared with the prior art, the invention has the advantages that:
in the threshing cylinder with the adjustable threshing gap, each toothed bar is arranged on the bracket arranged on the main shaft in a sliding mode to realize the adjustment of the radial distance between the toothed bar and the main shaft, so as to adjust the threshing gap.
Drawings
Fig. 1 is a schematic perspective view of a threshing cylinder with threshing teeth in an extended state.
Fig. 2 is a schematic side view of the threshing cylinder with the threshing teeth in an extended position.
Fig. 3 is a schematic perspective view of the threshing cylinder when the threshing teeth are in a retracted state.
Fig. 4 is a schematic side view of the threshing cylinder with the threshing teeth in a retracted state.
Fig. 5 is a schematic perspective view of a single toothed bar attached to a main shaft with threshing teeth in an extended position.
Fig. 6 is a schematic perspective view of a single toothed bar connected to a main shaft and threshing teeth in a retracted state.
Illustration of the drawings:
1. a main shaft; 11. an inner cavity; 12. limiting slotted holes; 2. a rack bar; 21. threshing teeth; 3. a support; 31. a vertical rod; 311. a chute; 32. a cross bar; 4. a sliding sleeve; 5. a connecting rod; 6. controlling the mandrel; 7. a fastener; 8. swinging the adjusting rod; 81. an adjustment groove; 9. a fixed seat; 10. a mating rod.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
As shown in fig. 1 to 6, the threshing cylinder with adjustable threshing gap of the present embodiment includes a main shaft 1 and a plurality of toothed bars 2 having threshing teeth 21, a support 3 is fixedly disposed on the main shaft 1 corresponding to each toothed bar 2, each toothed bar 2 is slidably mounted on the corresponding support 3 and can adjust a radial distance between the toothed bar 2 and the main shaft 1, and the threshing cylinder further includes a sliding driving assembly for driving the toothed bar 2 to slide. In this threshing cylinder of adjustable threshing gap, each ratch 2 is installed on locating the support 3 on main shaft 1 with the smooth mode of establishing and is realized adjusting the radial interval between ratch 2 and the main shaft 1, and then adjust threshing gap, the stability and the reliability of action are high when it adjusts, do benefit to the regulation precision that improves threshing gap, and do not need the slip drive assembly to inject and control the direction of motion of ratch 2, can simplify the structure of slip drive assembly, reach the purpose that improves simple structure compactness, reduce cost, reduce the preparation assembly degree of difficulty, simplified control.
In this embodiment, the sliding driving assembly includes a sliding sleeve 4, the sliding sleeve 4 is sleeved on the main shaft 1 along the axial direction of the main shaft 1, each rack bar 2 is connected with the sliding sleeve 4 through a connecting rod 5, one end of the connecting rod 5 is hinged to the rack bar 2, the other end of the connecting rod 5 is hinged to the sliding sleeve 4, and the sliding driving assembly further includes a sliding driving mechanism for driving the sliding sleeve 4 to slide. The sliding driving mechanism can drive the sliding sleeve 4 to slide in a reciprocating manner, and the toothed bar 2 is forced to slide in a reciprocating manner through the connecting rod 5 when the sliding sleeve 4 slides in a reciprocating manner, so that the threshing gap can be adjusted. The sliding driving assembly is simple and compact in structure and stable and reliable in operation.
In this embodiment, the sliding driving mechanism includes a control spindle 6, the main shaft 1 is provided with an inner cavity 11, the control spindle 6 is installed in the inner cavity 11 in a manner of reciprocating along the axial direction of the main shaft 1, the sliding sleeve 4 is connected with the control spindle 6, and one end of the control spindle 6 extending out of the main shaft 1 is connected with a sliding driving unit for driving the control spindle 6 to reciprocate. The control mandrel 6 of the sliding driving mechanism is arranged in the inner cavity 11 of the main shaft 1, which is beneficial to further improving the structure compactness and can not interfere the normal work of the threshing cylinder.
In this embodiment, the main shaft 1 is provided with a limit slot 12 communicating the inner cavity 11 with the outside of the main shaft 1, and the sliding sleeve 4 is connected with the control core shaft 6 through a fastener 7 penetrating through the corresponding limit slot 12. Sliding sleeve 4 links to each other with control dabber 6 through fastener 7, makes things convenient for dismouting and maintenance, and fastener 7 runs through main shaft 1's spacing slotted hole 12 simultaneously, and spacing slotted hole 12 plays limiting displacement to fastener 7's sliding range, also plays limiting displacement to sliding sleeve 4 and control dabber 6's motion range, need not set up stop gear in addition and prescribe a limit to sliding sleeve 4 and control dabber 6's motion range, has saved the cost, does benefit to and improves simple structure compactness.
In this embodiment, the sliding driving unit includes a swing adjusting rod 8 and a fixed seat 9 fixedly disposed, the swing adjusting rod 8 is hinged to the fixed seat 9, the swing adjusting rod 8 is provided with an adjusting groove 81, the control mandrel 6 is connected with a matching rod 10, the matching rod 10 is inserted into the adjusting groove 81, and the control mandrel 6 is forced to reciprocate through the matching of the adjusting groove 81 and the matching rod 10 when the swing adjusting rod 8 swings reciprocally. When the swing adjusting rod 8 swings back and forth, the adjusting groove 81 forces the engaging rod 10 to move back and forth in the adjusting groove 81, thereby moving the control core shaft 6 back and forth. The sliding driving unit has the advantages of simple and compact structure, easy manufacture and assembly and simple and convenient control. Preferably, the swing adjusting rod 8 is connected with an automatic driving part, the automatic driving part adopts a rotating motor or a hydraulic motor, or the automatic driving part adopts a telescopic cylinder or a telescopic oil cylinder or an electric push rod.
In this embodiment, the control core shaft 6 is installed in the inner cavity 11 along the axial direction of the main shaft 1 in a sliding manner, so that the sliding stability is good, and the stability and accuracy of threshing gap adjustment can be improved.
In other embodiments, the sliding driving unit may also adopt other structural forms, for example, the sliding driving mechanism is an electric push rod or an air cylinder or an oil cylinder connected with the control mandrel 6, or other driving pieces or driving mechanisms capable of driving the control mandrel 6 to reciprocate.
In this embodiment, the support 3 includes two vertical rods 31, the two vertical rods 31 are connected to the main shaft 1 at intervals in the axial direction of the main shaft 1, each vertical rod 31 is provided with a sliding groove 311, and two ends of the rack bar 2 are respectively and correspondingly slidably disposed in the sliding grooves 311 of the two vertical rods 31. The sliding installation structure has the advantages of good structure compactness and easy manufacture and assembly, and can not influence the normal threshing function of the threshing cylinder.
In this embodiment, the support 3 further includes a cross bar 32 connected between the two vertical bars 31, which can improve the mounting stability of the vertical bars 31.
In this embodiment, every threshing teeth 21 corresponding to the rack bar 2 on the cross bar 32 is provided with a through hole, and the threshing teeth 21 are arranged in the corresponding through holes in a penetrating manner and are in sliding fit with the corresponding through holes in the radial direction of the main shaft 1, so that the motion stability and precision of the rack bar 2 can be further improved.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-described embodiments. Modifications and variations that may occur to those skilled in the art without departing from the spirit and scope of the invention are to be considered as within the scope of the invention.
Claims (10)
1. The utility model provides an adjustable threshing cylinder in clearance of threshing, includes main shaft (1) and a plurality of ratch (2) that have threshing teeth (21), its characterized in that: correspond every rack bar (2) on main shaft (1) and all be equipped with a support (3), each rack bar (2) is slided and is established and install on corresponding support (3) and can adjust and main shaft (1) between the radial interval, threshing cylinder still including being used for driving about the gliding slip drive assembly of rack bar (2).
2. The threshing cylinder of claim 1, wherein: the sliding driving assembly comprises a sliding sleeve (4), the sliding sleeve (4) is sleeved on the main shaft (1) along the axial direction of the main shaft (1), each toothed bar (2) is connected with the sliding sleeve (4) through a connecting rod (5), one end of each connecting rod (5) is hinged to the toothed bar (2), the other end of each connecting rod (5) is hinged to the sliding sleeve (4), and the sliding driving assembly further comprises a sliding driving mechanism used for driving the sliding sleeve (4) to slide.
3. The threshing cylinder of claim 2, wherein: slide actuating mechanism includes control dabber (6), main shaft (1) is equipped with inner chamber (11), control dabber (6) are in order to install along main shaft (1) axial reciprocating motion's mode in inner chamber (11), sliding sleeve (4) with control dabber (6) link to each other, control dabber (6) stretch out the one end of main shaft (1) and link to each other with a slide driving unit who is used for driving control dabber (6) reciprocating motion.
4. The threshing cylinder of claim 3, wherein: the main shaft (1) is provided with a limiting groove hole (12) communicating the inner cavity (11) and the outside of the main shaft (1), and the sliding sleeve (4) is connected with the control core shaft (6) through a fastener (7) penetrating through the corresponding limiting groove hole (12).
5. The threshing cylinder of claim 3, wherein: the sliding driving unit comprises a swing adjusting rod (8) and a fixed fixing seat (9), the swing adjusting rod (8) is hinged to the fixing seat (9), an adjusting groove (81) is formed in the swing adjusting rod (8), a matching rod (10) is connected to the control mandrel (6), and the matching rod (10) is inserted into the adjusting groove (81) and forces the control mandrel (6) to do reciprocating motion when the swing adjusting rod (8) does reciprocating motion.
6. The threshing cylinder of claim 3, wherein: the control mandrel (6) is arranged in the inner cavity (11) in a sliding mode along the axial direction of the main shaft (1).
7. The threshing cylinder of claim 3, wherein: the sliding driving unit is an electric push rod or an air cylinder or an oil cylinder connected with the control mandrel (6).
8. Threshing cylinder according to any one of claims 1 to 7, characterized in that: the support (3) comprises two vertical rods (31), the two vertical rods (31) are connected to the main shaft (1) in the axial direction of the main shaft (1) at intervals, each vertical rod (31) is provided with a sliding groove (311), and two ends of the toothed bar (2) are correspondingly arranged in the sliding grooves (311) of the two vertical rods (31) in a sliding mode respectively.
9. The threshing cylinder of claim 8, wherein: the support (3) further comprises a cross rod (32) connected between the two vertical rods (31).
10. The threshing cylinder of claim 9, wherein: every threshing teeth (21) that correspond ratch (2) on horizontal pole (32) all are equipped with a through-hole, threshing teeth (21) wear to establish in the through-hole that corresponds and with the through-hole that corresponds sliding fit on main shaft (1) radial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911300558.0A CN110915429A (en) | 2019-12-17 | 2019-12-17 | Threshing cylinder with adjustable threshing gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911300558.0A CN110915429A (en) | 2019-12-17 | 2019-12-17 | Threshing cylinder with adjustable threshing gap |
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| Publication Number | Publication Date |
|---|---|
| CN110915429A true CN110915429A (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911300558.0A Pending CN110915429A (en) | 2019-12-17 | 2019-12-17 | Threshing cylinder with adjustable threshing gap |
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| CN (1) | CN110915429A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112602464A (en) * | 2021-01-05 | 2021-04-06 | 华南农业大学 | Double-drum rice threshing device |
| CN112604971A (en) * | 2020-12-11 | 2021-04-06 | 山东德隆博德尔环保装备发展有限公司 | Solid garbage sorter |
| CN113508690A (en) * | 2021-05-08 | 2021-10-19 | 河南科技大学 | Flexible threshing device capable of automatically adjusting threshing gap |
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|---|---|---|---|---|
| CN101036435A (en) * | 2006-03-17 | 2007-09-19 | 钱志义 | Adjustable axial-flow type drum thresher |
| CN108142110A (en) * | 2018-01-08 | 2018-06-12 | 湖南农业大学 | A kind of adjustable threshing cylinder of cylinder-concave clearance |
| CN108925248A (en) * | 2018-07-13 | 2018-12-04 | 江苏大学 | A kind of adjustable threshing cylinder of threshing diameter and combine harvester |
| CN109041823A (en) * | 2018-06-29 | 2018-12-21 | 江苏大学 | A kind of threshing cylinder and combine harvester of threshing spike-tooth adjustable angle |
| WO2019153450A1 (en) * | 2018-02-08 | 2019-08-15 | 江苏大学 | Threshing diameter adjustable longitudinal axial flow cylinder structure |
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2019
- 2019-12-17 CN CN201911300558.0A patent/CN110915429A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101036435A (en) * | 2006-03-17 | 2007-09-19 | 钱志义 | Adjustable axial-flow type drum thresher |
| CN108142110A (en) * | 2018-01-08 | 2018-06-12 | 湖南农业大学 | A kind of adjustable threshing cylinder of cylinder-concave clearance |
| WO2019153450A1 (en) * | 2018-02-08 | 2019-08-15 | 江苏大学 | Threshing diameter adjustable longitudinal axial flow cylinder structure |
| CN109041823A (en) * | 2018-06-29 | 2018-12-21 | 江苏大学 | A kind of threshing cylinder and combine harvester of threshing spike-tooth adjustable angle |
| CN108925248A (en) * | 2018-07-13 | 2018-12-04 | 江苏大学 | A kind of adjustable threshing cylinder of threshing diameter and combine harvester |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112604971A (en) * | 2020-12-11 | 2021-04-06 | 山东德隆博德尔环保装备发展有限公司 | Solid garbage sorter |
| CN112602464A (en) * | 2021-01-05 | 2021-04-06 | 华南农业大学 | Double-drum rice threshing device |
| CN113508690A (en) * | 2021-05-08 | 2021-10-19 | 河南科技大学 | Flexible threshing device capable of automatically adjusting threshing gap |
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Application publication date: 20200327 |