CN111194623A - Threshing cylinder and threshing device adopting same - Google Patents
Threshing cylinder and threshing device adopting same Download PDFInfo
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- CN111194623A CN111194623A CN202010065834.6A CN202010065834A CN111194623A CN 111194623 A CN111194623 A CN 111194623A CN 202010065834 A CN202010065834 A CN 202010065834A CN 111194623 A CN111194623 A CN 111194623A
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- 238000007789 sealing Methods 0.000 claims description 28
- 238000004891 communication Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 235000013339 cereals Nutrition 0.000 description 13
- 241000209094 Oryza Species 0.000 description 9
- 235000007164 Oryza sativa Nutrition 0.000 description 9
- 235000009566 rice Nutrition 0.000 description 9
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000003306 harvesting Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 241000251169 Alopias vulpinus Species 0.000 description 1
- 241001124569 Lycaenidae Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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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
- A01F12/181—Adjustable threshing mechanisms
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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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- Environmental Sciences (AREA)
- Threshing Machine Elements (AREA)
Abstract
本发明公开了一种脱粒滚筒及采用该脱粒滚筒的脱粒装置，脱粒滚筒包括由第一轴段和第二轴段通过液压式无级调节离合器连接形成的主轴，第一轴段上安装有多根第一齿杆，第二轴段上安装有多根第二齿杆，主轴的一端设有液压旋转接头，主轴内设有连接液压旋转接头和液压式无级调节离合器的控制油道。脱粒装置包括凹板筛和该脱粒滚筒。本发明具有可进行差速脱粒，差速无级可调，调节灵活性好，适应性好等优点。
The invention discloses a threshing drum and a threshing device using the threshing drum. The threshing drum comprises a main shaft formed by connecting a first shaft section and a second shaft section through a hydraulic stepless adjustment clutch. A first gear rod, a plurality of second gear rods are installed on the second shaft section, one end of the main shaft is provided with a hydraulic rotary joint, and the main shaft is provided with a control oil passage connecting the hydraulic rotary joint and the hydraulic stepless adjustment clutch. The threshing device includes a concave screen and the threshing drum. The invention has the advantages of being able to carry out differential speed threshing, stepless adjustment of differential speed, good adjustment flexibility, good adaptability and the like.
Description
Technical Field
The invention relates to the technical field of grain threshing, in particular to a threshing cylinder and a threshing device adopting the same.
Background
The rotation speed of the threshing cylinder and the threshing gap are the main working parameters of the threshing device, and the rotation speed of the threshing cylinder and the threshing gap influence the threshing performance to a great 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 can seriously strike the materials, so that the straws are crushed, 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. Due to different types of harvested crops, the difference of the suitable threshing gaps is large, and the threshing gaps of the combine harvester are usually adjusted by replacing the concave plate sieve or adjusting the position of the concave plate sieve by utilizing a pull rod for adapting to threshing of various crops.
When the high-yield rice is harvested by using the full-feeding combine harvester, the cut rice clusters are thick and dense, and are fed into a threshing chamber for threshing after being harvested and conveyed. Under the combing and brushing of the threshing roller rod teeth, most mature easy-to-thresh seeds are threshed at the front half section of the roller, and a few immature seeds or difficult-to-thresh seeds are threshed from the rear half section. Because the existing full-feeding longitudinal axial flow combine harvesters are single-rotating-speed rollers, the rotating speed of the rollers is fixed, the rotating speed is too low under the condition of immature difficult-to-thresh grains or harvesting high-yield rice, and the threshing loss is easy to cause. And the increase of the rotating speed of the roller increases the grain breakage rate and the stalk breakage rate, and the operation quality is difficult to meet the national specified performance index requirements that the total loss rate is less than or equal to 2.5 percent, the impurity content rate is less than or equal to 2.0 percent and the breakage rate is less than or equal to 2 percent. Therefore, domestic and foreign production enterprises adopt a method of increasing the length of the roller to improve threshing and separating time, so as to solve the problem of unclean threshing, and further increase the machine structure.
In order to solve the problem of complete grain threshing, Chinese patent with publication number CN201640023U discloses a coaxial differential drum of a semi-feeding combine harvester, which breaks through the situation of single drum and single rotating speed of the traditional threshing drum device, can solve the problem of incomplete threshing of high-yield rice and difficult-threshing varieties, and has compact structure and no blockage of the high-speed drum and the low-speed drum. However, in the patent, belt pulleys are arranged at the front end and the rear end and are driven by belts, so that a transmission system is complex and a transmission chain occupies a large space. In order to solve the problems of complex transmission and large occupied space, the Chinese patent with the publication number of CN102577770A discloses a full-feeding longitudinal axial flow differential threshing cylinder which is similar to the former and discloses a differential speed changer for driving the differential threshing cylinder to rotate. Therefore, further design and development aiming at the problems are needed, the existing problems are solved, and the requirements of real-time control of the intelligent threshing and intelligent combine harvester can be met.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects in the prior art, provides a threshing cylinder which can perform differential threshing, has stepless adjustable differential speed, good adjustment flexibility and good adaptability, and also correspondingly provides a threshing device adopting the threshing cylinder.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a threshing cylinder, includes and is connected the main shaft that forms through fluid pressure type infinitely variable control clutch by first shaft section and second shaft section, install many first ratchets that have first threshing teeth on the first shaft section, install many second ratchets that have second threshing teeth on the second shaft section, the one end of main shaft is equipped with hydraulic pressure rotary joint, be equipped with in the main shaft and connect hydraulic pressure rotary joint and fluid pressure type infinitely variable control clutch's control oil duct.
As a further improvement of the above technical solution:
the hydraulic rotary joint comprises a mandrel, a shell and a sliding seal sleeve, the mandrel is fixedly connected to a main shaft, the shell is sleeved on the mandrel in a rotary sealing connection mode, a seal cavity is formed between the shell and the mandrel, the shell is provided with an oil inlet channel, the sliding seal sleeve is located in the seal cavity and is slidably arranged in the oil inlet channel in a sliding sealing mode, the sliding seal sleeve is connected with an elastic piece forcing the sliding seal sleeve to be in close contact with the mandrel, the hydraulic rotary joint is further provided with a communication channel which sequentially penetrates through the contact surface of the sliding seal sleeve, the sliding seal sleeve and the mandrel, and two ends of the communication channel are respectively communicated with the oil inlet channel and a control oil duct.
The shell is rotatably installed on the mandrel through a bearing, and a rotary sealing element is arranged between the shell and the mandrel.
And an oil drainage port communicated with the sealing cavity is arranged on the shell sleeve.
The hydraulic stepless regulating clutch comprises a clutch shell and a clutch output hub, wherein the clutch shell is fixedly arranged on one of the first shaft section and the second shaft section, the clutch output hub is fixedly arranged on the other of the first shaft section and the second shaft section, a plurality of clutch outer plates which are sequentially arranged at intervals along the axial direction of the main shaft are arranged on the clutch shell, one clutch inner plate is inserted between any two adjacent clutch outer plates, and each clutch inner plate is arranged on the clutch output hub; the clutch comprises a clutch shell, a control oil duct, a piston and an elastic telescopic piece, wherein the clutch shell is provided with a cylinder body, the piston is arranged in the cylinder body in an axial sliding mode along a main shaft, an oil cavity is formed between the cylinder body and the piston, the oil cavity is communicated with the control oil duct, the piston is forced to move towards the direction of pressing an outer clutch piece by overcoming the action of the elastic telescopic piece when pressure oil is injected into the oil cavity, and the piston is further connected with the elastic telescopic piece which is used for forcing the piston to move towards the.
The first shaft section is provided with a power input part connected with a power source, and the hydraulic rotary joint, the control oil duct and the clutch shell are arranged on the second shaft section.
The first shaft section is fixedly connected with a plurality of first radial plates which are sequentially arranged at intervals along the axial direction, a plurality of first tooth bars are arranged on the plurality of first radial plates, the second shaft section is fixedly connected with a plurality of second radial plates which are sequentially arranged at intervals along the axial direction, a plurality of second tooth bars are arranged on the plurality of second radial plates, a first annular shielding part is arranged in the first radial plate close to the second shaft section, and the end part of each second tooth bar extends into the first annular shielding part; or a second radial plate close to the first shaft segment is provided with a second annular shielding part, and the end part of each first rack rod extends into the second annular shielding part.
A threshing device comprises a concave sieve and a threshing cylinder, wherein the threshing cylinder is the threshing cylinder.
As a further improvement of the above technical solution:
the concave plate sieve is a rotary concave plate sieve.
Compared with the prior art, the invention has the advantages that:
the main shaft of the threshing cylinder is formed by connecting a first shaft section and a second shaft section through a hydraulic stepless adjusting clutch, the first shaft section or the second shaft section is driven to rotate by power during working, the engaging degree of the hydraulic stepless adjusting clutch can be controlled by utilizing a hydraulic rotary joint and pressure oil introduced into a control oil duct in the main shaft, and further the speed difference between the first shaft section and the second shaft section can be adjusted in a stepless manner, so that differential threshing is realized.
The threshing device of the present invention has the advantages of the threshing cylinder, because the threshing cylinder of the present invention is used.
By adopting the threshing cylinder and the threshing device, the rotation speed adjustment and matching of the high-speed section and the low-speed section of the threshing cylinder can be realized according to the control method of the intelligent control system of the threshing cylinder by combining the real-time feeding amount, the crop water content and the breakage rate, and the rotation speed adjustment of the rotary concave plate sieve is carried out at the same time, so that the objective conditions of the current feeding amount and the crop water content are adapted, the loss rate and the breakage rate index of grain harvesting are optimized, and the working effect of realizing high efficiency and low loss of a grain harvester is met.
Drawings
Fig. 1 is a schematic perspective view of a threshing cylinder.
Fig. 2 is a schematic perspective view of the spindle.
Fig. 3 is a schematic sectional view of the spindle.
Fig. 4 is a schematic sectional structure view of the hydraulic rotary joint.
Fig. 5 is a schematic sectional view of the hydraulic stepless adjustment clutch.
Fig. 6 is a schematic perspective view of the threshing device.
Illustration of the drawings:
1. a first shaft section; 100. a main shaft; 11. a first web; 12. a first annular shield portion; 2. a second shaft section; 200. controlling the oil duct; 21. a second web; 3. a hydraulic stepless adjustment clutch; 300. a communication channel; 31. a clutch housing; 311. a cylinder body; 32. a clutch output hub; 33. a clutch outer plate; 34. a clutch inner plate; 35. a piston; 36. an oil chamber; 37. an elastic extensible member; 4. a first rack bar; 41. a first threshing tooth; 5. a second rack bar; 51. a second threshing tooth; 6. a hydraulic swivel joint; 61. a mandrel; 62. a shell; 621. an oil inlet channel; 622. an oil drainage port; 63. a sliding seal cartridge; 64. an elastic member; 65. a bearing; 66. a rotary seal; 7. a power input component; 8. a concave plate sieve.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
As shown in fig. 1 to 3, the threshing cylinder of the present embodiment includes a main shaft 100 formed by connecting a first shaft section 1 and a second shaft section 2 through a hydraulic stepless adjustment clutch 3, wherein a plurality of first toothed bars 4 having first threshing teeth 41 are mounted on the first shaft section 1 to form one cylinder section, and a plurality of second toothed bars 5 having second threshing teeth 51 are mounted on the second shaft section 2 to form another cylinder section. One end of the main shaft 100 is provided with a hydraulic rotary joint 6, and a control oil passage 200 for connecting the hydraulic rotary joint 6 and the hydraulic stepless adjusting clutch 3 is arranged in the main shaft 100. The main shaft 100 of the threshing cylinder is formed by connecting a first shaft section 1 and a second shaft section 2 through a hydraulic stepless adjusting clutch 3, the first shaft section 1 or the second shaft section 2 is driven to rotate by power during working, the engaging degree of the hydraulic stepless adjusting clutch 3 can be controlled by introducing pressure oil through a hydraulic rotary joint 6 and a control oil duct 200 in the main shaft 100, further the speed difference between the first shaft section 1 and the second shaft section 2 can be regulated in a stepless manner, differential threshing is realized, the threshing cylinder is simple and compact in structure, low in cost, stable and reliable in working, the differential ratio between the first shaft section 1 and the second shaft section 2 can be regulated at will, the regulation flexibility is good, and the adaptability is good.
In this embodiment, as shown in fig. 4, the hydraulic rotary joint 6 includes a core shaft 61, a casing 62 and a sliding seal sleeve 63, the core shaft 61 is fixedly connected to the main shaft 100, the casing 62 is sleeved on the core shaft 61 in a rotary sealing connection manner, a sealing cavity is provided between the casing 62 and the core shaft 61, the casing 62 is provided with an oil inlet passage 621, the sliding seal sleeve 63 is located in the sealing cavity and slidably installed in the oil inlet passage 621 in a sliding sealing manner, the sliding seal sleeve 63 is connected to an elastic member 64 forcing the sliding seal sleeve 63 to tightly contact with the core shaft 61, the hydraulic rotary joint 6 is further provided with a communication passage 300 sequentially penetrating through the sliding seal sleeve 63, a contact surface of the sliding seal sleeve 63 and the core shaft 61, and two ends of the communication passage 300 are respectively communicated with the oil inlet passage. When the hydraulic stepless adjusting clutch works, pressure oil is introduced from the oil inlet passage 621, enters the hydraulic stepless adjusting clutch 3 through the communicating passage 300 and the control oil duct 200, and further controls the hydraulic stepless adjusting clutch 3 to work. In the hydraulic rotary joint 6, the shell 62 and the mandrel 61 fixedly connected to the main shaft 100 can rotate relatively, and meanwhile, the sliding seal sleeve 63 installed in the oil inlet passage 621 in a sliding seal mode is arranged, the elastic part 64 forcing the sliding seal sleeve 63 to be in close contact with the mandrel 61 is arranged, the communicating passage 300 sequentially penetrates through the sliding seal sleeve 63, the contact surface of the sliding seal sleeve 63 and the mandrel 61, and pressure oil enters the control oil passage 200 from the oil inlet passage 621 and the communicating passage 300 and does not pass through a seal cavity, so that the sealing performance is good. The elastic part 64 forces the sliding seal sleeve 63 to tightly contact with the core shaft 61, and an oil film is generated between the contact surfaces of the sliding seal sleeve 63 and the core shaft 61, so that the rotation friction between the sliding seal sleeve 63 and the core shaft 61 can be effectively reduced, the abrasion is reduced, and the sealing performance is further improved.
The elastic member 64 is an extension spring, the extension spring is installed in the sealing cavity, and two ends of the extension spring respectively abut against the housing 62 and the sliding sealing sleeve 63. One end of the sliding seal sleeve 63 is inserted into the oil inlet passage 621 and is in sliding fit with the oil inlet passage 621, and a seal ring for sealing a gap between the sliding seal sleeve 63 and the inner wall of the oil inlet passage 621 is installed on the sliding seal sleeve 63.
In this embodiment, the housing 62 is rotatably mounted on the spindle 61 through a bearing 65, and the bearing 65 is specifically fixed by a shoulder on the spindle 61 and a lock nut screwed on the spindle 61. A rotary sealing member 66 is arranged between the shell 62 and the mandrel 61 to ensure sealing, and the rotary sealing member 66 is a threaded ring.
In this embodiment, the casing 62 is provided with an oil drain port 622 communicated with the seal cavity, and the oil drain port 622 is used for discharging leaked pressure oil, so as to ensure stable and reliable operation of the hydraulic rotary joint 6.
In this embodiment, as shown in fig. 5, the hydraulic stepless adjustment clutch 3 includes a clutch housing 31 and a clutch output hub 32, the clutch housing 31 is fixedly disposed on one of the first shaft section 1 and the second shaft section 2, the clutch output hub 32 is fixedly disposed on the other of the first shaft section 1 and the second shaft section 2, a plurality of clutch outer plates 33 sequentially arranged at intervals along the axial direction of the main shaft 100 are mounted on the clutch housing 31, a clutch inner plate 34 is inserted between any two adjacent clutch outer plates 33, and each clutch inner plate 34 is mounted on the clutch output hub 32; the clutch housing 31 is provided with a cylinder body 311, a piston 35 arranged to slide along the axial direction of the main shaft 100 is installed in the cylinder body 311, an oil chamber 36 is formed between the cylinder body 311 and the piston 35, the oil chamber 36 is communicated with the control oil duct 200, when pressure oil is injected into the oil chamber 36, the piston 35 is forced to move towards the direction of pressing the clutch outer plate 33 against the action of the elastic expansion piece 37, and the piston 35 is further connected with the elastic expansion piece 37 which is forced to move towards the direction away from the clutch outer plate 33. The main structure and the manufacturing and assembling mode of the hydraulic stepless regulation clutch 3 can refer to the existing hydraulic multi-plate coupler. When the hydraulic stepless regulating clutch 3 works, pressure oil is introduced into the oil cavity 36 through the control oil passage 200, and the pressure oil can force the piston 35 to move towards the direction of pressing the clutch outer plate 33 against the action of the elastic expansion piece 37, so that the clutch outer plate 33 and the clutch inner plate 34 are pressed, and power is transmitted between the first shaft section 1 and the second shaft section 2. By changing the pressure of the pressurized oil, the pressing force of the piston 35 is correspondingly increased and decreased, so that the degree of engagement between the clutch outer 33 and the clutch inner 34 can be adjusted, and a certain slip is generated between the clutch outer 33 and the clutch inner 34, thereby adjusting the speed difference between the first shaft segment 1 and the second shaft segment 2. The hydraulic stepless regulating clutch 3 has the advantages of simple and compact structure, low cost, easy manufacture and assembly, and stable and reliable work.
In the present embodiment, as shown in fig. 1 and 2, the first shaft segment 1 has a power input member 7 connected to a power source, and the hydraulic rotary joint 6, the control oil passage 200, and the clutch housing 31 are provided on the second shaft segment 2. Thus, the power input and control are separately provided at both ends of the main shaft 100, which is advantageous for improving the structural compactness. The arrangement is characterized in that the first shaft section 1 is used as a high-speed shaft section, the first shaft section 1 and the first toothed bar 4 on the first shaft section are combined to form a high-speed roller section, the second shaft section 2 is used as a low-speed shaft section, and the second shaft section 2 and the plurality of second toothed bars 5 on the second shaft section are combined to form a low-speed roller section. In other embodiments, the hydraulic rotary joint 6, the control oil passage 200 and the clutch housing 31 can be arranged on the first shaft section 1, and the power input component 7 is arranged on the second shaft section 2; or the hydraulic rotary joint 6, the control oil passage 200, the clutch housing 31 and the power input member 7 are provided on any one of the first shaft section 1 and the second shaft section 2. The power input part 7 is a gear or a chain wheel or a belt wheel.
In this embodiment, the first shaft section 1 is fixedly connected with a plurality of first radial plates 11 which are sequentially arranged at intervals along the axial direction, a plurality of first toothed bars 4 are installed on the plurality of first radial plates 11, the second shaft section 2 is fixedly connected with a plurality of second radial plates 21 which are sequentially arranged at intervals along the axial direction, a plurality of second toothed bars 5 are installed on the plurality of second radial plates 21, the first radial plates 11 which are close to the second shaft section 2 are provided with first annular shielding parts 12, the end parts of the second toothed bars 5 extend into the first annular shielding parts 12, and the crop stalks can be prevented from being wound and interfered at the joint parts of the first shaft section 1 and the second shaft section 2 in the threshing working process. In other embodiments, a second annular shield can also be provided adjacent to the second web 21 of the first shaft portion 1, into which the end of each first toothed bar 4 projects.
A threshing device, as shown in fig. 6, comprises a concave sieve 8, a threshing cylinder and a threshing cylinder cover provided with a guide plate, wherein the threshing cylinder is the threshing cylinder of the embodiment. Wherein, the mounting and matching mode of the concave sieve 8 and the threshing cylinder can refer to the prior threshing device. The threshing device of the embodiment also has the advantages of the threshing cylinder.
In this embodiment, the concave sieve 8 is a rotary concave sieve, and the rotary concave sieve can be matched with the threshing cylinder for differential adjustment, so as to adapt to different feeding amounts and crop water contents, and realize the optimal loss rate and breakage rate index of grain harvesting. The rotary concave plate screen adopts the prior art, and for example, Chinese patent application with the publication number of CN104798529A can be referred.
When the threshing device works, cereal crops such as rice conveyed by a header of the combine harvester firstly enter the low-speed roller section, rice grains easy to thresh are firstly threshed under the combined action of the second toothed bar 5 on the low-speed roller section and the concave plate sieve 8, and the threshed grains pass through the concave plate sieve 8 and enter the cleaning device. The rice stalks and the unhusked rice ears enter the high-speed roller section through the rotation of the threshing roller, and the high-speed roller section has higher rotation speed, so that the unhusked seeds which are difficult to thresh can be threshed conveniently. And finally, throwing the threshed rice straws out of the threshing device from one end of the high-speed roller section of the threshing roller.
Adopt threshing cylinder and thresher of this embodiment, can combine real-time feeding amount, crop moisture content and percentage of damage, control the method according to threshing cylinder intelligence control system, realize threshing cylinder's high-speed section and low-speed section rotational speed adjustment and matching, carry out the adjustment of gyration notch board sieve rotational speed simultaneously for the adaptation is the objective condition of feeding amount and crop moisture content at present, realizes that the loss rate and the percentage of damage index of cereal results are optimal, satisfies the work effect that cereal harvester realized high-efficient low loss.
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 (9)
1. A threshing cylinder characterized in that: include by first shaft segment (1) and second shaft segment (2) through main shaft (100) that fluid pressure type infinitely variable control clutch (3) connected formation, install many first ratchets (4) that have first threshing teeth (41) on first shaft segment (1), install many second ratchets (5) that have second threshing teeth (51) on second shaft segment (2), the one end of main shaft (100) is equipped with hydraulic pressure rotary joint (6), be equipped with in main shaft (100) and connect control oil duct (200) of hydraulic pressure rotary joint (6) and fluid pressure type infinitely variable control clutch (3).
2. The threshing cylinder of claim 1, wherein: the hydraulic rotary joint (6) comprises a mandrel (61), a shell sleeve (62) and a sliding sealing sleeve (63), the mandrel (61) is fixedly connected to the spindle (100), the shell sleeve (62) is sleeved on the mandrel (61) in a rotary sealing connection mode, a sealing cavity is formed between the shell sleeve (62) and the mandrel (61), the shell sleeve (62) is provided with an oil inlet channel (621), the sliding sealing sleeve (63) is located in the sealing cavity and is slidably arranged in the oil inlet channel (621) in a sliding sealing mode, the sliding sealing sleeve (63) is connected with an elastic part (64) forcing the sliding sealing sleeve (63) to be in close contact with the mandrel (61), the hydraulic rotary joint (6) is further provided with a communication channel (300) which sequentially penetrates through the sliding sealing sleeve (63), a contact surface of the sliding sealing sleeve (63) and the mandrel (61), and the two ends of the communication channel (300) are respectively communicated with the oil inlet channel (621) and the control oil duct (200) correspondingly.
3. The threshing cylinder of claim 2, wherein: the shell sleeve (62) is rotatably mounted on the mandrel (61) through a bearing (65), and a rotary sealing piece (66) is arranged between the shell sleeve (62) and the mandrel (61).
4. The threshing cylinder of claim 3, wherein: and an oil drainage port (622) communicated with the sealing cavity is formed in the shell sleeve (62).
5. The threshing cylinder of claim 1, wherein: the hydraulic stepless adjusting clutch (3) comprises a clutch shell (31) and a clutch output hub (32), wherein the clutch shell (31) is fixedly arranged on one of the first shaft section (1) and the second shaft section (2), the clutch output hub (32) is fixedly arranged on the other one of the first shaft section (1) and the second shaft section (2), a plurality of clutch outer plates (33) which are sequentially arranged at intervals along the axial direction of the main shaft (100) are arranged on the clutch shell (31), a clutch inner plate (34) is inserted between any two adjacent clutch outer plates (33), and each clutch inner plate (34) is arranged on the clutch output hub (32); the clutch shell (31) is provided with a cylinder body (311), a piston (35) which is arranged along the axial direction of the main shaft (100) in a sliding mode is installed in the cylinder body (311), an oil cavity (36) is formed between the cylinder body (311) and the piston (35), the oil cavity (36) is communicated with the control oil duct (200), the piston (35) is forced to move towards the direction of pressing the clutch outer plate (33) by overcoming the action of the elastic expansion piece (37) when pressure oil is injected into the oil cavity (36), and the piston (35) is further connected with the elastic expansion piece (37) which is used for forcing the piston (35) to move towards the direction far away from the clutch outer plate (33).
6. The threshing cylinder of claim 5, wherein: the first shaft section (1) is provided with a power input component (7) connected with a power source, and the hydraulic rotary joint (6), the control oil duct (200) and the clutch housing (31) are arranged on the second shaft section (2).
7. The threshing cylinder of claim 1, wherein: the wheel hub is characterized in that a plurality of first wheel webs (11) which are sequentially arranged at intervals along the axial direction are fixedly connected to the first shaft section (1), a plurality of first toothed bars (4) are arranged on the first wheel webs (11), a plurality of second wheel webs (21) which are sequentially arranged at intervals along the axial direction are fixedly connected to the second shaft section (2), a plurality of second toothed bars (5) are arranged on the second wheel webs (21), a first annular shielding part (12) is arranged in the first wheel webs (11) which are close to the second shaft section (2), and the end part of each second toothed bar (5) extends into the first annular shielding part (12); or a second radial plate (21) close to the first shaft segment (1) is provided with a second annular shielding part, and the end part of each first rack bar (4) extends into the second annular shielding part.
8. A threshing device comprises a concave sieve (8) and a threshing cylinder, and is characterized in that: the threshing cylinder is according to any one of claims 1 to 7.
9. Threshing apparatus according to claim 8, characterized in that: the concave plate sieve (8) is a rotary concave plate sieve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010065834.6A CN111194623A (en) | 2020-01-20 | 2020-01-20 | Threshing cylinder and threshing device adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010065834.6A CN111194623A (en) | 2020-01-20 | 2020-01-20 | Threshing cylinder and threshing device adopting same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
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