CN108668604B - Silage harvester power take-off and silage harvester - Google Patents
Silage harvester power take-off and silage harvester Download PDFInfo
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- CN108668604B CN108668604B CN201810665336.8A CN201810665336A CN108668604B CN 108668604 B CN108668604 B CN 108668604B CN 201810665336 A CN201810665336 A CN 201810665336A CN 108668604 B CN108668604 B CN 108668604B
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- disc
- power output
- output shaft
- fixedly connected
- buffer
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
- A01D69/06—Gearings
Abstract
The invention relates to a silage harvester power output device, which comprises a power output shaft, a belt pulley, a buffer mechanism and a power output shaft fixed shell; the buffer mechanism is fixedly connected with the flywheel of the engine, the power output shaft is fixedly connected with the buffer mechanism, and the belt pulley is fixedly connected with the power output shaft; the device transmits power to the buffer disc through the engine flywheel, the buffer disc, the outer disc and the pressure disc are rigidly connected, torsion is acted on the end face of the damping spring to compress the damping spring, the damping spring is forced to transmit the torsion to the middle transmission disc, the middle transmission disc and the disc hub rotate along with the engine flywheel, and the buffer disc is deformed in a proper amount through the buffer U-shaped groove and the damping spring is deformed in a compression mode in the whole power transmission process, so that the power transmission is buffered in two stages, and large impact on each transmission part due to the starting and stopping processes of the engine is avoided, and each transmission part is well protected. Also relates to a silage harvester.
Description
Technical Field
The invention relates to the field of agricultural machinery, in particular to a silage harvester power output device with a buffer structure, and also relates to a silage harvester with the power output device.
Background
The buffer device is added in the power transmission process of the engine to buffer the power output by the engine, so that the engine and various transmission parts are protected. The power output device of the general connecting engine mainly includes two kinds, one is the power output device without clutch, the device is mainly made up of internal tooth disc, external tooth disc, connecting disc, driving rubber block, the power output device of this structure adopts the rubber block as power output buffer and drive unit, its principle is that the torque output of the engine is through the rubber block set up between internal tooth disc, external tooth disc, reduce vibration and impact of the drive train, but the high-power engine torque output is bigger, the rubber block is under the condition of bearing the great pressure, is compacted easily, can not reset to the original state like the spring, buffer effect reduces after using for a period of time, can cause the damage to connecting steel, therefore this structure is only suitable for being used in the silage harvester that the supporting power is lower than 200 Kw. The second is a power output device with clutch, the structure is mainly made up of driving disc, driven disc, damping spring and friction plate, through the conversion of friction, output the torque of the engine, reduce vibration and impact of the drive train through the damping spring set up between driving disc and driven disc in the structure, have clutch function at the same time; the structure is generally used on a heavy truck matched with a high-power engine, but due to the limitation of clutch structure setting, all power output from the engine is required to be simultaneously output and cut off, the mode is not suitable for a high-power harvester, such as a silage harvester matched with power of more than 200Kw, for the high-power silage harvester, working parts driven by the engine are many, and all functional parts work out of step and cannot be started or stopped at the same time, so that a clutch function cannot be designed on an output device, and the clutch function required by the silage harvester is distributed on a transmission part of all the functional parts, such as a clutch function realized by using an oil cylinder tensioning belt. In summary, the power take-off of the prior art mechanisms coupled to the engine is not satisfactory for use with high horsepower silage harvesters.
Disclosure of Invention
The invention aims to solve the technical problem of providing a silage harvester power output device with a buffer structure, and the device can realize the buffer and power transmission functions of the power output of a clutch-free device on a high-horsepower silage harvester.
In order to solve the technical problems, in one aspect, the invention provides a silage harvester power output device with a buffer structure, which comprises a power output shaft, a belt pulley, a buffer mechanism and a power output shaft fixing shell; the buffer mechanism is fixedly connected with the flywheel of the engine, the power output shaft is fixedly connected with the buffer mechanism, and the belt pulley is fixedly connected with the power output shaft;
the buffer mechanism comprises a buffer disc, a damping spring, a disc hub, an intermediate transmission disc, a pressure disc and an outer disc; the damping disc, the disc hub, the middle transmission disc, the pressure disc and the outer disc are coaxially arranged, the outer disc and the pressure disc are fixedly connected to form a damping spring mounting cavity, the damping disc and the bottom of the outer disc are detachably and fixedly connected, and the damping disc and the engine flywheel are coaxially detachably and fixedly connected; the middle transmission disc is positioned in the damping spring mounting cavity, and the disc hub and the middle transmission disc form detachable fixed connection; the middle transmission disc, the pressure disc and the outer disc are uniformly provided with spring mounting grooves with the same number along the central axis in a circle, the damping springs are clamped and fixed in the spring mounting grooves, and the middle transmission disc is in transmission connection with the pressure disc and the outer disc through the end surfaces of the damping springs; the power output shaft is detachably and fixedly connected in the central hole of the disk hub, and the power output shaft and the disk hub form synchronous rotation connection.
The buffer disc is circular, the circular center is provided with a mounting hole, and a plurality of buffer U-shaped grooves are formed in the periphery of the outer circle of the buffer disc.
The outer disc is circular, the center of the bottom is provided with a mounting hole, an annular flanging is arranged at one circle of the circular shape, and a plurality of openings are uniformly distributed on the end face of one circle of the annular flanging; the pressure plate is round, and a plurality of circumferential racks are uniformly distributed on one circle of the pressure plate; the circumference rack joint of pressure disk is in the opening of outer dish, pressure disk and annular turn-ups fixed connection, constitutes damping spring installation cavity between outer dish and the pressure disk.
The middle transmission disc is circular, a cylindrical boss is arranged in the center of the middle transmission disc, a mounting hole is formed in the center of the cylindrical boss, the outer circle of the disc hub is fixedly connected in the mounting hole in the center of the cylindrical boss, and the middle transmission disc and the disc hub form coaxial lines which are detachably and fixedly connected.
And an inner spline is arranged in the mounting hole of the middle transmission disc, an outer spline is arranged on the outer circle of the disc hub, and the middle transmission disc is fixedly connected with the disc hub through the fit of the inner spline and the outer spline.
An internal spline is arranged in the central hole of the disk hub, and the power output shaft is fixedly inserted into the internal spline of the central hole of the disk hub through the external spline.
The power output shaft fixing shell is fixed with the flywheel shell; one end of the power output shaft extends into the center of the engine flywheel and is in rotary supporting connection with the engine flywheel, and the other end of the power output shaft is positioned in the power output shaft fixing shell and is in rotary supporting connection with the power output shaft fixing shell.
The belt pulley is fixedly connected to the shaft end plane of the power output shaft; the belt pulley is provided with a travelling device driving belt pulley groove, a heat dissipation device driving belt pulley groove, a throwing device driving belt pulley groove and a shredding device driving belt pulley groove.
The damping spring comprises a large spring and a small spring, wherein the small spring is arranged in a center hole of the large spring.
On the other hand, the invention also provides a silage harvester which comprises an engine, a power output device and a plurality of operation units, wherein the power output device is the silage harvester power output device, a buffer mechanism of the power output device is fixedly connected with an engine flywheel, and the operation units are connected with a belt pulley of the power output device.
The invention has the positive effects that: according to the silage harvester power output device with the buffer structure, power is transmitted to the buffer disc through the engine flywheel, the buffer disc, the outer disc and the pressure disc are rigidly connected, torsion is acted on the end face of the shock absorption spring to enable the shock absorption spring to compress, the shock absorption spring is forced to transmit the torsion to the middle transmission disc, the middle transmission disc and the disc hub rotate along with the engine flywheel, and in the whole power transmission process, the power transmission is buffered in two stages through proper deformation of the buffer U-shaped groove on the buffer disc and compression deformation of the shock absorption spring, so that large impact on each transmission part caused by the starting and stopping processes of the engine is avoided, and each transmission part is well protected. The disk hub is connected with the power output shaft so as to drive the power output shaft to rotate, and the power output shaft can transmit the power of the engine out in the form of driving a belt pulley or a hydraulic pump and the like.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic view of a conventional clutch-free power output apparatus
FIG. 2 is a schematic view of the structure of the present invention
FIG. 3 is a schematic view of the structure of the present invention
FIG. 4 is a schematic view of the connection structure of the present invention
In the figure, an outer fluted disc 1, an inner fluted disc 2, a connecting disc 3, a driving rubber block 4, a buffer disc 5, a damping spring 6, a disc hub 7, an intermediate driving disc 8, a fixed rivet 9, a pressure disc 10, an outer disc 11, a buffer U-shaped groove 12, a belt pulley 13, a power output shaft 14, a buffer mechanism 15, an engine flywheel 16, a flywheel shell 17 and a power output shaft fixed shell 18.
Detailed Description
As shown in fig. 1, the conventional power output device without a clutch mainly comprises an inner gear plate 2, an outer gear plate 1, a connecting disc 3 and a driving rubber block 4, and the power output device with the structure adopts the driving rubber block 4 as a power output buffer and transmission device, and the principle is that the torque of an engine is output through the driving rubber block 4 arranged between the inner gear plate 2 and the outer gear plate 1, so that the vibration and impact of a transmission system are reduced. The power output device with the structure is applicable to silage harvesters with matched power lower than 200Kw, and has a wider application range than the silage harvesters with the buffer structure.
As shown in fig. 2 to 4, the silage harvester power output device with the buffering structure comprises a power output shaft 14, a belt pulley 13, a buffering mechanism 15 and a power output shaft fixing shell 18; the buffer mechanism 15 is fixedly connected with the engine flywheel 16, the power output shaft 14 is fixedly connected with the buffer mechanism 15, and the belt pulley 13 is fixedly connected with the power output shaft 14; the buffer mechanism 15 comprises a buffer disc 5, a damping spring 6, a disc hub 7, an intermediate transmission disc 8, a pressure disc 10 and an outer disc 11; the buffer disc 5, the disc hub 7, the middle transmission disc 8, the pressure disc 10 and the outer disc 11 are coaxially arranged, the outer disc 11 and the pressure disc 10 are fixedly connected to form a damping spring mounting cavity, the buffer disc 5 and the bottom of the outer disc 11 are detachably and fixedly connected, and the buffer disc 5 and the engine flywheel 16 are coaxially and detachably and fixedly connected; the middle transmission disc 8 is positioned in the damping spring mounting cavity, and the disc hub 7 and the middle transmission disc 8 form detachable fixed connection; 6 spring mounting grooves are uniformly distributed on the middle transmission disc 8, the pressure disc 10 and the outer disc 11 along the central axis along a circle, 6 damping springs 6 are respectively clamped and fixed in the spring mounting grooves, and the middle transmission disc 8 is in transmission connection with the pressure disc 10 and the outer disc 11 through the end surfaces of the damping springs 6; the power output shaft 14 is detachably and fixedly connected in the central hole of the disk hub 7, and the power output shaft and the disk hub form synchronous rotation connection; the damping spring 6 comprises a large spring and a small spring, the small spring is arranged in a central hole of the large spring, the large spring and the small spring can be used independently or can be used in combination according to the needs, a single large spring or a small spring design can be adopted for the engine with small power, and the combined spring design is adopted for the engine with large power.
The buffer disc 5 is circular, the mounting hole is formed in the center of the circular shape, 8 buffer U-shaped grooves 12 are formed in the periphery of the outer circle of the buffer disc 5, when the buffer U-shaped grooves 12 of the buffer disc 5 are impacted, a certain deformation amount can be achieved, the buffer disc 5 is made of a steel plate with high strength, certain toughness and plasticity, for example 65Mn.
The outer disc 11 is circular, the center of the bottom is provided with a mounting hole, an annular flanging is arranged at one circle of the circular shape, and a plurality of openings are uniformly distributed on the end face of one circle of the annular flanging; the pressure plate 10 is circular, and a plurality of circumferential racks are uniformly distributed on one circle of the pressure plate 10; the circumferential rack of the pressure plate 10 is clamped in the opening of the outer plate 11, the pressure plate 10 is fixedly connected with the annular flanging, and a damping spring mounting cavity is formed between the outer plate 11 and the pressure plate 10.
The middle transmission disc 8 is circular, a cylindrical boss is arranged in the center, a mounting hole is formed in the center of the cylindrical boss, the outer circle of the disc hub 7 is fixedly connected in the mounting hole in the center of the cylindrical boss, and the middle transmission disc 8 and the disc hub 7 form coaxial line and can be detached and fixedly connected.
An inner spline is arranged in a mounting hole of the middle transmission disc 8, an outer spline is arranged on the outer circle of the disc hub 7, and the middle transmission disc is fixedly connected with the disc hub through the matching of the inner spline and the outer spline.
An internal spline is arranged in the central hole of the disc hub 7, and the power output shaft 14 is fixedly inserted into the internal spline of the central hole of the disc hub 7 through the external spline.
The power output shaft fixing shell 18 is fixed with the flywheel shell 17; one end of the power output shaft 14 extends into the center of the engine flywheel 16 and is fixed with the bearing inner ring in the center of the engine flywheel 16, the two parts form a rotation support connection, the other end of the power output shaft 14 is positioned in the power output shaft fixing shell 18 and is fixed with the bearing inner ring in the center of the power output shaft fixing shell 18, and the two parts form a rotation support connection.
The belt pulley 13 is fixedly connected to the shaft end plane of the power output shaft 14; the belt pulley 13 is provided with a traveling device driving belt pulley groove, a heat dissipation device driving belt pulley groove, a throwing device driving belt pulley groove and a shredding device driving belt pulley groove.
The operation unit of the silage harvester mainly comprises a running gear, a heat dissipation device, a throwing device and a shredding device, wherein the running gear, the heat dissipation device, the throwing device and the shredding device are in transmission connection with a belt pulley 13 through belts.
During assembly, the damping springs 6 are fixed in spring mounting grooves distributed on the circumference of the middle transmission disc 8, then the middle transmission disc 8 provided with the damping springs 6 is placed in a damping spring mounting cavity, the damping springs 6 are embedded into the spring mounting grooves of the outer disc 11, the disc hub 7 is mounted, external splines of the disc hub 7 are connected with internal splines of the middle transmission disc 8, the pressure disc 10 is fixedly mounted, the spring mounting grooves of the outer disc 11, the middle transmission disc 8 and the pressure disc 10 are overlapped, simultaneously, the notch of the outer disc 11 is overlapped with the circumferential rack of the pressure disc 10, and the notch is welded with the rack, so that the outer disc 11 and the pressure disc 10 are integrated. The buffer disc 5 is connected to the outer disc 11, and in this case, the buffer disc 5 may be connected to the engine flywheel 16 by riveting or bolting.
On the other hand, the invention also provides a silage harvester which comprises an engine, a power output device and a plurality of operation units, wherein the power output device is the silage harvester power output device with the buffering structure, the buffering mechanism 15 of the power output device is fixedly connected with the engine flywheel 16, and the operation units are connected with the belt pulley 13 of the power output device.
The operation unit may include, for example, one or more of a travelling device, a heat dissipating device, a throwing device, and a shredding device, and all of the operation units may be in transmission connection with the pulley 13 via a belt. The above description is only for illustrating some functional structural principles of a silage harvester power take-off with a buffer structure related to the present invention, and since it is easy for those skilled in the art to make several modifications on this basis, the present description is not intended to limit the silage harvester power take-off with a buffer structure to the specific mechanism and application range shown or described, and all possible modifications and equivalents thereof are deemed to fall within the scope of protection of the present invention.
Claims (10)
1. The utility model provides a silage harvester power take off which characterized in that: comprises a power output shaft, a belt pulley, a buffer mechanism and a power output shaft fixing shell; the buffer mechanism is suitable for being fixedly connected with an engine flywheel, the power output shaft is fixedly connected with the buffer mechanism, and the belt pulley is fixedly connected with the power output shaft;
the buffer mechanism comprises a buffer disc, a damping spring, a disc hub, an intermediate transmission disc, a pressure disc and an outer disc; the damping disc, the disc hub, the middle transmission disc, the pressure disc and the outer disc are coaxially arranged, the outer disc and the pressure disc are fixedly connected to form a damping spring mounting cavity, the damping disc and the bottom of the outer disc are detachably and fixedly connected, and the damping disc and the engine flywheel are coaxially detachably and fixedly connected; the middle transmission disc is positioned in the damping spring mounting cavity, and the disc hub and the middle transmission disc form detachable fixed connection; the middle transmission disc, the pressure disc and the outer disc are uniformly provided with spring mounting grooves with the same number along the central axis in a circle, the damping springs are clamped and fixed in the spring mounting grooves, and the middle transmission disc is in transmission connection with the pressure disc and the outer disc through the end surfaces of the damping springs; the power output shaft is detachably and fixedly connected in the central hole of the disk hub, and the power output shaft and the disk hub form synchronous rotation connection.
2. The silage harvester power take off of claim 1, wherein: the buffer disc is circular, the circular center is provided with a mounting hole, and a plurality of buffer U-shaped grooves are formed in the periphery of the outer circle of the buffer disc.
3. The silage harvester power take off of claim 1, wherein: the outer disc is circular, the center of the bottom is provided with a mounting hole, an annular flanging is arranged at one circle of the circular shape, and a plurality of openings are uniformly distributed on the end face of one circle of the annular flanging; the pressure plate is round, and a plurality of circumferential racks are uniformly distributed on one circle of the pressure plate; the circumference rack joint of pressure disk is in the opening of outer dish, pressure disk and annular turn-ups fixed connection, constitutes damping spring installation cavity between outer dish and the pressure disk.
4. The silage harvester power take off of claim 1, wherein: the middle transmission disc is circular, a cylindrical boss is arranged in the center of the middle transmission disc, a mounting hole is formed in the center of the cylindrical boss, the outer circle of the disc hub is fixedly connected in the mounting hole in the center of the cylindrical boss, and the middle transmission disc and the disc hub form coaxial lines which are detachably and fixedly connected.
5. The silage harvester power take off of claim 4, wherein: and an inner spline is arranged in the mounting hole of the middle transmission disc, an outer spline is arranged on the outer circle of the disc hub, and the middle transmission disc is fixedly connected with the disc hub through the fit of the inner spline and the outer spline.
6. The silage harvester power take off of claim 1, wherein: an internal spline is arranged in the central hole of the disk hub, and the power output shaft is fixedly inserted into the internal spline of the central hole of the disk hub through the external spline.
7. The silage harvester power take off of claim 1, wherein: the power output shaft fixing shell is fixed with the flywheel shell; one end of the power output shaft extends into the center of the engine flywheel and is in rotary supporting connection with the engine flywheel, and the other end of the power output shaft is positioned in the power output shaft fixing shell and is in rotary supporting connection with the power output shaft fixing shell.
8. The silage harvester power take off of claim 7, wherein: the belt pulley is fixedly connected to the shaft end plane of the power output shaft; the belt pulley is provided with a travelling device driving belt pulley groove, a heat dissipation device driving belt pulley groove, a throwing device driving belt pulley groove and a shredding device driving belt pulley groove.
9. The silage harvester power take off of claim 1, wherein: the damping spring comprises a large spring and a small spring, wherein the small spring is arranged in a center hole of the large spring.
10. The utility model provides a silage harvester, this silage harvester includes engine, power take off and a plurality of operation unit, its characterized in that: the power output device is the silage harvester power output device according to any one of claims 1-9, a buffer mechanism of the power output device is fixedly connected with an engine flywheel, and the plurality of operation units are connected with a belt pulley of the power output device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810665336.8A CN108668604B (en) | 2018-06-26 | 2018-06-26 | Silage harvester power take-off and silage harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810665336.8A CN108668604B (en) | 2018-06-26 | 2018-06-26 | Silage harvester power take-off and silage harvester |
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| Publication Number | Publication Date |
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| CN108668604A CN108668604A (en) | 2018-10-19 |
| CN108668604B true CN108668604B (en) | 2023-07-07 |
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| CN201810665336.8A Active CN108668604B (en) | 2018-06-26 | 2018-06-26 | Silage harvester power take-off and silage harvester |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111386858B (en) * | 2020-03-20 | 2022-11-22 | 石家庄美迪机械有限公司 | Power output system of straw harvesting device and transmission system with same |
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| Publication number | Publication date |
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| CN108668604A (en) | 2018-10-19 |
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