CN210619264U - Cassava harvester overload protection device - Google Patents
Cassava harvester overload protection device Download PDFInfo
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- CN210619264U CN210619264U CN201921467092.9U CN201921467092U CN210619264U CN 210619264 U CN210619264 U CN 210619264U CN 201921467092 U CN201921467092 U CN 201921467092U CN 210619264 U CN210619264 U CN 210619264U
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- friction plate
- shaft sleeve
- bearing
- chain wheel
- overload protection
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Abstract
The utility model discloses a cassava harvester overload protection device, this overload protection device are through setting up on cassava harvester's vibration conveyor's driving shaft, including bearing, foraminiferous sprocket, first friction disc, take the axle sleeve friction plate, second friction disc, foraminiferous external fixation disc, spring and fastening bolt, the bearing install on vibration conveyor's driving shaft, the cover is equipped with foraminiferous sprocket on the bearing, is equipped with the jump ring groove in the foraminiferous sprocket, the jump ring groove passes through the jump ring with the bearing chucking in foraminiferous sprocket, the outside of foraminiferous sprocket be equipped with and take the axle sleeve friction plate, first friction disc and second friction disc establish on its axle sleeve from the both sides cover of taking the axle sleeve friction plate respectively. The utility model discloses overload protection effect has to make transmission system not receive the impact of too big loading capacity, avoided the fracture of conveying chain row, chain and the striking of reducing gear box gear to damage etc..
Description
Technical Field
The utility model relates to a cassava harvester, in particular to cassava harvester overload protection device.
Background
The existing common chain row separated cassava harvester has the characteristics that the viscosity of red loam in the south is high and the red loam is easy to harden in the cassava harvesting process, the cassava is easy to separate, the soil is not separated, and even a large pile of hardened soil blocks are conveyed on the separated chain row along with the cassava, so that the separated chain row is relatively heavy in load, the cassava conveying process has the defect of unsmooth, the cassava is easy to block on the conveying chain row, the condition that the chain row stops rotating and conveying is caused, the conveying mechanism is overloaded, the conveying chain row and the transmission chain are seriously broken, the reduction gearbox gear is collided and damaged, and the excavating and harvesting work of the cassava cannot be smoothly completed.
SUMMERY OF THE UTILITY MODEL
Not enough to above-mentioned prior art exists, the utility model provides a cassava harvester overload protection device has the damage that lets driving shaft and transmission system autosegregation to the overload that the cassava formed in the transportation process of carrying the chain row to avoid transmission system to receive the impact of too big loading capacity and cause.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an overload protection device of a cassava harvester is arranged on a driving shaft of a vibration conveying device of the cassava harvester and comprises a bearing, a chain wheel with holes, a first friction plate, a friction plate with a shaft sleeve, a second friction plate, a disc fixed outside the holes, a spring and a fastening bolt, wherein the bearing is arranged on the driving shaft of the vibration conveying device, the chain wheel with holes is sleeved on the bearing, a clamp spring groove is arranged in the chain wheel with holes, the clamp spring groove clamps the bearing in the chain wheel with holes through a clamp spring, the friction plate with the shaft sleeve is arranged outside the chain wheel with holes, the first friction plate and the second friction plate are respectively sleeved on shaft sleeves of the friction plate with the shaft sleeve from two sides, the first friction plate and the second friction plate are respectively clamped from two sides of the friction plate with the shaft sleeve and tightly press the friction plate surface of the friction plate with the shaft sleeve, the friction plate with the shaft sleeve is arranged on the driving shaft through a flat key, the outer side of the second friction plate is also provided with a perforated externally-fixed disc, the perforated externally-fixed disc and the perforated shaft sleeve friction plate are sleeved on the driving shaft, fastening bolts penetrate through the perforated chain wheel and the perforated externally-fixed disc, and the tightness of clamping friction among the perforated chain wheel, the first friction plate, the perforated shaft sleeve friction plate, the second friction plate and the perforated externally-fixed disc can be adjusted through springs, washers and nuts on the fastening bolts.
The first friction plate and the second friction plate are made of epoxy resin.
Compared with the prior art, the utility model has the advantages that:
in the process that cassava is conveyed by the conveying device after being excavated, when the conveying chain row is blocked and overloaded, the overload protection mechanism can be separated from the transmission system through the driving shaft, so that the driving force of the output shaft of the reduction gearbox cannot be transmitted to the driving shaft to realize idling, the transmission system is protected from being impacted by overlarge load force, the breakage of the conveying chain row and the chain and the impact damage of the gear of the reduction gearbox are avoided, and the overload protection effect is realized.
Drawings
FIG. 1 is an exploded view of the present invention;
fig. 2 is a schematic structural diagram of the driving shaft of the present invention.
In the figure: the driving wheel comprises a driving shaft 1, a bearing 2, a chain wheel with holes 3, a first friction plate 4, a friction plate with a shaft sleeve 5, a second friction plate 6, an externally fixed disk with holes 7, a spring 8, a fastening bolt 9, a snap spring 10, a washer 11, a nut 12 and a driving wheel 13.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, the overload protection device for the cassava harvester has the advantages that the overload protection device is arranged on the driving shaft 1 of the vibration conveying device of the cassava harvester, so that the driving shaft 1 is automatically separated from the transmission system for the overload formed in the conveying process of the cassava conveying chain row, and the transmission system is prevented from being damaged due to the impact of overlarge loading force.
An overload protection device of a cassava harvester comprises a bearing 2, a perforated chain wheel 3, a first friction plate 4, a friction plate with a shaft sleeve 5, a second friction plate 6, a perforated externally-fixed disc 7, a spring 8 and a fastening bolt 9, wherein the bearing 2 is arranged on a driving shaft 1 of a vibration conveying device, the perforated chain wheel 3 is sleeved on the bearing 2, a clamp spring groove is arranged in the perforated chain wheel 3, the bearing 2 is clamped in the perforated chain wheel 3 through the clamp spring 10 by the clamp spring groove, the friction plate with the shaft sleeve 5 is arranged on the outer side of the perforated chain wheel 3, the first friction plate 4 and the second friction plate 6 are respectively sleeved on the shaft sleeve from two sides of the friction plate with the shaft sleeve 5, the first friction plate 4 and the second friction plate 6 are respectively clamped from two sides of the friction plate with the shaft sleeve 5 and tightly press the friction plate surface, the friction plate with the shaft sleeve 5 is arranged on the driving shaft 1 through a flat key in a key groove, the outer side of the second friction plate 6 is further provided with a perforated external fixing disc 7, the perforated external fixing disc 7 and the perforated shaft sleeve friction plate 5 are sleeved on the driving shaft 1, fastening bolts 9 penetrate through the perforated chain wheel 3 and the perforated external fixing disc 7, and the tightness of clamping friction among the perforated chain wheel 3, the first friction plate 4, the perforated shaft sleeve friction plate 5, the second friction plate 6 and the perforated external fixing disc 7 can be adjusted through springs 8, gaskets 11 and nuts 12 on the fastening bolts 9.
The first friction plate 4 and the second friction plate 6 are made of epoxy resin.
When the tractor works, a reduction gearbox connected with a power system of the tractor drives a transmission chain, the transmission chain drives a perforated chain wheel 3 to rotate, the perforated chain wheel 3 rubs with a perforated outer fixed disc 7 through a fastening bolt 9 to drive a first friction plate 4 and a second friction plate 6 to synchronously rotate, the first friction plate 4 and the second friction plate 6 rub together to drive a friction plate 5 with a shaft sleeve to rotate, the friction plate 5 with the shaft sleeve drives a driving shaft 1 to rotate through a key slot and a flat key, the driving shaft 1 drives a conveying chain row to operate through a driving wheel 13 arranged on the driving shaft 1, when the load of load-bearing objects such as cassava, soil and the like on the conveying chain row is too large and exceeds the driving force of the perforated chain wheel 3, the friction force between the perforated chain wheel 3 and the first friction plate 4, between the friction plate 5 with the shaft sleeve, between the second friction plate 6 and the perforated outer fixed disc 7 is greatly increased, and the, The friction plate 5 with the shaft sleeve, the second friction plate 6 and the disc 7 with the hole and the external fixed disc are deeply rubbed, so that the thickness of the first friction plate 4 and the second friction plate 6 is respectively smaller than the thickness of the sprocket 3 with the hole and the friction plate 5 with the shaft sleeve and the clearance between the friction plate 5 with the shaft sleeve and the disc 7 with the hole and the first friction plate 4 and the second friction plate 6 are separated from each other, the friction force cannot be continuously generated, the first friction plate 4 and the second friction plate 6 cannot be driven to rotate, even if the friction plate 5 with the shaft sleeve is also separated from the first friction plate 4 and the second friction plate 6, the driving force cannot be transmitted to the driving shaft 1, the driving shaft 1 in the vibration conveying device is separated from the driving system, the driving system is protected from being impacted by overlarge load force, the breakage of a conveying chain row and a transmission chain is avoided, the gear impact of a reduction gearbox is damaged, and the like, after the overload protection effect occurs, the vibration conveying device is separated from the transmission system, the machine needs to be stopped to clean load-bearing objects such as cassava, soil and the like on a conveying chain row on the vibration conveying device, then the fastening bolt 9 is screwed up through the nut 12, so that the distances between the perforated chain wheel 3 and the first friction plate 4, the friction plate 5 with the shaft sleeve, the second friction plate 6 and the perforated external fixing disc 7 are continuously reduced, the friction between the perforated chain wheel 3 and the first friction plate 4, the friction plate 5 with the shaft sleeve, the second friction plate 6 and the perforated external fixing disc 7 are increased, the friction connection is established again, and the conveying chain row is driven to operate after the device is restarted.
The present invention has been described in detail with reference to the accompanying drawings, which are incorporated herein by reference, and the like, and it is to be understood that the invention is not limited to the precise forms disclosed, and that various modifications and changes may be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (2)
1. The utility model provides a cassava harvester overload protection device, this overload protection device is through setting up on cassava harvester's vibration conveyor's driving shaft (1), its characterized in that: comprises a bearing (2), a chain wheel (3) with holes, a first friction plate (4), a friction plate (5) with a shaft sleeve, a second friction plate (6), a disc (7) fixed outside the holes, a spring (8) and a fastening bolt (9), wherein the bearing (2) is arranged on a driving shaft (1) of the vibration conveying device, the chain wheel (3) with holes is sleeved on the bearing (2), a clamp spring groove is arranged in the chain wheel (3) with holes, the bearing (2) is clamped in the chain wheel (3) with holes by the clamp spring groove through a clamp spring (10), the friction plate (5) with the shaft sleeve is arranged outside the chain wheel (3) with holes, the first friction plate (4) and the second friction plate (6) are respectively sleeved on the shaft sleeve from two sides of the friction plate (5) with the shaft sleeve, the first friction plate (4) and the second friction plate (6) are respectively clamped and tightly press the friction plate surface from two sides of the friction plate (5) with the shaft, the friction plate with the shaft sleeve (5) is installed on the driving shaft (1) through a flat key in a key groove, the outer side of the second friction plate (6) is further provided with a hole external fixing disc (7), the hole external fixing disc (7) and the friction plate with the shaft sleeve (5) are sleeved on the driving shaft (1), fastening bolts (9) are arranged on the hole chain wheel (3) and the hole external fixing disc (7) in a penetrating mode, and the tightness of clamping friction among the hole chain wheel (3), the first friction plate (4), the friction plate with the shaft sleeve (5), the second friction plate (6) and the friction plate with the shaft sleeve (7) can be adjusted through springs (8), gaskets (11) and nuts (12) on the fastening bolts (9).
2. The cassava harvester overload protection device according to claim 1, wherein: the first friction plate (4) and the second friction plate (6) are made of epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921467092.9U CN210619264U (en) | 2019-09-05 | 2019-09-05 | Cassava harvester overload protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921467092.9U CN210619264U (en) | 2019-09-05 | 2019-09-05 | Cassava harvester overload protection device |
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| Publication Number | Publication Date |
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| CN210619264U true CN210619264U (en) | 2020-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921467092.9U Active CN210619264U (en) | 2019-09-05 | 2019-09-05 | Cassava harvester overload protection device |
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| CN (1) | CN210619264U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110550388A (en) * | 2019-09-05 | 2019-12-10 | 中国热带农业科学院农业机械研究所 | Cassava harvester overload protection device |
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2019
- 2019-09-05 CN CN201921467092.9U patent/CN210619264U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110550388A (en) * | 2019-09-05 | 2019-12-10 | 中国热带农业科学院农业机械研究所 | Cassava harvester overload protection device |
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