CN212775400U - Sugarcane squeezes planetary gear case - Google Patents
Sugarcane squeezes planetary gear case Download PDFInfo
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- CN212775400U CN212775400U CN202021758958.4U CN202021758958U CN212775400U CN 212775400 U CN212775400 U CN 212775400U CN 202021758958 U CN202021758958 U CN 202021758958U CN 212775400 U CN212775400 U CN 212775400U
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Abstract
The utility model relates to a sugarcane squeezing planetary gear box, which comprises an input shaft; the input shaft is provided with a first planet wheel; the first planet wheel is engaged with a first inner gear ring so as to realize first-stage speed reduction; a first planet shaft is arranged in the first planet wheel; the first planet shaft drives a first planet carrier; the first planet carrier is driven by a second sun gear through a spline; the second sun gear is meshed with a second planet gear and a second inner gear ring, so that secondary speed reduction is realized; a second planet shaft is arranged in the second planet wheel; the second planet shaft drives a second planet carrier and a third planet carrier; the third planet carrier is driven by a third sun gear through a spline; the third sun gear is meshed with a third planet gear and a third inner gear ring; thereby realizing three-stage speed reduction. Its advantages are: the three-stage speed reduction achieves the torque required by work by shunting through planetary transmission, and has small volume, light weight and large output torque.
Description
Technical Field
The utility model belongs to the technical field of the gear box technique and specifically relates to a sugarcane squeezes planetary gear case.
Background
The speed reducer is a necessary corollary device of the sugar press, the production history of the speed reducer of the sugar press is long, and manufacturers mostly adopt two-stage speed reduction and power double shunting, however, the existing sugar press speed reducer has the following defects and shortcomings:
firstly, a gear box required by the sugar pressing industry has the characteristics of low speed, heavy load and large torque, and the gear box in the industry is mostly provided with a speed reducer with a soft tooth surface, but the soft tooth surface gear box has low bearing capacity, small load and low transmission efficiency. The gear box with the hard tooth surface can overcome the difficulties and has the characteristics of advanced property, high bearing capacity, high efficiency and the like. Therefore, the application of the parallel shaft gear box with the hard tooth surface is gradually increased, but the parallel shaft gear box has large installation space and high production and maintenance cost, thereby limiting the equipment transformation of the sugar industry and increasing the production cost of the sugar industry.
Secondly, the floating amount of the press roll at the output end of the planetary gearbox driven by the sugarcane press is large, the transmission of gears in the gearbox is influenced, the load balancing effect of the planetary box is poor, the lubricating effect is poor, castings are mostly adopted due to the complex structure of the planet carrier of the planetary box, the defects of large castings are more, the planet carrier of the planetary box with splines needs to be made of cast alloy steel, the casting performance of the cast alloy steel is poorer, the defects are easier to occur, the planet carrier of the planetary box needs to be subjected to spline transmission, the defects are not allowed to exist, the rejection rate of the large cast planet carrier with the splines is high, and the gearbox is difficult to maintain in the using process.
Chinese patent document CN200620076887.3, application date 20060822, with patent names: a novel sugar press speed reducer set discloses a novel sugar press speed reducer set. The central driving power double-flow type reduction gear box is composed of an I-level gear shaft, an I-level large gear, an II-level gear shaft, an II-level large gear, an III-level gear shaft and an III-level large gear, the speed ratio of the reduction gear box is 40-50, the speed ratio of each level is less than 3.8, a front reduction gear box is arranged in front of the I-level gear shaft of the reduction gear box and connected through a coupler, and the front reduction gear box is a parallel shaft reduction gear.
The novel sugar press speed reducing unit of the patent document is characterized in that a front speed reducing gear box is arranged in front of an I-stage gear shaft of a central driving power double-shunting type three-stage speed reducing gear box, so that the speed reducing ratio and the overall dimension of the original speed reducing gear box are reduced, meanwhile, the requirement of a sugar press on the speed ratio of a speed reducer in a newly-built large-scale sugar factory can be met, the integral output torque and the bearing capacity of the speed reducing unit are improved, after the front speed reducing gear box is arranged, the total speed reducing ratio of the sugar press speed reducing unit is 125-400, and the output torque is 180-460 tons. However, the technical scheme that the split is carried out through the planetary transmission, the three-stage speed reduction achieves the torque required by work, the size is small, the weight is light, and the output torque is large is not disclosed correspondingly.
In view of the above, there is a need for a sugarcane crushing planetary gearbox that splits through planetary transmission, reduces speed in three stages to achieve the torque required for operation, and provides a small size, light weight, and large output torque. No report is found about the sugarcane crushing planetary gearbox at present.
Disclosure of Invention
The utility model aims at providing a reposition of redundant personnel through planetary drive, tertiary speed reduction reaches the required moment of torsion of work, provides small, light in weight and the sugarcane squeezes planetary gear case that the output torque is big.
In order to achieve the purpose, the utility model adopts the technical proposal that:
a sugarcane crushing planetary gearbox comprises a box body; an input shaft is arranged in the box body; the input shaft is provided with a first planet wheel; the first planet wheel is engaged with a first inner gear ring so as to realize first-stage speed reduction;
a first planet shaft is arranged in the first planet wheel; the first planet shaft drives a first planet carrier; the first planet carrier is driven by a second sun gear through a spline; the second sun gear is meshed with a second planet gear and a second inner gear ring, so that secondary speed reduction is realized;
a second planet shaft is arranged in the second planet wheel; the second planet shaft drives a second planet carrier and a third planet carrier; the second planet carrier and the third planet carrier are connected through a bolt; the third planet carrier is driven by a third sun gear through a spline; the third sun gear is meshed with a third planet gear and a third inner gear ring; thereby realizing three-stage speed reduction.
As a preferable technical scheme, the transmission of the first planet wheel is fixed by the first planet wheel and the first inner gear ring; the first planet carrier is in a floating mode.
As a preferable technical scheme, the transmission of the second planet wheel adopts the second inner gear ring and the second planet carrier to be fixed, and the second sun wheel floats to achieve automatic load balancing.
As a preferable technical scheme, the transmission of the third planet gear adopts the third inner gear ring and the third planet carrier to be fixed, and the third sun gear floats to achieve automatic load balancing.
As a preferred technical solution, the third planet wheel adopts a four-split mode.
As a preferable technical scheme, the splines of the first planet wheel, the second planet wheel and the third planet wheel for transmitting torque in transmission are subjected to drum repair, and the design mode of increasing the swing angle is adopted.
As a preferred technical solution, the planetary gearbox further comprises a box body; the third planet shaft drives a fourth planet carrier and a fifth planet carrier; the fourth planet carrier and the fifth planet carrier are connected through bolts.
As a preferable technical scheme, the fifth planet carrier is driven by an output shaft through a spline; and two ends of the output shaft are provided with self-aligning roller bearings.
As a preferable technical scheme, the first planet carrier and the second planet carrier are designed in a split structure.
As a preferred technical scheme, a fan-shaped oil spraying pipe with two rows of annular holes is arranged in the box body.
The utility model has the advantages that:
1. the utility model discloses a sugarcane squeezes planetary gear case, to the requirement to design parameter and transmission form that the user provided, developed the hard flank of tooth gear case of planetary drive, this gear case shunts through planetary drive, and tertiary speed reduction has satisfied the characteristics of the high-power big moment of torsion of press sugar low-speed heavy load, selects reasonable structure and bearing, gear, through optimal design, complete machine compact structure, small, light in weight.
2. The first planet wheel, the second planet wheel and the third planet wheel are subjected to drum repair on splines for transmitting torque in transmission, and the design mode of the swing angle is increased. The effect of this design is: the load distribution among the planet wheels is uniform under the condition that the floating parts such as the planet carrier, the sun wheel and the like and the floating of the press roll generate displacement when the stress is unbalanced.
3. The fifth planet carrier is driven by a spline to be provided with an output shaft; and two ends of the output shaft are provided with self-aligning roller bearings. Through self-aligning roller bearing, can reduce the influence of squeeze roller float to the gear box.
Drawings
Fig. 1 is a schematic structural view of the sugarcane squeezing planetary gear box of the utility model.
Detailed Description
The invention will be further described with reference to the following examples and with reference to the accompanying drawings.
The reference numerals and components referred to in the drawings are as follows:
1. input shaft 2. first planetary gear
3. First inner gear ring 4. first planet shaft
5. First planet carrier 6, second sun gear
7. Second planet wheel 8, second inner gear ring
9. Second planetary shaft 10, second planetary carrier
11. Third planet carrier 12, third sun gear
13. Third planet gear 14, third ring gear
15. Third planet shaft 16, fourth planet carrier
17. Fifth planet carrier 18. bearing
19. Output shaft
Referring to fig. 1, fig. 1 is a schematic structural view of a sugarcane crushing planetary gear box of the present invention. A sugarcane squeezes the planetary gearbox, the said planetary gearbox includes the body of the case, mount the input shaft 1 in the said body of case; the input shaft 1 is provided with a first planet wheel 2; the first planet wheel 2 is engaged with a first inner gear ring 3, so that first-stage speed reduction is realized;
a first planet shaft 4 is arranged in the first planet wheel 2; the first planet shaft 4 is driven by a first planet carrier 5; the first planet carrier 5 is driven by a second sun gear 6 through a spline; the second sun gear 6 is meshed with a second planet gear 7 and a second inner gear ring 8, so that secondary speed reduction is realized;
a second planet shaft 9 is arranged in the second planet wheel 7; the second planet shaft 9 is driven by a second planet carrier 10 and a third planet carrier 11; the second planet carrier 10 and the third planet carrier 11 are connected through bolts; the third planet carrier 11 is driven by a third sun gear 12 through a spline; the third sun gear 12 is meshed with a third planet gear 13 and a third inner gear ring 14; thereby realizing three-stage speed reduction.
The third planet shaft 15 drives a fourth planet carrier 16 and a fifth planet carrier 17; the fourth planet carrier 16 and the fifth planet carrier 17 are connected through bolts. The fifth planet carrier 17 is driven by an output shaft 19 through a spline; two ends of the output shaft 19 are provided with self-aligning roller bearings 18.
The transmission of the first planet wheel 2 adopts the fixation of the first planet wheel 2 and the first inner gear ring 3; the first planet carrier 5 is in a floating mode; the transmission of the second planet wheel 7 adopts the second inner gear ring 8 and the second planet carrier 10 to be fixed, and the second sun wheel 6 floats to achieve automatic load balancing; the transmission of the third planet wheel 13 adopts the third inner gear ring 14 to be fixed with the third planet carrier 11, and the third sun gear 12 floats to achieve automatic load balancing.
The first planet wheel 2, the second planet wheel 7 and the third planet wheel 13 are subjected to drum repair on splines for transmitting torque in transmission, and the design mode of increasing the swing angle is adopted.
The planetary gearbox also comprises a gearbox body; the third planet shaft 15 drives a fourth planet carrier 16 and a fifth planet carrier 17; the fourth planet carrier 16 and the fifth planet carrier 17 are connected through bolts.
The embodiment needs to be explained as follows:
the transmission of the first planet wheel 2 adopts the fixation of the first planet wheel 2 and the first inner gear ring 3; the first planet carrier 5 is in a floating mode. The effect of this design is: because of the box body is big at the rotational speed of input shaft 1 end, this design is favorable to carrying out the transmission, protects first planet carrier 5 simultaneously.
The transmission of the second planet wheel adopts the second inner gear ring 8 and the second planet carrier 10 to be fixed, and the second sun wheel 6 floats to achieve automatic load balancing; the transmission of the third planet wheel adopts the third inner gear ring 14 to be fixed with the third planet carrier 11, and the third sun gear 12 floats to achieve automatic load balancing. The effect of this design is: therefore, the automatic load balancing is achieved through the floating of the second sun gear 6 and the third sun gear 12, and the load balancing effect of the whole box body is good.
The third planet wheel adopts a four-branch form. The effect of this design is: the transmission torque capacity is larger than three-shunt, the uneven load coefficient is smaller than five-shunt, and the planetary gearbox is more suitable for the sugarcane press planetary gearbox with large torque.
The first planet wheel 2, the second planet wheel 7 and the third planet wheel 13 are subjected to drum repair on splines for transmitting torque in transmission, and the design mode of increasing the swing angle is adopted. The effect of this design is: the load distribution among the planet wheels is uniform under the condition that the floating parts such as the planet carrier, the sun wheel and the like and the floating of the press roll generate displacement when the stress is unbalanced.
The third planet shaft 15 drives a fourth planet carrier 16 and a fifth planet carrier 17; the fourth planet carrier 16 and the fifth planet carrier 17 are connected through bolts. The effect of this design is: through bolted connection, connect reliably, be convenient for stably transmit the moment of torsion.
The fifth planet carrier 17 is driven by an output shaft 19 through a spline; two ends of the output shaft 19 are provided with self-aligning roller bearings 18. The influence of the floating of the press roll on the gear box can be reduced by the self-aligning roller bearing 18.
The first planet carrier 5 and the second planet carrier 10 adopt a split structure design. The planet carrier with the spline is made of alloy steel forgings, the defect probability is low, the two parts of the planet carrier are assembled into a whole in a bolt-pin connection mode, the material and defect control requirements of the spline torque transmission requirements are met, and the requirements of the planet carrier with the complex structure and the casting parts are met. The probability of scrapping the planet carrier due to the defect problem is reduced.
Design of lubrication of the planetary box: because the planetary gear box has compact structure, more gears are meshed, more bearings 18 are arranged, and more planetary gears are arranged in the planetary gear box, and the lubrication is difficult, the planetary gear box is designed into a mode of combining oil spraying lubrication and oil invasion lubrication. Because the first stage and the second stage of planetary transmission have higher rotating speed, the fan-shaped oil spraying pipes provided with two rows of annular holes are arranged in the box body to respectively spray the meshing surface and the bearing 18 or drill annular holes in the box body for oil spraying and lubrication. In the third stage, because the heating amount of the slowly-stirred oil at the rotating speed is small, oil-immersed lubrication is combined in addition to a first-stage oil-injection lubrication mode and a second-stage oil-injection lubrication mode, the first planetary shaft 4, the second planetary shaft 9 and the third planetary shaft 15 are hollow, cover plates are arranged on the end faces of the first planetary shaft, and therefore the lubricating oil in the third stage can lubricate the bearing 18 through radial holes in the rotating process.
All the box bodies are in a split type, and the upper box body can be detached in later maintenance to see the operation condition of the gear box and corresponding maintenance.
The utility model discloses a sugarcane squeezes planetary gear case, to the requirement to design parameter and transmission form that the user provided, developed the hard flank of tooth gear case of planetary drive, this gear case shunts through planetary drive, and tertiary speed reduction has satisfied the characteristics of the high-power big moment of torsion of the high-power of sugar squeezing low-speed heavy load, selects reasonable structure and bearing 18, gear, through optimal design, complete machine compact structure, small, light in weight.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and additions can be made without departing from the principles of the present invention, and these improvements and additions should also be regarded as the protection scope of the present invention.
Claims (10)
1. The sugarcane crushing planetary gearbox is characterized by comprising a gearbox body; an input shaft is arranged in the box body; the input shaft is provided with a first planet wheel; the first planet wheel is engaged with a first inner gear ring so as to realize first-stage speed reduction;
a first planet shaft is arranged in the first planet wheel; the first planet shaft drives a first planet carrier; the first planet carrier is driven by a second sun gear through a spline; the second sun gear is meshed with a second planet gear and a second inner gear ring, so that secondary speed reduction is realized;
a second planet shaft is arranged in the second planet wheel; the second planet shaft drives a second planet carrier and a third planet carrier; the second planet carrier and the third planet carrier are connected through a bolt; the third planet carrier is driven by a third sun gear through a spline; the third sun gear is meshed with a third planet gear and a third inner gear ring; thereby realizing three-stage speed reduction.
2. The sugarcane crushing planetary gearbox as claimed in claim 1, wherein the transmission of the first planetary wheel is fixed with a first inner gear ring by the first planetary wheel; the first planet carrier is in a floating mode.
3. The sugarcane crushing planetary gearbox of claim 1, wherein the transmission of the second planet wheel is fixed with the second planet carrier by adopting a second inner gear ring, and the second sun wheel floats to achieve automatic load balancing.
4. The sugarcane crushing planetary gearbox as claimed in claim 1, wherein the transmission of the third planetary gear is fixed with the third planet carrier by using a third inner gear ring, and the third sun gear floats to achieve automatic load balancing.
5. The sugarcane crushing planetary gearbox of claim 1, wherein the third planetary gear takes the form of a four-split flow.
6. The sugarcane crushing planetary gearbox as claimed in claim 1, wherein splines of the first planetary gear, the second planetary gear and the third planetary gear which transmit torque in transmission are subjected to drum repair, and the design mode of increasing the swing angle is adopted.
7. The sugar cane crushing planetary gearbox of claim 1, wherein the planetary gearbox further comprises a box body; the third planet shaft drives a fourth planet carrier and a fifth planet carrier; the fourth planet carrier and the fifth planet carrier are connected through bolts.
8. The sugarcane crushing planetary gearbox of claim 7, wherein the fifth planet carrier is driven by a spline with an output shaft; and two ends of the output shaft are provided with self-aligning roller bearings.
9. The sugarcane crushing planetary gearbox of claim 1, wherein the first planet carrier and the second planet carrier are designed in a split structure.
10. The sugarcane crushing planetary gearbox of claim 1, wherein a fan-shaped oil spraying pipe with two rows of annular holes is installed in the box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021758958.4U CN212775400U (en) | 2020-08-21 | 2020-08-21 | Sugarcane squeezes planetary gear case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021758958.4U CN212775400U (en) | 2020-08-21 | 2020-08-21 | Sugarcane squeezes planetary gear case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212775400U true CN212775400U (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021758958.4U Active CN212775400U (en) | 2020-08-21 | 2020-08-21 | Sugarcane squeezes planetary gear case |
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| Country | Link |
|---|---|
| CN (1) | CN212775400U (en) |
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- 2020-08-21 CN CN202021758958.4U patent/CN212775400U/en active Active
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