CN218817899U - Hollow sealed cycloidal speed reducer for heavy industrial equipment - Google Patents
Hollow sealed cycloidal speed reducer for heavy industrial equipment Download PDFInfo
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- CN218817899U CN218817899U CN202223107257.6U CN202223107257U CN218817899U CN 218817899 U CN218817899 U CN 218817899U CN 202223107257 U CN202223107257 U CN 202223107257U CN 218817899 U CN218817899 U CN 218817899U
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Abstract
The utility model discloses a heavy industry is cavity canned type cycloid speed reducer for equipment, including needle shell, back planet carrier, eccentric shaft, cycloid wheel, kingpin, preceding planet carrier, the planetary gear that gradually bursts at seams, the sun gear that gradually bursts at seams, column type taper pin, the input gear axle that gradually bursts at seams, first end cover, second end cover, drive gear axle. The utility model discloses a heavy industry equipment for hollow canned type cycloidal reducer, tertiary speed reduction, the transmission is steady, the moment of torsion is big, bearing capacity is strong, the cycloidal gear uses single difference tooth structure, cycloidal gear, kingpin, needle shell full tooth rolling friction contact, the rigidity is good, single difference tooth meshing is changeed and is realized high driving chain error and return difference requirement, the rigidity is better, the backlash is smaller, can avoid the speed reducer shake in the use, the too big condition of damping vibrations; the front planet carrier and the rear planet carrier adopt a column type taper pin connecting structure, have the characteristics of simple structure, convenient processing, high strength and the like, and can ensure the identity of processing and assembling.
Description
Technical Field
The utility model belongs to the technical field of the speed reducer and specifically relates to a cavity canned type cycloidal reducer for heavy industrial equipment is related to.
Background
The RV (Rot-vector) transmission (belonging to a crank type closed differential gear train) for the robot is a novel transmission developed on the basis of cycloidal pin wheel transmission, and is mainly characterized by three large (large transmission ratio, large bearing capacity and rigidity), two high (high motion precision and high transmission efficiency) and one small (small return difference), a cycloidal speed reducer adopting RV transmission has smaller volume and larger overload capacity than a speed reducer adopting simple cycloidal pin wheel planetary transmission, and the rigidity of an output shaft is large, so that the RV-vector transmission is widely regarded at home and abroad.
In recent years, with the development of heavy industrial equipment, it is difficult for a common speed reducer to meet the requirements of the heavy industrial equipment in terms of large torque, precision and output shaft rigidity, and therefore, it is necessary to design a hollow sealing type cycloidal speed reducer which is suitable for the heavy industrial equipment and has large torque, high precision and good rigidity.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: in order to overcome the problems, the hollow sealing type cycloidal speed reducer for the heavy industrial equipment has the advantages of large torque, high precision, good rigidity and the like, and effectively meets the operation requirements of the heavy industrial equipment.
The utility model provides a technical scheme that its technical problem adopted is: a hollow sealed cycloidal speed reducer for heavy industrial equipment comprises a needle shell, a rear planet carrier, three eccentric shafts, two cycloidal gears, a plurality of roller pins, a front planet carrier, an involute planetary gear, an involute sun gear, a column type taper pin, an involute input gear shaft, a first end cover, a second end cover and a transmission gear shaft, wherein the roller pins are uniformly arranged at the middle section of an inner cavity of the needle shell;
two ends of the three eccentric shafts are respectively and rotatably connected with the rear planet carrier and the front planet carrier through bearings; the two cycloid gears are arranged on the three eccentric shafts and are respectively meshed with the rolling needles;
a first end cover is fixed on an opening at one end of the needle shell, which is provided with the front planet carrier, through a bolt; the involute planetary gear is meshed with one end of each of the three eccentric shafts close to the first end cover; one end of the transmission gear shaft is fixed with the rear planet carrier through a bolt, a gear sleeve is fixedly sleeved in the middle section of the transmission gear shaft, an involute sun gear is fixed on the gear sleeve through a bolt, the gear sleeve is respectively meshed with the two involute planet gears, and the other end of the transmission gear shaft is rotatably connected with the first end cover through a bearing;
one end of the second end cover is clamped into the first end cover, and a sealing ring is arranged between the second end cover and the first end cover; the involute input gear shaft penetrates into the second end cover, a bearing and an oil seal are arranged between the second end cover and the involute input gear shaft, and the involute input gear shaft is meshed with the involute sun gear.
Furthermore, the transmission gear shaft and the involute input gear shaft have hollow structures.
Furthermore, an oil seal is arranged between the transmission gear shaft and the first end cover, and an oil seal is arranged between the needle shell and the rear planet carrier.
Furthermore, the number of teeth of the involute input gear shaft is 26, the modulus is 2, the pressure angle is 20 degrees, and the tooth width is 16mm.
Furthermore, the number of teeth of the involute constant-pitch planetary gear is 154, the modulus is 2, the pressure angle is 20 degrees, and the tooth width is 12mm; the gear sleeve has 78 teeth, a module of 2, a pressure angle of 20 degrees and a tooth width of 18mm.
Furthermore, the number of teeth of the involute planetary gear is 33, the modulus is 2, the pressure angle is 20 degrees, and the tooth width is 10mm.
Further, the eccentricity of the eccentric shaft is 2.2mm.
Further, the number of the cycloid gear teeth is 59.
Furthermore, the outer diameter of the roller pin is phi 8mm, and the length of the roller pin is 32mm.
Furthermore, the number of teeth of the needle shell is 60, the diameter of the central circle is phi 336mm, and the diameter of the needle teeth is phi 8mm.
The utility model has the advantages that: a kind of heavy industry apparatus uses the cycloidal reducer of the hollow closed type, the reducer shares the three-level speed reduction, the transmission is steady, the torque is big, the bearing capacity is strong, the cycloidal gear uses the single differential tooth structure, the engagement precision is superior to the engagement of two differential teeth, cycloidal gear, quill roller, needle shell all-tooth rolling friction contact, the rigidity is good, the single differential tooth engages and is apt to realize the high transmission chain error and return difference requirement, the rigidity is better, the tooth gap is smaller, can avoid the speed reducer from appearing shaking in the use, the too big situation of damping vibration; the front planet carrier and the rear planet carrier adopt a column type taper pin connecting structure, the planet carrier has the characteristics of simple structure, convenience in processing, high strength and the like, and meanwhile, the high-precision taper pin connecting structure can ensure the identity of processing and assembling.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic view of an overall cross-sectional structure of a hollow sealed cycloidal reducer for heavy industrial equipment according to the present invention;
fig. 2 is an exploded view of the hollow sealed cycloidal reducer for heavy industrial equipment according to the present invention.
The scores in the figures are as follows:
1. the planetary gear set comprises a needle shell, a rear planet carrier, a front eccentric shaft, a cycloidal gear, a roller pin, a front planet carrier, a planetary gear 7, an involute planet gear, an involute sun gear 8, an involute sun gear 9, a cylindrical taper pin, an involute input gear shaft 10, an involute input gear shaft 13, a first end cover, a second end cover, a transmission gear shaft 12, a transmission gear shaft 14 and a gear sleeve.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
A hollow sealed cycloidal reducer for heavy industrial equipment as shown in figures 1 and 2, which belongs to a three-stage closed planetary transmission mechanism with small tooth difference.
The utility model provides a heavy industry is cavity canned type cycloid speed reducer for equipment, includes needle shell 1, back planet carrier 2, three eccentric shafts 3, two cycloid wheels 4, a plurality of kingpins 5, preceding planet carrier 6, three planetary gear 7 that gradually bursts at seams, sun gear 8, the column type taper pin 9 that gradually bursts at seams, the input gear axle 10 that gradually bursts at seams, first end cover 13, second end cover 11, drive gear axle 12, the inner chamber middle section of needle shell 1 evenly is provided with kingpin 5, and the inner chamber both ends of needle shell 1 are provided with back planet carrier 2, preceding planet carrier 6 through the bearing rotation respectively, and back planet carrier 2, preceding planet carrier 6 fix a position and are fixed through column type taper pin 9.
Two ends of the three eccentric shafts 3 are respectively and rotatably connected with the rear planet carrier 2 and the front planet carrier 6 through bearings; the two cycloidal gears 4 are arranged on the three eccentric shafts 3, and the two cycloidal gears 4 are respectively meshed with the needle rollers 5.
A first end cover 13 is fixed on an opening at one end of the needle shell 1, which is provided with the front planet carrier 6, through a bolt; the involute planetary gear 7 is meshed with one end of each of the three eccentric shafts 3 close to the first end cover 13; one end of the transmission gear shaft 12 is fixed with the rear planet carrier 2 through a bolt, a gear sleeve 14 is fixedly sleeved on the middle section of the transmission gear shaft 12, an involute sun gear 8 is fixed on the gear sleeve 14 through a bolt, the gear sleeve 14 is meshed with two involute planetary gears 7 respectively, and the other end of the transmission gear shaft 12 is rotatably connected with a first end cover 13 through a bearing.
One end of the second end cover 11 is clamped into the first end cover 13, and a sealing ring is arranged between the second end cover 11 and the first end cover 13; the involute input gear shaft 10 penetrates into the second end cover 11, a bearing and an oil seal are arranged between the second end cover 11 and the involute input gear shaft 10, and the involute input gear shaft 10 is meshed with the involute sun gear 8.
The transmission gear shaft 12 and the involute input gear shaft 10 have hollow structures.
An oil seal is arranged between the transmission gear shaft 12 and the first end cover 13, and an oil seal is arranged between the needle shell 1 and the rear planet carrier 2.
The number of teeth of the involute input gear shaft 10 is 26, the modulus is 2, the pressure angle is 20 degrees, and the tooth width is 16mm.
The number of teeth of the involute sun gear 8 is 154, the modulus is 2, the pressure angle is 20 degrees, and the tooth width is 12mm; the gear sleeve 14 has 78 teeth, a module of 2, a pressure angle of 20 °, and a tooth width of 18mm.
The number of teeth of the involute planetary gear 7 is 33, the modulus is 2, the pressure angle is 20 degrees, and the tooth width is 10mm.
The eccentric shaft 3 has an eccentricity of 2.2mm.
The number of teeth of the cycloid wheel 4 is 59.
The outer diameter of the roller pin 5 is phi 8mm, and the length is 32mm.
The number of teeth of the needle shell 1 is 60, the diameter of the central circle is phi 336mm, and the diameter of the needle teeth is phi 8mm.
The utility model discloses a heavy industry is cavity canned type cycloid speed reducer for equipment, the speed reducer has three grades of speed reductions in total, the first grade is that the planetary mechanism that gradually bursts at the seams slows down, the second grade is that the planetary mechanism that gradually bursts at the seams slows down, the third grade is that cycloid pinwheel planetary reduction mechanism, tertiary reduction mechanism constitutes a planetary mechanism, the transmission is steady, the moment of torsion is big, bearing capacity is strong, the cycloid wheel uses single differential tooth structure, the meshing precision is superior to two differential tooth meshing, cycloid wheel, kingpin, the full-tooth rolling friction contact of needle shell, good rigidity, single differential tooth meshing is changeed and is realized high drive chain error and return difference requirement, better rigidity, the backlash is littleer, can avoid the speed reducer shake to appear in the use, the too big condition of damping vibrations; the front planet carrier and the rear planet carrier adopt a column type taper pin connecting structure, the planet carrier has the characteristics of simple structure, convenience in processing, high strength and the like, and meanwhile, the high-precision taper pin connecting structure can ensure the identity of processing and assembling.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A kind of heavy industrial equipment uses the cycloidal reducer of the hollow canned type, its characteristic is: the middle section of an inner cavity of the needle shell (1) is uniformly provided with the rolling needles (5), two ends of the inner cavity of the needle shell (1) are respectively provided with the rear planet carrier (2) and the front planet carrier (6) in a rotating way through bearings, and the rear planet carrier (2) and the front planet carrier (6) are positioned and fixed through the column type taper pins (9);
two ends of the three eccentric shafts (3) are respectively and rotatably connected with the rear planet carrier (2) and the front planet carrier (6) through bearings; the two cycloid gears (4) are arranged on the three eccentric shafts (3), and the two cycloid gears (4) are respectively meshed with the roller pins (5);
a first end cover (13) is fixed on an opening at one end of the needle shell (1) provided with the front planet carrier (6) through a bolt; the involute planetary gears (7) are meshed with one ends of the three eccentric shafts (3) close to the first end cover (13); one end of the transmission gear shaft (12) is fixed with the rear planet carrier (2) through a bolt, a gear sleeve (14) is fixedly sleeved at the middle section of the transmission gear shaft (12), an involute sun gear (8) is fixed on the gear sleeve (14) through a bolt, the gear sleeve (14) is respectively meshed with the two involute planet gears (7), and the other end of the transmission gear shaft (12) is rotatably connected with a first end cover (13) through a bearing;
one end of the second end cover (11) is clamped into the first end cover (13), and a sealing ring is arranged between the second end cover (11) and the first end cover (13); the involute input gear shaft (10) penetrates into the second end cover (11), a bearing and an oil seal are arranged between the second end cover (11) and the involute input gear shaft (10), and the involute input gear shaft (10) is meshed with the involute sun gear (8).
2. The hollow sealed cycloidal reducer for heavy industrial equipment according to claim 1, wherein: the transmission gear shaft (12) and the involute input gear shaft (10) have hollow structures.
3. The hollow sealed cycloidal reducer for heavy industrial equipment according to claim 1, wherein: an oil seal is arranged between the transmission gear shaft (12) and the first end cover (13), and an oil seal is arranged between the needle shell (1) and the rear planet carrier (2).
4. The hollow sealed cycloidal reducer for heavy industrial equipment according to claim 1, wherein: the involute input gear shaft (10) tooth number be 26, the modulus is 2, pressure angle be 20, the tooth width be 16mm.
5. The hollow sealed cycloidal reducer for heavy industrial equipment according to claim 1, wherein: the number of teeth of the involute sun gear (8) is 154, the modulus is 2, the pressure angle is 20 degrees, and the tooth width is 12mm; the gear sleeve (14) has 78 teeth, a module of 2, a pressure angle of 20 degrees and a tooth width of 18mm.
6. The hollow sealed type cycloidal reducer for heavy industrial equipment according to claim 1, wherein: the involute planetary gears (7) are 33 in tooth number, 2 in modulus, 20 in pressure angle and 10mm in tooth width.
7. The hollow sealed cycloidal reducer for heavy industrial equipment according to claim 1, wherein: the eccentric distance of the eccentric shaft (3) is 2.2mm.
8. The hollow sealed cycloidal reducer for heavy industrial equipment according to claim 1, wherein: the number of teeth of the cycloid wheel (4) is 59.
9. The hollow sealed cycloidal reducer for heavy industrial equipment according to claim 1, wherein: the outer diameter of the roller pin (5) is phi 8mm, and the length of the roller pin is 32mm.
10. The hollow sealed cycloidal reducer for heavy industrial equipment according to claim 1, wherein: the number of teeth of the needle shell (1) is 60, the diameter of a central circle is phi 336mm, and the diameter of the needle teeth is phi 8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223107257.6U CN218817899U (en) | 2022-11-22 | 2022-11-22 | Hollow sealed cycloidal speed reducer for heavy industrial equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223107257.6U CN218817899U (en) | 2022-11-22 | 2022-11-22 | Hollow sealed cycloidal speed reducer for heavy industrial equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218817899U true CN218817899U (en) | 2023-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223107257.6U Active CN218817899U (en) | 2022-11-22 | 2022-11-22 | Hollow sealed cycloidal speed reducer for heavy industrial equipment |
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| Country | Link |
|---|---|
| CN (1) | CN218817899U (en) |
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- 2022-11-22 CN CN202223107257.6U patent/CN218817899U/en active Active
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