CN221097401U - Three-stage parallel shaft type speed reducer with active lubrication structure - Google Patents
Three-stage parallel shaft type speed reducer with active lubrication structure Download PDFInfo
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- CN221097401U CN221097401U CN202322879158.8U CN202322879158U CN221097401U CN 221097401 U CN221097401 U CN 221097401U CN 202322879158 U CN202322879158 U CN 202322879158U CN 221097401 U CN221097401 U CN 221097401U
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- 238000005461 lubrication Methods 0.000 title claims abstract description 30
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 21
- 230000009467 reduction Effects 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000001050 lubricating effect Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 22
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005086 pumping Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 36
- 238000000034 method Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 239000010687 lubricating oil Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of speed reduction equipment, and particularly discloses a three-stage parallel shaft type speed reducer with an active lubrication structure, which comprises an input assembly, a primary gear assembly, a secondary gear assembly, a main speed reduction gear, a differential mechanism assembly and a lubrication structure; the lubricating structure comprises a driving unit, an oil drawing cylinder, a piston and a guide pipe; the secondary gear assembly is used for driving the driving unit to move, the piston is connected to one side of the oil drawing cylinder in a sealing sliding manner, an oil outlet is arranged on the other side of the oil drawing cylinder, and the guide pipe is connected with the oil outlet; the driving unit can drive the piston to reciprocate on one side of the oil drawing cylinder; an oil inlet is arranged on the oil drawing cylinder. The power source of the piston motion is derived from a secondary gear assembly meshed with the conjugate gear, and is not a small motor, so that the power assembly is reduced, and automatic lubrication is realized; the oil pump is not used for active lubrication, but is used for pumping the oil cylinder, and the oil pump is simpler in structure and low in manufacturing cost.
Description
Technical Field
The utility model belongs to the technical field of speed reduction equipment, and particularly relates to a three-stage parallel shaft type speed reducer with an active lubrication structure.
Background
With the development of new energy automobile industry, the requirements on the speed ratio of a speed reducer used by a new energy automobile are gradually increased, and the increased speed ratio can bring higher requirements on lubrication of gears and bearings; if the traditional two-stage parallel shaft type speed reducer needs to meet a large speed ratio, a larger center distance is needed, and the size of the speed reducer assembly is increased; and the rotation speed of the main reduction gear of the output shaft can be reduced along with the increase of the speed ratio, and the splash lubrication mode of the main reduction gear stirring oil cannot meet the requirements. And most of active lubrication mechanisms are transported by small motors or oil pumps, which can cause huge pressure on manufacturing cost, and have complex structure and are easy to damage.
Disclosure of utility model
The utility model aims to provide a three-stage parallel shaft type speed reducer with an active lubrication structure, which can realize active lubrication of gears without arranging an additional power source.
In order to achieve the above purpose, the technical scheme of the utility model is as follows: the three-stage parallel shaft type speed reducer with the active lubrication structure comprises an input assembly, a primary gear assembly, a secondary gear assembly, a main reduction gear, a differential mechanism assembly and a lubrication structure, wherein the input assembly is used for driving the primary gear assembly to rotate, the primary gear assembly is used for driving the secondary gear assembly to rotate, the secondary gear assembly is used for driving the main reduction gear to rotate, and the differential mechanism assembly is arranged at the center of the main reduction gear; the speed ratio between the input assembly and the primary gear assembly, the speed ratio between the primary gear assembly and the secondary gear assembly and the speed ratio between the secondary gear assembly and the main reduction gear are sequentially increased; the input assembly and the main reduction gear are respectively positioned at two sides of the primary gear assembly, and the secondary gear assembly is positioned below the primary gear assembly; the lubricating structure comprises a driving unit, an oil drawing cylinder, a piston and a guide pipe; the secondary gear assembly is used for driving the driving unit to move, the piston is connected to one side of the oil drawing cylinder in a sealing and sliding manner, an oil outlet is formed in the other side of the oil drawing cylinder, the guide pipe is connected with the oil outlet, and the outlet of the guide pipe is positioned above the primary gear assembly; the driving unit can drive the piston to reciprocate at one side of the oil drawing cylinder; an oil inlet is arranged on the oil drawing cylinder.
Further, the input assembly includes an input shaft and an input gear mounted on the input shaft; the primary gear assembly comprises a primary intermediate shaft and a primary gear, the primary gear is arranged on the primary intermediate shaft, and the primary gear is meshed with the input gear; the secondary gear assembly comprises a secondary intermediate shaft, a transmission gear and a secondary gear, wherein the transmission gear and the secondary gear are respectively installed on the secondary intermediate shaft, the transmission gear is meshed with the primary gear, and the secondary gear is meshed with the main reduction gear.
Further, the driving unit comprises a conjugate gear, a conjugate rotating shaft, a crank and a connecting rod, wherein the conjugate gear is arranged on the conjugate rotating shaft and is meshed with the transmission gear; one side of the crank is hinged with the end face of the conjugate gear, the other side of the crank is hinged with one side of the connecting rod, and the other side of the connecting rod is hinged with the piston.
Further, the conjugate gear is located between the transfer gear and the main reduction gear.
Further, bearings are arranged on two sides of the input shaft, the primary intermediate shaft, the secondary intermediate shaft and the conjugate rotating shaft, and are arranged in the speed reducer shell.
The working principle of the technical scheme is as follows: the input shaft rotates to drive the input gear to rotate, the input gear rotates to drive the primary gear to rotate, the primary gear rotates to drive the transmission gear to rotate, the transmission gear rotates to drive the secondary gear to rotate through the secondary intermediate shaft, the secondary gear drives the main reduction gear to rotate, the main reduction gear transmits torque to the outside of the speed reducer through the differential mechanism component, in the process, the speed ratio is sequentially increased, the torque is gradually reduced, the speed ratio is increased, the output torque is increased, and the center distance is reduced.
The transmission gear rotates to drive the conjugate gear to rotate, the conjugate gear drives the piston to move through the crank and the connecting rod, a cavity is formed in the oil drawing cylinder, and lubricating oil enters the oil drawing cylinder through the oil inlet to realize an oil drawing function. Under the action of the conjugate gear, the crank continues to rotate, the piston moves reversely under the action of the connecting rod, and after the piston surpasses the oil inlet, lubricating oil in the oil drawing cylinder can be extruded into the guide pipe and sprayed onto the end face of the gear through the guide pipe, so that the automatic lubrication function is realized.
The beneficial effects of this technical scheme lie in:
① In the technical scheme, the power source of the piston motion is derived from a transmission gear meshed with the conjugate gear, but not a small motor, so that a power assembly is reduced, and automatic lubrication is realized; the oil pump is not used for active lubrication, but is used for pumping the oil cylinder, and the oil pump is simpler in structure and low in manufacturing cost.
② According to the technical scheme, the positions of the input assembly, the primary gear assembly, the secondary gear assembly, the main reduction gear and the lubricating structure are arranged, so that the whole occupied space is reduced as much as possible under the condition of ensuring the speed ratio.
Drawings
FIG. 1 is a schematic diagram of a three-stage parallel shaft type speed reducer with an active lubrication structure according to the present utility model;
FIG. 2 is a schematic view of the lubrication structure of FIG. 1;
FIG. 3 is a schematic diagram of oil drawing of a lubrication structure;
fig. 4 is a schematic diagram of oil injection for a lubrication structure.
Detailed Description
The following is a further detailed description of the embodiments:
Reference numerals in the drawings of the specification include: input shaft 1, input gear 2, primary gear 3, primary jackshaft 4, secondary jackshaft 5, secondary gear 6, drive gear 7, main reduction gear 8, differential mechanism assembly 9, conjugate gear 10, crank 11, connecting rod 12, draw-in cylinder 13, pipe 14, piston 15, oil inlet 16, bearing 17.
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The embodiment is basically as shown in the accompanying figures 1-2: the three-stage parallel shaft type speed reducer with the active lubrication structure comprises an input assembly, a primary gear 3 assembly, a secondary gear 6 assembly, a main reduction gear 8, a differential mechanism assembly 9 and a lubrication structure, wherein the input assembly is used for driving the primary gear assembly to rotate, the primary gear assembly is used for driving the secondary gear assembly to rotate, the secondary gear assembly is used for driving the main reduction gear 8 to rotate, the differential mechanism assembly 9 is arranged at the center of the main reduction gear 8, the input assembly comprises an input shaft 1 and an input gear 2, and the input gear 2 is arranged on the input shaft 1; the primary gear assembly comprises a primary intermediate shaft 4 and a primary gear 3, the primary gear 3 is arranged on the primary intermediate shaft 4, and the primary gear 3 is meshed with the input gear 2; the secondary gear assembly comprises a secondary intermediate shaft 5, a transmission gear 7 and a secondary gear 6, wherein the transmission gear 7 and the secondary gear 6 are respectively arranged on the secondary intermediate shaft 5, the transmission gear 7 is meshed with the primary gear 3, and the secondary gear 6 is meshed with the main reduction gear 8. The speed ratio between the input assembly and the primary gear assembly, the speed ratio between the primary gear assembly and the secondary gear assembly, and the speed ratio between the secondary gear assembly and the main reduction gear 8 are sequentially increased; the input assembly and the main reduction gear 8 are respectively positioned at two sides of the primary gear assembly, and the secondary gear assembly is positioned below the primary gear assembly.
The lubrication structure comprises a driving unit, an oil drawing cylinder 13, a piston 15 and a conduit 14 (in particular a plastic tube); the secondary gear assembly, in particular the transmission gear 7, is used to drive the drive unit in motion. The piston 15 is connected to the right side of the oil drawing cylinder 13 in a sealing and sliding manner, an oil outlet is arranged on the left side of the oil drawing cylinder 13, the guide pipe 14 is connected with the oil outlet, and the outlet of the guide pipe 14 is positioned above the primary gear assembly; the driving unit can drive the piston 15 to reciprocate on the right side of the oil drawing cylinder 13; an oil inlet 16 is arranged on the oil drawing cylinder 13. The driving unit comprises a conjugate gear 10, a conjugate rotating shaft, a crank 11 and a connecting rod 12, wherein the conjugate gear 10 is arranged on the conjugate rotating shaft, and the conjugate gear 10 is positioned between the transmission gear 7 and the main reduction gear 8; the conjugate gear 10 is meshed with the transmission gear 7; the right side of the crank 11 is hinged to the end face of the conjugate gear 10 (optimally, an oval driving block is arranged on the conjugate gear 10, the center of the oval driving block coincides with the central axis of the conjugate rotating shaft, the crank 11 is hinged to the oval driving block), the left side is hinged to the right side of the connecting rod 12, and the left side of the connecting rod 12 is hinged to the piston 15.
Bearings 17 are arranged on two sides of the input shaft 1, the primary intermediate shaft 4, the secondary intermediate shaft 5 and the conjugate rotating shaft, and the bearings 17 are arranged in the reducer shell.
The specific implementation process is as follows:
the input shaft 1 rotates to drive the input gear 2 to rotate, the input gear 2 rotates to drive the primary gear 3 to rotate, the primary gear 3 rotates to drive the transmission gear 7 to rotate, the transmission gear 7 rotates to drive the secondary gear 6 to rotate through the secondary intermediate shaft 5, the secondary gear 6 drives the main reduction gear 8 to rotate, the main reduction gear 8 transmits torque to the outside of the speed reducer through the differential mechanism assembly 9, in the process, the speed ratio is sequentially increased, the torque is gradually reduced, the functions of increasing the speed ratio, increasing the output torque and reducing the center distance are realized.
The transmission gear 7 rotates to drive the conjugate gear 10 to rotate, the conjugate gear 10 drives the piston 15 to move rightwards through the crank 11 and the connecting rod 12, a cavity is formed in the oil drawing cylinder 13, and lubricating oil enters the oil drawing cylinder 13 through the oil inlet 16 to realize an oil drawing function, as shown in fig. 3. Under the action of the conjugate gear 10, the crank 11 continues to rotate, the piston 15 moves reversely under the action of the connecting rod 12, and after the piston 15 surpasses the oil inlet 16, the lubricating oil in the oil drawing cylinder 13 can be extruded into the guide pipe 14 and is sprayed onto the end face of the gear through the guide pipe 14, so that the automatic lubrication function is realized, as shown in fig. 4.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The foregoing is merely an embodiment of the present utility model, and a specific structure and characteristics of common knowledge in the art, which are well known in the scheme, are not described herein, so that a person of ordinary skill in the art knows all the prior art in the application date or before the priority date, can know all the prior art in the field, and has the capability of applying the conventional experimental means before the date, and a person of ordinary skill in the art can complete and implement the present embodiment in combination with his own capability in the light of the present utility model, and some typical known structures or known methods should not be an obstacle for a person of ordinary skill in the art to implement the present utility model. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (5)
1. A three-stage parallel shaft type speed reducer with an active lubrication structure is characterized in that: the novel differential mechanism comprises an input assembly, a primary gear assembly, a secondary gear assembly, a main reduction gear (8), a differential mechanism assembly (9) and a lubricating structure, wherein the input assembly is used for driving the primary gear assembly to rotate, the primary gear assembly is used for driving the secondary gear assembly to rotate, the secondary gear assembly is used for driving the main reduction gear (8) to rotate, and the differential mechanism assembly (9) is arranged at the center of the main reduction gear (8); the speed ratio between the input assembly and the primary gear assembly, the speed ratio between the primary gear assembly and the secondary gear assembly and the speed ratio between the secondary gear assembly and the main reduction gear (8) are sequentially increased; the input assembly and the main reduction gear (8) are respectively positioned at two sides of the primary gear assembly, and the secondary gear assembly is positioned below the primary gear assembly; the lubricating structure comprises a driving unit, an oil drawing cylinder (13), a piston (15) and a guide pipe (14); the secondary gear assembly is used for driving the driving unit to move, the piston (15) is connected to one side of the oil drawing cylinder (13) in a sealing sliding manner, an oil outlet is formed in the other side of the oil drawing cylinder (13), the guide pipe (14) is connected with the oil outlet, and the outlet of the guide pipe (14) is positioned above the primary gear assembly; the driving unit can drive the piston (15) to reciprocate on one side of the oil drawing cylinder (13); an oil inlet (16) is arranged on the oil drawing cylinder (13).
2. The three-stage parallel shaft type speed reducer with an active lubrication structure according to claim 1, wherein: the input assembly comprises an input shaft (1) and an input gear (2), wherein the input gear (2) is arranged on the input shaft (1); the primary gear assembly comprises a primary intermediate shaft (4) and a primary gear (3), the primary gear (3) is arranged on the primary intermediate shaft (4), and the primary gear (3) is meshed with the input gear (2); the secondary gear assembly comprises a secondary intermediate shaft (5), a transmission gear (7) and a secondary gear (6), wherein the transmission gear (7) and the secondary gear (6) are respectively arranged on the secondary intermediate shaft (5), the transmission gear (7) is meshed with the primary gear (3), and the secondary gear (6) is meshed with the main reduction gear (8).
3. The three-stage parallel shaft type speed reducer with an active lubrication structure according to claim 2, wherein: the driving unit comprises a conjugate gear (10), a conjugate rotating shaft, a crank (11) and a connecting rod (12), wherein the conjugate gear (10) is arranged on the conjugate rotating shaft, and the conjugate gear (10) is meshed with the transmission gear (7); one side of the crank (11) is hinged with the end face of the conjugate gear (10), the other side of the crank is hinged with one side of the connecting rod (12), and the other side of the connecting rod (12) is hinged with the piston (15).
4. A three-stage parallel shaft type speed reducer with an active lubrication structure according to claim 3, wherein: the conjugate gear (10) is located between the transmission gear (7) and the main reduction gear (8).
5. A three-stage parallel shaft type speed reducer with an active lubrication structure according to claim 3, wherein: the two sides of the input shaft (1), the primary intermediate shaft (4), the secondary intermediate shaft (5) and the conjugate rotating shaft are respectively provided with a bearing (17), and the bearings (17) are arranged in the reducer shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322879158.8U CN221097401U (en) | 2023-10-26 | 2023-10-26 | Three-stage parallel shaft type speed reducer with active lubrication structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322879158.8U CN221097401U (en) | 2023-10-26 | 2023-10-26 | Three-stage parallel shaft type speed reducer with active lubrication structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221097401U true CN221097401U (en) | 2024-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322879158.8U Active CN221097401U (en) | 2023-10-26 | 2023-10-26 | Three-stage parallel shaft type speed reducer with active lubrication structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221097401U (en) |
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2023
- 2023-10-26 CN CN202322879158.8U patent/CN221097401U/en active Active
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| GR01 | Patent grant |