CN211731038U - Transmission device of power system assembly - Google Patents
Transmission device of power system assembly Download PDFInfo
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- CN211731038U CN211731038U CN202020276186.4U CN202020276186U CN211731038U CN 211731038 U CN211731038 U CN 211731038U CN 202020276186 U CN202020276186 U CN 202020276186U CN 211731038 U CN211731038 U CN 211731038U
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Abstract
The utility model provides a transmission of driving system assembly belongs to driving system technical field. The transmission structure of the existing power system assembly is complex, the transmission speed reduction effect is limited, noise exists during transmission, and the transmission performance is not stable enough. The transmission device of the power system assembly is characterized in that a first transmission helical gear and a second transmission helical gear externally tangent to the first transmission helical gear are arranged in a cavity, the first transmission helical gear and the second transmission helical gear are in opposite meshing transmission to form primary speed reduction transmission, a transmission shaft which is arranged in the same axial direction as the second transmission helical gear is fixedly arranged on the second transmission helical gear, the other end of the transmission shaft penetrates through the cavity and extends to the outside of the cavity, a first chain wheel is fixedly arranged on the driving wheel in the same axial direction, and the first chain wheel and the second chain wheel form secondary speed reduction transmission through chain transmission. The utility model discloses transmission speed reduction effect is better, installation space is reasonable, and transmission performance is comparatively stable, long service life, manufacturing cost is lower.
Description
Technical Field
The utility model belongs to the technical field of driving system, a transmission of driving system assembly is related to.
Background
The motor and the rear driving wheel of most of the existing motor vehicles are in transmission connection through a chain, and the motor and the rear driving wheel are connected through a speed reduction transmission device.
Compared with the traditional front-mounted driving mode and the traditional rear-mounted driving mode, the middle-mounted motor is more and more widely applied by the advantages of low magnetic resistance, labor saving in pushing, small size, light weight, large torque, suitability for climbing, convenience in installation and maintenance and the like.
The motor transmission system is limited to the design of a transmission system structure of the middle-placed motor, the middle-placed motor does not fully exert excellent performance, and meanwhile, the motor transmission system is limited to the design of the structure, and the whole transmission system is not convenient to disassemble and assemble. In view of the above situation, an electric bicycle appears in the existing market, for example, chinese patent nos.: 201510151354.0A middle motor installation mechanism of an electric bicycle comprises a hoisting frame and a driving machine, wherein the rear end of the hoisting frame is fixedly connected to the end part of a bottom fork of the electric bicycle, and the front end of the hoisting frame is provided with a notch for fixedly connecting a middle shaft sleeve; the driving machine comprises a middle motor and a tensioning frame with a tensioning wheel, the middle motor is mounted on the hoisting frame, and the tensioning frame is fixedly connected to the edge of the middle motor; and a middle shaft with a wheel disc is arranged on the middle shaft sleeve.
In the structure, the transmission structure is complex, the transmission speed reduction effect is limited, noise exists during transmission, and the transmission performance is not stable enough.
Disclosure of Invention
The utility model aims at the above-mentioned problem that exists among the prior art, provide a simple structure, transmission speed reduction effect better, installation space is reasonable, the transmission of the comparatively stable driving system assembly of transmission performance.
The purpose of the utility model can be realized by the following technical proposal: a transmission device of a power system assembly comprises a motor and a driving wheel, wherein one end of the motor is fixedly provided with a transmission chamber, the transmission chamber comprises a cavity and a cavity cover, the cavity cover is matched with the cavity in size and shape, and the cavity cover is detachably and fixedly connected with the cavity. The first chain wheel and the second chain wheel form two-stage speed reduction transmission through chain transmission.
The transmission device of the power system assembly is provided with the first-stage speed reduction transmission and the second-stage speed reduction transmission, the speed reduction transmission performance is greatly optimized, the torque is large and more suitable for climbing, and the installation space is relatively reasonable, so that the transmission performance is relatively stable.
In the transmission device of the power system assembly, the cavity is internally provided with a first circular mounting groove and a second circular mounting groove, the first transmission helical gear is positioned in the first circular mounting groove, the second transmission helical gear is positioned in the second circular mounting groove, the diameter of the first circular mounting groove is smaller than that of the second circular mounting groove, and the first circular mounting groove and the second circular mounting groove are connected to form a gourd shape. The purpose that sets up like this makes transmission helical gear one, transmission helical gear two relative mounting structure comparatively stable, and installation back mechanical strength is higher, long service life.
In the transmission device of the power system assembly, the second transmission bevel gear and the transmission shaft are connected into a whole, a circular mounting position is arranged on the inner wall of the cavity cover, and one end of the transmission shaft is located in the circular mounting position and is in running fit with the circular mounting position. The purpose of this is: the transmission shaft can be effectively prevented from rotating and shaking, and the transmission shaft is stable in rotation.
In the transmission device of the power system assembly, a first rotating bearing is axially arranged on the circular mounting position in a penetrating manner, one end of the transmission shaft axially penetrates through the first rotating bearing, and one end of the transmission shaft is in rotating fit with the circular mounting position through the first rotating bearing. An outer ring of the first rotating bearing is in interference fit with the circular mounting position, and an inner ring of the first rotating bearing is matched with one end of the transmission shaft.
In the transmission device of the power system assembly, a second rotary bearing is fixedly arranged on the bottom shell of the cavity, and the other end of the transmission shaft penetrates through the second rotary bearing and extends out of the cavity. The outer ring of the second rotating bearing is in interference fit with the bottom shell of the cavity, and the inner ring of the second rotating bearing is matched with the transmission shaft.
In the above transmission device of the powertrain assembly, a diameter of the first transmission helical gear is smaller than a diameter of the second transmission helical gear, a diameter of the first sprocket is smaller than a diameter of the second sprocket, and a diameter of the first sprocket is smaller than a diameter of the first transmission helical gear.
In the transmission device of the power system assembly, the edge of the cavity is provided with the connecting positions at intervals along the circumferential direction of the cavity, the edge of the cavity cover is provided with the connecting holes at intervals along the circumferential direction of the cavity cover, and the cavity cover penetrates through the connecting holes and the connecting positions through bolts to detachably and fixedly connect the cavity cover and the cavity. The purpose of this setting is to facilitate chamber lid, cavity assembly connection.
Compared with the prior art, the transmission device of the power system assembly has the advantages that: the structure design is reasonable and simple, the transmission speed reduction effect is good, the installation space is reasonable, the transmission performance is stable, the transmission noise is low, the service life is long, and the manufacturing cost is low.
Drawings
Fig. 1 is a schematic perspective view of a transmission device of the power system assembly.
Fig. 2 is a schematic perspective view of the transmission device of the power system assembly.
FIG. 3 is a schematic cross-sectional view of the transmission of the present powertrain assembly.
In the figure, 1, a motor; 2. a drive wheel; 3. a cavity; 4. a chamber cover; 5. a first transmission bevel gear; 6. a second transmission bevel gear; 7. a drive shaft; 8. a chain wheel I; 9. a second chain wheel; 10. rotating the first bearing; 11. rotating a second bearing; 12. a connection bit; 13. and connecting the holes.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1, 2 and 3, the transmission device of the power system assembly mainly comprises a motor 1 and a driving wheel 2, wherein one end of the motor 1 is fixedly provided with a transmission chamber, the transmission chamber comprises a chamber 3 and a chamber cover 4 with a size and a shape matched with those of the chamber 3, the chamber cover 4 is detachably and fixedly connected with the chamber 3, a transmission bevel gear I5 and a transmission bevel gear II 6 externally tangent to the transmission bevel gear I5 are arranged in the chamber 3, the transmission bevel gear I5 and the transmission bevel gear II 6 are relatively engaged and transmitted to form a first-stage speed reduction transmission, a main shaft of the motor 1 extends into the chamber 3 and is fixedly connected with the transmission bevel gear I5 in the same axial direction, a transmission shaft 7 arranged in the same axial direction as the transmission bevel gear II 6 is fixedly arranged on the transmission bevel gear II 6, one end of the transmission shaft 7 is arranged in the chamber 3, the other end of the transmission shaft 7 extends to the outside of the chamber 3 through the chamber, the first chain wheel 8 and the second chain wheel 9 form two-stage speed reduction transmission through chain transmission.
During actual manufacturing, a first circular mounting groove and a second circular mounting groove are formed in the cavity 3, the first transmission helical gear 5 is located in the first circular mounting groove, the second transmission helical gear 6 is located in the second circular mounting groove, the diameter of the first circular mounting groove is smaller than that of the second circular mounting groove, and the first circular mounting groove and the second circular mounting groove are connected to form a gourd shape.
In practical design, the cooperation of the transmission shaft 7 and the cavity cover 4 is as follows: the second transmission bevel gear 6 is connected with the transmission shaft 7 to form an integral structure, a circular installation position is arranged on the inner wall of the cavity cover 4, and one end of the transmission shaft 7 is located in the circular installation position and is in rotating fit with the circular installation position; specifically speaking: a first rotating bearing 10 is axially arranged on the circular installation position in a penetrating manner, one end of the transmission shaft 7 is axially arranged in the first rotating bearing 10 in a penetrating manner, and one end of the transmission shaft 7 is in rotating fit with the circular installation position through the first rotating bearing 10; and a second rotating bearing 11 is fixedly arranged on the bottom shell of the cavity 3, and the other end of the transmission shaft 7 penetrates through the second rotating bearing 11 and extends out of the cavity 3.
In actual manufacturing, the diameter of the first transmission bevel gear 5 is smaller than that of the second transmission bevel gear 6, the diameter of the first chain wheel 8 is smaller than that of the second chain wheel 9, and the diameter of the first chain wheel 8 is smaller than that of the first transmission bevel gear 5.
In actual manufacturing, the specific connection mode of the cavity 3 and the cavity cover 4 is as follows: connecting positions 12 are distributed at the edge of the cavity 3 at intervals along the circumferential direction of the cavity 3, connecting holes 13 are distributed at the edge of the cavity cover 4 at intervals along the circumferential direction of the cavity cover 4, and the cavity cover 4 penetrates through the connecting holes 13 and the connecting positions 12 through bolts to detachably and fixedly connect the cavity cover 4 and the cavity 3.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the motor 1 is used more herein; a drive wheel 2; a cavity 3; a chamber cover 4; a first transmission bevel gear 5; a second transmission bevel gear 6; a transmission shaft 7; a first chain wheel 8; a second chain wheel 9; a first rotating bearing 10; a second rotating bearing 11; a connection bit 12; connecting the holes 13, etc., without excluding the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (7)
1. A transmission device of a power system assembly comprises a motor (1) and a driving wheel (2), wherein one end of the motor (1) is fixedly provided with a transmission chamber, the transmission chamber comprises a cavity (3) and a cavity cover (4) matched with the cavity (3) in size and shape, the cavity cover (4) and the cavity (3) are detachably and fixedly connected, and the transmission device is characterized in that a first transmission helical gear (5) and a second transmission helical gear (6) externally tangent to the first transmission helical gear (5) are arranged in the cavity (3), the first transmission helical gear (5) and the second transmission helical gear (6) are relatively engaged and transmitted to form primary speed reduction transmission, a main shaft of the motor (1) extends into the cavity (3) and is fixedly connected with the first transmission helical gear (5) in the same axial direction, and a transmission shaft (7) arranged in the same axial direction as the second transmission helical gear (6) is fixedly arranged on the second transmission helical gear (6), one end of the transmission shaft (7) is arranged in the cavity (3), the other end of the transmission shaft (7) penetrates through the cavity (3) and extends to the outside of the cavity (3) to be fixedly provided with a first chain wheel (8), the driving wheel (2) is fixedly provided with a second chain wheel (9) in the same axial direction, and the first chain wheel (8) and the second chain wheel (9) form secondary speed reduction transmission through chain transmission.
2. The transmission device of the power system assembly as claimed in claim 1, wherein the cavity (3) is provided with a first circular mounting groove and a second circular mounting groove, the first transmission bevel gear (5) is positioned in the first circular mounting groove, the second transmission bevel gear (6) is positioned in the second circular mounting groove, the diameter of the first circular mounting groove is smaller than that of the second circular mounting groove, and the first circular mounting groove and the second circular mounting groove are connected to form a gourd shape.
3. The transmission device of the power system assembly according to claim 2, wherein the second transmission bevel gear (6) and the transmission shaft (7) are connected into a whole, a circular mounting position is arranged on the inner wall of the cavity cover (4), and one end of the transmission shaft (7) is positioned in the circular mounting position and is in rotating fit with the circular mounting position.
4. A transmission device for a powertrain assembly according to claim 3, wherein the circular mounting portion is provided with a first rotary bearing (10) axially therethrough, one end of the transmission shaft (7) is axially disposed through the first rotary bearing (10) and one end of the transmission shaft (7) is rotatably engaged with the circular mounting portion through the first rotary bearing (10).
5. The transmission device of the power system assembly according to claim 4, wherein a second rotary bearing (11) is fixedly arranged on a bottom shell of the cavity (3), and the other end of the transmission shaft (7) passes through the second rotary bearing (11) and extends out of the cavity (3).
6. The transmission of claim 1, 2, 3, 4 or 5, wherein the diameter of the first transmission bevel gear (5) is smaller than the diameter of the second transmission bevel gear (6), the diameter of the first chain wheel (8) is smaller than the diameter of the second chain wheel (9), and the diameter of the first chain wheel (8) is smaller than the diameter of the first transmission bevel gear (5).
7. The transmission device of the power system assembly according to claim 6, wherein the edge of the cavity (3) is provided with connecting positions (12) at intervals along the circumferential direction of the cavity (3), the edge of the cavity cover (4) is provided with connecting holes (13) at intervals along the circumferential direction of the cavity cover (4), and the cavity cover (4) passes through the connecting holes (13) and the connecting positions (12) through bolts to detachably and fixedly connect the cavity cover (4) and the cavity (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020276186.4U CN211731038U (en) | 2020-03-07 | 2020-03-07 | Transmission device of power system assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020276186.4U CN211731038U (en) | 2020-03-07 | 2020-03-07 | Transmission device of power system assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211731038U true CN211731038U (en) | 2020-10-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020276186.4U Active CN211731038U (en) | 2020-03-07 | 2020-03-07 | Transmission device of power system assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211731038U (en) |
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2020
- 2020-03-07 CN CN202020276186.4U patent/CN211731038U/en active Active
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