CN215567807U - Speed reduction integrated middle electric friction motor - Google Patents
Speed reduction integrated middle electric friction motor Download PDFInfo
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- CN215567807U CN215567807U CN202122113677.4U CN202122113677U CN215567807U CN 215567807 U CN215567807 U CN 215567807U CN 202122113677 U CN202122113677 U CN 202122113677U CN 215567807 U CN215567807 U CN 215567807U
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Abstract
The utility model discloses a speed-reducing integrated middle-mounted electric friction motor which comprises a motor chamber, wherein the motor chamber comprises a shell and a motor end cover arranged on one side of the shell, a connecting end cover is arranged on the other side of the shell, a speed-reducing end cover is arranged on one side of the connecting end cover, which is far away from the motor end cover, a speed-reducing chamber is arranged between the speed-reducing end cover and the connecting end cover, a first shaft penetrating through the connecting end cover is arranged in the center of the motor chamber, first bearing seats are arranged on the inner walls of the motor end cover and the speed-reducing end cover, first bearings are arranged at two ends of the first shaft, a second shaft parallel to the first shaft is arranged in the speed-reducing chamber, two second bearing seats are symmetrically arranged on the connecting end cover and the speed-reducing end cover which are positioned in the speed-reducing chamber, a third bearing is arranged in each second bearing seat, and an exhaust device is also arranged on the speed-reducing end cover. The utility model has the advantages of optimized structure, compact design, more stable power output and long service life, and can meet the requirements of small and medium-sized high-speed electric motorcycle installation space.
Description
Technical Field
The utility model belongs to the technical field of motor equipment, and particularly relates to a speed-reducing integrated middle-mounted electric friction motor.
Background
The fast motor is an integrated body of a speed reducer and a motor (motor). Such an integrated body may also be generally referred to as a gear motor or gearmotor. Generally, a professional reducer production plant is integrated and assembled, and then the reducer and a motor are supplied in a set.
In recent years, electric bicycles and electric motorcycles are more and more favored by people, the riding experience requirements of the electric bicycles and the electric motorcycles are higher and higher, and the publication number CN211266673U discloses an intelligent middle-mounted harmonic speed reduction motor, which comprises a motor, a harmonic speed reducer connected with the motor, and a middle shaft torque sensor, wherein the middle shaft torque sensor is arranged in the harmonic speed reducer in a penetrating manner, the axial lead of the harmonic speed reducer is perpendicular to the middle shaft of the middle shaft torque sensor, and the harmonic speed reducer transmits power to a torque sleeve and a chain wheel of the middle shaft torque sensor through a first bevel gear. The utility model uses the harmonic reducer to reduce the speed, the reduction ratio of the motor is large, the volume of the motor is small, and the integration with the whole vehicle is good; the utility model has simple and exquisite structure, accurately controls the starting and the closing of the motor and has obvious power-assisted effect; the stability of complete machine cooperation structure is high, and the consumption is little.
But it is very inconvenient to install it with the car body, and the output stability is poor, and the noise is big, and the high strength is easy to cause the sudden reduction of life when continuously outputting.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model provides a speed-reducing integrated middle-mounted electric friction motor which has the advantages of optimized structure, compact design, low operation noise, more stable power output and long service life and meets the requirement of a small and medium-sized high-speed electric friction installation space.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a speed reduction integrated centrally-mounted electric friction motor comprises a motor chamber, wherein the motor chamber comprises a shell and a motor end cover arranged on one side of the shell, a connecting end cover is arranged on the other side of the shell, a speed reduction end cover is arranged on one side, far away from the motor end cover, of the connecting end cover, and a speed reduction chamber is arranged between the speed reduction end cover and the connecting end cover;
a first shaft penetrating and connecting the end covers is arranged at the center of the motor chamber, first bearing seats used for mounting the first shaft are arranged on the inner walls of the motor end cover and the speed reduction end cover, and first bearings connected with the first bearing seats are arranged at two ends of the first shaft;
the connecting end cover is also provided with a second bearing for mounting the first shaft;
a second shaft parallel to the first shaft is arranged in the speed reducing chamber;
a first gear and a second gear which are meshed with each other are arranged in the reduction chamber, the first gear is coaxially and fixedly connected with the shaft II, and the second gear is coaxially and fixedly connected with the shaft II;
and two second bearing seats used for mounting the shaft II are symmetrically arranged on the connecting end cover and the decelerating end cover in the decelerating chamber, a third bearing connected with the shaft II is uniformly arranged in each second bearing seat, and an exhaust device communicated with the decelerating chamber is further arranged on the decelerating end cover.
Preferably, the first shaft is machined by integral forging.
Preferably, the second shaft is an output shaft, and a smooth hole expansion sleeve or spline output transmission is additionally arranged according to installation requirements.
Preferably, the first gear is smaller than the second gear, and both the first gear and the second gear adopt a gear grinding process.
Preferably, hoisting holes for installation are uniformly formed in the motor end cover and the connecting end cover, and buffer sleeves for shock absorption are arranged in the hoisting holes.
Preferably, the motor end cover, the connecting end cover and the speed reducing end cover are integrally cast and formed, and the speed reducing end cover and the connecting end cover are assembled by adopting a one-time clamping process.
Preferably, the exhaust device comprises an exhaust cap, a baffle is arranged at the communication position of the exhaust cap and the speed reduction chamber, a T-shaped air duct is arranged in the exhaust cap, and the air inlet end of the T-shaped air duct is arranged in an S shape.
Compared with the prior art, the utility model has the beneficial effects that:
(1) the hoisting holes are arranged, so that the hoisting holes are convenient to mount with a vehicle, and the buffer sleeves are arranged in the mounting holes, so that the influence of the whole vehicle vibration on the motor when the motor runs at a high speed is reduced; the motor end cover, the connecting end cover and the speed reducing end cover are integrally cast and formed, and the speed reducing end cover and the connecting end cover are assembled by adopting a one-step clamping process, so that the mounting precision of a product is ensured, and the structure is compact; the first gear and the second gear both adopt a gear grinding process, the high-speed running noise is reduced, and the output shaft is designed to be in a universal state of smooth hole expansion sleeve and spline link, so that the mounting of different chain wheels (or synchronous belt wheels) is met;
(2) through arranging exhaust apparatus to arrange the baffle in the intercommunication department of exhaust cap and speed reduction chamber, can effectively block the gear oil that the gear splashes, arrange T type air vent in the exhaust cap, and arrange the S-shaped at the inlet end of T type air vent, further avoid leaking of gear oil, the gas that the internal and external pressure differential produced can be released at any time, ensure that each part operates stably, improve its life.
Drawings
FIG. 1 is a schematic structural view (cross-sectional view) of the present invention;
fig. 2 is an enlarged view of a portion a in fig. 1.
Description of reference numerals:
1-motor chamber, 2-shell, 3-motor end cover, 4-connecting end cover, 5-speed reducing end cover, 6-speed reducing chamber, 7-first shaft, 8-first bearing seat, 9-first bearing, 10-stator, 11-rotor, 12-second bearing, 13-second shaft, 14-first gear, 15-second gear, 16-second bearing seat, 17-third bearing, 18-hoisting hole, 19-buffer sleeve, 20-exhaust cap, 21-baffle and 22-T-shaped air duct.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and fig. 2, the speed-reducing integrated centrally-mounted electric friction motor provided in this embodiment includes a motor chamber 1, where the motor chamber 1 includes a casing 2 and a motor end cover 3 disposed on one side of the casing 2, a connecting end cover 4 is disposed on the other side of the casing 2, a speed-reducing end cover 5 is disposed on one side of the connecting end cover 4 away from the motor end cover 3, and a speed-reducing chamber 6 is disposed between the speed-reducing end cover 5 and the connecting end cover 4; particularly, the equipartition has been put the hole for hoist 18 that is used for the installation on motor end cover 3 and the connection end cover 4, very convenient when with the automobile body installation, be provided with in the hole for hoist 18 and be used for absorbing cushion collar 19, the vibrations that produce when reducing whole car driving are to the motor influence under the high-speed running state particularly, motor end cover 3, connection end cover 4 and speed reduction end cover 5 all adopt integrative casting shaping, adopt integrative casting structure, and the assembly precision is higher, speed reduction end cover 5 and connection end cover 4 adopt a clamping technology assembly, further improve the assembly precision of product.
A first shaft 7 penetrating through the end cover 4 is arranged at the center of the motor chamber 1, first bearing seats 8 used for mounting the first shaft 7 are arranged on the inner walls of the motor end cover 3 and the speed reduction end cover 5, first bearings 9 connected with the first bearing seats 8 are arranged at two ends of the first shaft 7, a circle of stator 10 is arranged on the inner wall of the shell 2, and a rotor 11 is arranged around the first shaft 7 in the motor chamber 1;
the connecting end cover 4 is also provided with a second bearing 12 for mounting the first shaft 7;
a second shaft 13 parallel to the first shaft 7 is arranged in the speed reducing chamber 6;
specifically, the first shaft 7 is integrally forged and formed, so that a large torque is provided for the output of the motor, and the stability of power transmission is improved.
Particularly, the second shaft 13 is an output shaft, and is additionally provided with a smooth hole expansion sleeve or spline output transmission according to installation requirements, so that the installation of different chain wheels (or synchronous belt wheels) is met.
A first gear 14 and a second gear 15 which are meshed with each other are arranged in the speed reducing chamber 6, the first gear 14 is coaxially and fixedly connected with the first shaft 7, the second gear 15 is coaxially and fixedly connected with the second shaft 13, specifically, the first gear 14 is smaller than the second gear 15, and the first gear 14 and the second gear 15 both adopt a gear grinding process, so that the noise of high-speed operation is greatly reduced;
two second bearing blocks 16 used for mounting a second shaft 13 are symmetrically arranged on the connecting end cover 4 and the decelerating end cover 5 in the decelerating chamber 6, a third bearing 17 connected with the second shaft 13 is uniformly arranged in each second bearing block 16, second bearings 17 are uniformly arranged at two ends of the second shaft 13, the running stability and smoothness of the second shaft are improved, and an exhaust device communicated with the decelerating chamber 6 is further arranged on the decelerating end cover 5.
Specifically, the exhaust device comprises an exhaust cap 20, a baffle 21 is arranged at the communication position of the exhaust cap 20 and the reduction chamber 6, gear oil splashed by gears can be effectively blocked, a T-shaped air duct 22 is arranged in the exhaust cap 20, and the air inlet end of the T-shaped air duct 22 is arranged in an S shape, so that the gear oil is further prevented from leaking.
During assembly, a first bearing seat 8 is arranged on a motor end cover 3, a second bearing 12 and a second bearing seat 16 are arranged on a connecting end cover 4, a second bearing seat 16 is arranged on a speed reducing end cover 5, a second gear 15 is arranged on a second shaft 13, the second shaft 13 is arranged in the second bearing seat 16 through a third bearing, a first shaft 7 is arranged on the second bearing 12, a first gear 14 meshed with the second gear 15 is arranged at the shorter end of the first shaft 7, then the speed reducing end cover 5 and the connecting end cover 4 are clamped at one time, a rotor 11 assembly is assembled outside the longer section of the first shaft 7, a stator 10 assembly is arranged in a shell 2, then the first shaft 7 and the motor end cover 3 are assembled through a first bearing 9, and the shell 2, the motor end cover 3 and the connecting end cover 4 are assembled.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. A speed reduction integrated centrally-mounted electric friction motor comprises a motor chamber and is characterized in that the motor chamber comprises a shell and a motor end cover arranged on one side of the shell, a connecting end cover is arranged on the other side of the shell, a speed reduction end cover is arranged on one side, far away from the motor end cover, of the connecting end cover, and a speed reduction chamber is arranged between the speed reduction end cover and the connecting end cover;
a first shaft penetrating and connecting the end covers is arranged at the center of the motor chamber, first bearing seats used for mounting the first shaft are arranged on the inner walls of the motor end cover and the speed reduction end cover, and first bearings connected with the first bearing seats are arranged at two ends of the first shaft;
the connecting end cover is also provided with a second bearing for mounting the first shaft;
a second shaft parallel to the first shaft is arranged in the speed reducing chamber;
a first gear and a second gear which are meshed with each other are arranged in the reduction chamber, the first gear is coaxially and fixedly connected with the shaft II, and the second gear is coaxially and fixedly connected with the shaft II;
and two second bearing seats used for mounting the shaft II are symmetrically arranged on the connecting end cover and the decelerating end cover in the decelerating chamber, a third bearing connected with the shaft II is uniformly arranged in each second bearing seat, and an exhaust device communicated with the decelerating chamber is further arranged on the decelerating end cover.
2. The internally-mounted electric friction motor with integrated speed reduction of claim 1, wherein the shaft is integrally forged and formed.
3. The centrally-mounted electric friction motor with integrated speed reduction according to claim 1, wherein the second shaft is an output shaft, and a smooth hole expansion sleeve or spline output transmission is additionally arranged according to installation requirements.
4. The centrally-mounted electric friction motor with integrated speed reduction according to claim 1, wherein the first gear is smaller than the second gear, and the first gear and the second gear both adopt a gear grinding process.
5. The centrally-mounted electric friction motor integrating speed reduction according to claim 1, wherein hoisting holes for installation are formed in the motor end cover and the connecting end cover, and buffer sleeves for shock absorption are arranged in the hoisting holes.
6. The speed-reducing integrated centrally-mounted electric friction motor according to claim 1, wherein the motor end cover, the connecting end cover and the speed-reducing end cover are integrally cast and formed, and the speed-reducing end cover and the connecting end cover are assembled by a one-time clamping process.
7. The centrally-mounted electric friction motor with integrated speed reduction according to claim 1, wherein the exhaust device comprises an exhaust cap, a baffle is arranged at the communication position of the exhaust cap and the speed reduction chamber, a T-shaped air duct is arranged in the exhaust cap, and the air inlet end of the T-shaped air duct is arranged in an S shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122113677.4U CN215567807U (en) | 2021-09-02 | 2021-09-02 | Speed reduction integrated middle electric friction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122113677.4U CN215567807U (en) | 2021-09-02 | 2021-09-02 | Speed reduction integrated middle electric friction motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215567807U true CN215567807U (en) | 2022-01-18 |
Family
ID=79846490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122113677.4U Active CN215567807U (en) | 2021-09-02 | 2021-09-02 | Speed reduction integrated middle electric friction motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215567807U (en) |
-
2021
- 2021-09-02 CN CN202122113677.4U patent/CN215567807U/en active Active
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