CN212297513U - Motor and speed reducer assembly - Google Patents
Motor and speed reducer assembly Download PDFInfo
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- CN212297513U CN212297513U CN202022110671.7U CN202022110671U CN212297513U CN 212297513 U CN212297513 U CN 212297513U CN 202022110671 U CN202022110671 U CN 202022110671U CN 212297513 U CN212297513 U CN 212297513U
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- motor
- reducer
- shell
- speed reducer
- output shaft
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Abstract
The utility model discloses a motor and reducer assembly, which comprises a motor and a reducer; one end of a motor output shaft of the motor is supported on a motor rear shell of the motor, which is far away from the speed reducer, through a motor side supporting bearing, and the other end of the motor output shaft extends into an inner cavity of the speed reducer and is supported on a speed reducer front shell of the speed reducer, which is far away from the motor, through a speed reducer side supporting bearing; and the output shaft of the motor is in transmission fit with the intermediate transmission shaft of the speed reducer. In the motor and reducer assembly of the utility model, the output of the motor and the input of the reducer share one shaft, and are realized by the motor output shaft, namely the motor output shaft is also used as the input shaft of the reducer, and the power is directly transmitted to the intermediate transmission shaft of the reducer, thus simplifying the assembly between the output of the motor and the input of the reducer, and improving the assembly efficiency; and the output shaft of the motor directly transmits power to the intermediate transmission shaft of the speed reducer, so that the transmission efficiency is improved.
Description
Technical Field
The utility model relates to a power transmission technical field, more specifically say, relate to a motor and reduction gear assembly.
Background
The motor outputs power through the speed reducer to realize speed reduction and torque increase. At present, an output shaft of a motor is in transmission connection with an input shaft of a speed reducer to realize that power of the motor is transmitted to the input shaft of the speed reducer, and then the input shaft is transmitted to the output shaft of the speed reducer through an intermediate transmission shaft to realize power output. Thus, the output shaft of the motor and the input shaft of the reducer need to be assembled separately, and the two shafts need to be connected together, which affects the assembly efficiency.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention is directed to a motor and reducer assembly to improve the assembling efficiency.
In order to achieve the above object, the utility model discloses a following technical scheme:
a motor and reducer assembly comprises a motor and a reducer; one end of a motor output shaft of the motor is supported on a motor rear shell of the motor, which is far away from the speed reducer, through a motor side supporting bearing, and the other end of the motor output shaft extends into an inner cavity of the speed reducer and is supported on a speed reducer front shell of the speed reducer, which is far away from the motor, through a speed reducer side supporting bearing; and the output shaft of the motor is in transmission fit with the intermediate transmission shaft of the speed reducer.
Preferably, the motor and reducer assembly includes a motor rear shell; a reducer front shell; the middle integrated shell is positioned between the motor rear shell and the speed reducer front shell, the rear part of the middle integrated shell is matched with the motor rear shell to form a shell of the motor, and the front part of the middle integrated shell is matched with the speed reducer front shell to form a box body of the speed reducer;
the middle integrated shell is provided with a through hole for the motor output shaft to enter the inner cavity of the speed reducer, the through hole is provided with an oil seal for sealing and separating the inner cavity of the motor from the inner cavity of the speed reducer and an oil seal groove for installing the motor output end of the oil seal, and the oil seal is sleeved on the motor output shaft.
Preferably, in the motor and speed reducer assembly, the oil seal groove at the output end of the motor is integrally formed on the front end face of the front part of the middle integrated shell and protrudes towards the inner cavity of the speed reducer.
Preferably, in the motor and reducer assembly, a middle transmission shaft bearing chamber and a reducer output shaft motor side bearing chamber are further integrally formed on the front end face of the front portion of the middle integrated shell.
Preferably, in the motor and speed reducer assembly, an avoidance groove is formed in the front portion of the middle integrated shell on the non-output side of the speed reducer.
Preferably, in the motor and reducer assembly, the front portion of the middle integrated housing and the outer contour of the front housing of the reducer have the same shape.
Preferably, in the motor and reducer assembly, a part of the rear portion of the middle integrated shell has the same shape as the outer contour of the rear shell of the motor, and another part of the rear portion of the middle integrated shell has the same shape as the outer contour of the front portion of the middle integrated shell at the output end of the reducer.
Preferably, in the motor and speed reducer assembly, a motor assembling hole for connecting with the motor rear shell and a speed reducer assembling hole for connecting with the speed reducer front shell are formed in the middle integrated shell.
Preferably, in the above-mentioned motor and reduction gear assembly, the motor pilot hole includes a plurality of heavy groove mounting holes, and wherein two run through to on the anterior terminal surface of the integrative shell of middle part, other are located and dodge groove department.
Preferably, in the motor and reducer assembly, the motor is a disc motor.
According to the technical scheme, the motor and reducer assembly comprises a motor and a reducer; one end of a motor output shaft of the motor is supported on a motor rear shell of the motor, which is far away from the speed reducer, through a motor side supporting bearing, and the other end of the motor output shaft extends into an inner cavity of the speed reducer and is supported on a speed reducer front shell of the speed reducer, which is far away from the motor, through a speed reducer side supporting bearing; and the output shaft of the motor is in transmission fit with the intermediate transmission shaft of the speed reducer.
In the motor and reducer assembly of the utility model, the output of the motor and the input of the reducer share one shaft, and are realized by the motor output shaft, namely the motor output shaft is also used as the input shaft of the reducer, and the power is directly transmitted to the intermediate transmission shaft of the reducer, thus simplifying the assembly between the output of the motor and the input of the reducer, and improving the assembly efficiency; and the output shaft of the motor directly transmits power to the intermediate transmission shaft of the speed reducer, so that the transmission efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a motor and reducer assembly disclosed in an embodiment of the present invention;
fig. 2 is an axial cross-sectional view of a motor and reducer assembly along an output shaft of the motor according to an embodiment of the present invention;
fig. 3 is a schematic structural view of the front part of the middle integrated shell disclosed in the embodiment of the present invention;
fig. 4 is a schematic structural view of the rear part of the middle integrated shell disclosed in the embodiment of the present invention.
Detailed Description
The embodiment of the utility model discloses motor and reduction gear assembly has improved assembly efficiency.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, an electric motor and reducer assembly according to an embodiment of the present invention includes an electric motor and a reducer; one end of a motor output shaft 9 of the motor is supported on a motor rear shell of the motor, which is far away from the speed reducer, through a motor side supporting bearing 5, and the other end of the motor output shaft extends into an inner cavity of the speed reducer and is supported on a speed reducer front shell of the speed reducer, which is far away from the motor, through a speed reducer side supporting bearing 10; and the output shaft 9 of the motor is in transmission fit with the intermediate transmission shaft of the speed reducer.
In the motor and reducer assembly of the utility model, the output of the motor and the input of the reducer share one shaft, and are realized through the motor output shaft 9, namely the motor output shaft 9 is also used as the input shaft of the reducer, and directly transmits power to the intermediate transmission shaft of the reducer, thus simplifying the assembly between the output of the motor and the input of the reducer, and improving the assembly efficiency; and the motor output shaft 9 directly transmits power to the intermediate transmission shaft of the speed reducer, so that the transmission efficiency is improved.
In addition, two bearings for supporting the motor output shaft 9 are respectively arranged on the front shell of the speed reducer and the rear shell of the motor, and the support is stable, accurate and reliable.
Specifically, the part of the motor output shaft 9, which is positioned in the cavity of the motor, is sleeved with the rotor disc 6 to form a rotating force of the motor output shaft 9 by matching with the motor stator, the motor output shaft 9 is matched with the intermediate transmission shaft through the transmission gear 8, and the intermediate transmission shaft transmits the power to the reducer output shaft 4 to realize power output.
Preferably, as shown in fig. 1 to 4, the motor and reducer assembly disclosed in the embodiment of the present invention includes a motor rear case 1; a reducer front case 3; the middle integrated shell 2 is positioned between the motor rear shell 1 and the speed reducer front shell 3, the rear part of the middle integrated shell 2 is matched with the motor rear shell 1 to form a shell of the motor, and the front part of the middle integrated shell 2 is matched with the speed reducer front shell 3 to form a box body of the speed reducer; wherein, the middle integrated shell 2 is provided with a perforation 21 for the motor output shaft 9 to enter the inner cavity of the speed reducer, the perforation 21 is provided with an oil seal 7 for sealing and separating the inner cavity of the motor and the inner cavity of the speed reducer and an oil seal groove 22 for installing the motor output end of the oil seal 7, and the oil seal 7 is sleeved on the motor output shaft 9.
It should be noted that the utility model discloses regard the position that the motor set up as the rear to the position that the reduction gear set up is as the place ahead, and the casing part of reduction gear is kept away from for the motor to motor backshell 1, and the casing part of motor is kept away from for the reduction gear to reduction gear front shell 3, uses 4 outputs of reduction gear output shaft as the front end.
The utility model discloses utilize the rear portion of middle part integral shell 2 and the shell that 1 cooperation formed the motor of motor backshell, utilize the box that the anterior of middle part integral shell 2 and 3 cooperations of preceding shell of reduction gear formed the reduction gear, motor output shaft 9 in addition through the perforation 21 of middle part integral shell 2 get into the reduction gear inner chamber with the transmission shaft transmission cooperation of reduction gear to utilize the oil blanket 7 of installing on middle part integral shell 2 to seal apart motor inner chamber and reduction gear inner chamber.
The utility model discloses a specific assembling process of motor and reduction gear assembly as follows:
firstly, the motor side supporting bearing 5 is installed at one end, far away from the speed reducer, of a motor output shaft 9 of a motor rotor assembly, then the rotor assembly formed by the motor output shaft 9 with the rotor disc 6 is placed in the motor rear shell 1, then the oil seal 7 is installed on the motor output shaft 9 and completely immersed in an oil seal groove 22 of the motor output end, next, the speed reducer side supporting bearing 10 is installed at one end, far away from the motor, of the motor output shaft 9, then the middle transmission shaft of the speed reducer and the speed reducer output shaft 4 are installed respectively, and finally the speed reducer front shell 3 is installed at the front part of the middle integrated shell 2.
In conclusion, the utility model reduces the number of parts forming the shell, simplifies the assembly steps, and further improves the assembly efficiency; and meanwhile, the cost is saved. And the middle part of the motor and the reducer, namely the middle integrated shell 2, has no transition support bearing and only has one oil seal groove for sealing, and the motor and the reducer are isolated by an oil seal 7, so that the structure is simplified.
Of course, according to the actual specification of motor output shaft 9, the utility model discloses also can set up middle part support bearing on middle part integrative shell 2, improve motor output shaft 9's stationarity.
As shown in fig. 3, an oil seal groove 22 at the output end of the motor is integrally formed on the front end surface of the front portion of the middle integrated housing 2 and protrudes toward the inner cavity of the reducer. In the embodiment, the positioning ring protruding out of the front end face of the front part of the middle integrated shell 2 and the end face of the outer ring of the through hole 21 are utilized to form the oil seal groove 22 of the output end of the motor, the middle integrated shell 2 is firstly installed during assembly, then the oil seal 7 is installed on the output shaft 9 of the motor, and the positioning ring and the middle integrated shell 2 are integrally formed, so that the processing is convenient, and the structure is simplified.
It can be understood that the motor output end oil seal groove 22 can also be arranged on the rear end face of the rear part of the middle integrated shell 2, and extends towards the inner cavity of the motor, and during assembly, the oil seal 7 is firstly installed on the motor output shaft 9, and then the middle integrated shell 2 is installed. Of course, the oil seal groove may be separately assembled to the middle integrated housing 2.
In order to further facilitate the assembly, a middle transmission shaft bearing chamber 23 and a reducer output shaft motor side bearing chamber 24 are further integrally formed on the front end face of the front part of the middle integrated shell 2. This application makes middle transmission shaft bearing room 23, reduction gear output shaft motor side bearing room 24 and the integrative shell 2 integrated into one piece in middle part, and convenient processing has further simplified the structure. Of course, the present application may also support the bearing by separately mounting the bearing mount.
Preferably, the front part of the middle integrated shell 2 is provided with an avoidance groove on the non-output side of the reducer. This application offers the position that avoids the groove with the front portion of middle part intergral template 2 not be connected with reduction gear front shell 3, has reduced occupation volume and weight.
The front part of the middle integrated shell 2 is the same as the external outline shape of the front shell 3 of the speed reducer, so that the front part of the middle integrated shell 2 and the relative mounting position of the front shell 3 of the speed reducer can be conveniently aligned, and the assembly and the processing are convenient.
One part of the rear part of the middle integrated shell 2 is the same as the external contour shape of the motor rear shell 1, and the other part of the rear part of the middle integrated shell 2 is the same as the external contour shape of the front part of the speed reducer output end. Therefore, the rear part of the middle integrated shell 2 and the relative installation position of the motor rear shell 1 are conveniently aligned, and the connection strength of the front part and the rear part of the middle integrated shell 2 is increased.
The middle integrated shell 2 is provided with a motor assembly hole 26 used for being connected with the motor rear shell 1 and a speed reducer assembly hole 25 used for being connected with the speed reducer front shell 3. This application is through threaded connection spare cooperation motor pilot hole 26 such as screw, bolt, reduction gear pilot hole 25, realizes the equipment of integrative shell 2 in middle part and motor backshell 1 and reduction gear front shell 3, makes things convenient for the dismouting. Of course, the assembling holes can be replaced by connecting columns and the like to realize the assembling of the two parts.
In order to ensure the connection strength between the motor rear shell 1 and the middle integrated shell 2, the motor assembly holes 26 include a plurality of sinking groove mounting holes, two of which run through to the front end face of the middle integrated shell 2, and the other are located at the avoidance groove. Specifically, as shown in fig. 3, the motor assembly holes 26 are six and uniformly distributed along the circumferential direction, two of the motor assembly holes extend into the reducer casing, so that the connection strength in the whole circumferential direction is ensured, and the threaded connection piece is prevented from being exposed through the sink mounting holes to interfere with other structures.
In order to further improve the structure compactness, the motor is a disc type motor. This application combines disc motor and reduction gear together, and disc motor volume is less to make motor and reduction gear assembly frivolous more. Of course, the motor may be of other types.
The utility model discloses make full use of disc motor's structural feature (disc motor is in the assembling process, and when the motor backshell 1 was packed into to the rotor subassembly, under the single bearing supported, the rotor subassembly did not have the condition of incline), reduced middle transition support bearing under the prerequisite of guaranteeing to support intensity, reduced entire system's axial distance effectively, the supported position is more accurate, and transmission efficiency is higher, also corresponding saving the cost. Moreover, the structure is simple, and the assembly efficiency is high.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A motor and reducer assembly comprises a motor and a reducer; the motor is characterized in that one end of a motor output shaft (9) of the motor is supported on a motor rear shell (1) of the motor, which is far away from the speed reducer, through a motor side supporting bearing (5), and the other end of the motor output shaft extends into an inner cavity of the speed reducer and is supported on a speed reducer front shell (3) of the speed reducer, which is far away from the motor, through a speed reducer side supporting bearing (10); and the motor output shaft (9) is in transmission fit with the intermediate transmission shaft of the speed reducer.
2. The motor and reducer assembly according to claim 1, comprising a motor rear shell (1); a reducer front shell (3); the middle integrated shell (2) is positioned between the motor rear shell (1) and the speed reducer front shell (3), the rear part of the middle integrated shell (2) is matched with the motor rear shell (1) to form a shell of the motor, and the front part of the middle integrated shell (2) is matched with the speed reducer front shell (3) to form a box body of the speed reducer;
wherein, middle part intergral casing (2) are provided with the confession motor output shaft (9) get into perforation (21) of reduction gear inner chamber, perforation (21) department is provided with sealed motor inner chamber that separates with oil blanket (7) and the installation of reduction gear inner chamber motor output oil seal groove (22) of oil blanket (7), oil blanket (7) cover is in on motor output shaft (9).
3. The motor and reducer assembly according to claim 2, wherein the motor output oil seal groove (22) is integrally formed on the front end face of the front portion of the middle integrated shell (2) and protrudes toward the reducer inner cavity.
4. The motor and reducer assembly according to claim 3, wherein the front end of the front part of the middle integrated shell (2) is integrally formed with a middle transmission shaft bearing chamber (23) and a reducer output shaft motor side bearing chamber (24).
5. Motor and reducer assembly according to claim 2, in which the front part of the central integral shell (2) is provided with an escape slot on the non-output side of the reducer.
6. A motor and reducer assembly according to claim 5, in which the front part of the mid-integral shell (2) is of the same shape as the external profile of the reducer front shell (3).
7. Motor and reducer assembly according to claim 2, characterised in that the rear part of the central integral shell (2) has, in one part, the same shape of the external profile of the rear shell (1) of the motor and, in the other part, the same shape of the external profile of the front part of the central integral shell (2) at the output of the reducer.
8. The motor and reducer assembly according to claim 5, wherein the middle integrated shell (2) is provided with a motor mounting hole (26) for connecting with the motor rear shell (1), and a reducer mounting hole (25) for connecting with the reducer front shell (3).
9. The motor and reducer assembly according to claim 8, wherein the motor mounting holes (26) comprise a plurality of countersunk mounting holes, two of which extend through to the front end face of the mid-section integral shell (2) and the other of which is located at the escape slot.
10. The motor and reducer assembly of claim 1, wherein the motor is a disc motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022110671.7U CN212297513U (en) | 2020-09-23 | 2020-09-23 | Motor and speed reducer assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022110671.7U CN212297513U (en) | 2020-09-23 | 2020-09-23 | Motor and speed reducer assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212297513U true CN212297513U (en) | 2021-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022110671.7U Active CN212297513U (en) | 2020-09-23 | 2020-09-23 | Motor and speed reducer assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212297513U (en) |
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2020
- 2020-09-23 CN CN202022110671.7U patent/CN212297513U/en active Active
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