阅读说明：本技术 一种新型增程式发电机旋转变压器转子的安装结构 (Novel mounting structure of range-extending type generator rotary transformer rotor ) 是由 奉小桂 周晓文 王长江 于 2019-12-26 设计创作，主要内容包括：本发明公开了一种新型增程式发电机旋转变压器转子的安装结构,包括固定板、旋转变压器定子、旋转变压器转子和电机转子,所述电机转子的一侧固定安装有支撑架,所述支撑架的一侧通过柔性联轴器固定连接有转轴,所述转轴的一端贯穿固定板固定连接有螺母,所述固定板用于将本安装结构固定安装于电机端盖的一侧,所述固定板的一侧开设有凹槽,所述凹槽的内部一侧嵌装固定有转动轴承,所述转轴固定插接于转动轴承的内部,所述旋转变压器定子和旋转变压器转子安装于凹槽的内部另一侧。本发明可解决电机定转子偏心对旋转变压器同轴度的精度要求,又可以避免电机甚至增程器发动机对旋转变压器的冲击载荷问题。(The invention discloses a novel installation structure of a rotary transformer rotor of a range-extended generator, which comprises a fixed plate, a rotary transformer stator, a rotary transformer rotor and a motor rotor, wherein a support frame is fixedly installed on one side of the motor rotor, a rotating shaft is fixedly connected to one side of the support frame through a flexible coupling, a nut is fixedly connected to one end of the rotating shaft through the fixed plate, the fixed plate is used for fixedly installing the installation structure on one side of a motor end cover, a groove is formed in one side of the fixed plate, a rotary bearing is fixedly embedded in one side of the inner part of the groove, the rotating shaft is fixedly inserted into the rotary bearing, and the rotary transformer stator and the rotary transformer rotor are installed on the other side of the inner part of. The invention can solve the precision requirement of the eccentricity of the stator and the rotor of the motor on the coaxiality of the rotary transformer, and can also avoid the impact load problem of the motor and even a range extender engine on the rotary transformer.)

1. The utility model provides a novel mounting structure of range extending type generator resolver rotor, includes fixed plate (1), resolver stator (4), resolver rotor (6) and electric motor rotor (9), its characterized in that: one side fixed mounting of motor rotor (9) has support frame (10), one side of support frame (10) is through flexible coupling (11) fixedly connected with pivot (7), the one end of pivot (7) runs through fixed plate (1) fixedly connected with nut (5), fixed plate (1) is used for with this mounting structure fixed mounting in one side of motor end cover, one side of fixed plate (1) is seted up fluted (12), the inside one side of recess (12) is inlayed and is adorned and is fixed with rolling bearing (8), pivot (7) are fixed to be pegged graft in the inside of rolling bearing (8), install in the inside opposite side of recess (12) resolver stator (4) and resolver rotor (6), and resolver rotor (6) suit is fixed in on the outer wall of pivot (7).

2. The novel mounting structure of the rotary transformer rotor of the extended range generator according to claim 1, characterized in that: one side of the motor rotor (9) is provided with a threaded blind hole (14), the support frame (10) is fixedly installed on one side of the motor rotor (9) through a bolt (15), and one end of the bolt (15) is installed inside the threaded blind hole (14).

3. The novel mounting structure of the rotary transformer rotor of the extended range generator according to claim 1, characterized in that: the central lines of the rotary transformer stator (4) and the rotary transformer rotor (6) are coaxially arranged.

4. The novel mounting structure of the rotary transformer rotor of the extended range generator according to claim 1, characterized in that: the flexible coupling (11) is a rubber flexible coupling.

5. The novel mounting structure of the rotary transformer rotor of the extended range generator according to claim 1, characterized in that: one side of the fixed plate (1) is provided with a clamping plate (3) for fixing a rotary transformer stator (4).

6. The novel mounting structure of the rotary transformer rotor of the extended range generator according to claim 5, characterized in that: the other side fixed mounting of fixed plate (1) has backing plate (2) that are used for fixed rolling bearing (8), set up through-hole (13) that are used for pivot (7) to pass on backing plate (2).

Technical Field

The invention relates to the technical field of rotary transformer rotors of permanent magnet synchronous motors, in particular to a novel mounting structure of a rotary transformer rotor of an extended-range generator.

Background

The range-extended automobile generator is an important component of range-extended automobile power, and an automobile engine drives the generator to rotate, so that mechanical energy is converted into electric energy, a motor is driven, and a pure electric driving mode of the automobile is realized. The engine of the extended range vehicle does not participate in the driving mode of the vehicle. The generator is a permanent magnet synchronous generator, and a rotor of the extended-range generator is directly connected with a crankshaft of the fuel engine by a flange surface. The generator realizes the control of the generator through the signal acquisition of the rotary transformer to the position of the rotor. The rotary transformer of the traditional permanent magnet motor is installed in a way that a rotary transformer stator is fixed with a motor end cover, and the rotary transformer rotor is sleeved on a motor shaft and locked by a nut.

However, because the main bearing of the extended range engine is a sliding bearing, the gap of a single-side oil film of the main bearing is about 0.04mm, if a traditional mounting structure mode of a rotary transformer is adopted, the eccentricity value of a stator and a rotor of the generator can reach 0.08mm under the actual operation condition, and the requirement of the rotary transformer selected by the generator on the mounting precision is that the concentricity is less than 0.05 mm. This will result in distortion or even failure of the output signal of the resolver. Once the rotary transformer fails, the control failure of the permanent magnet synchronous generator can be caused, and the function failure of the whole range extender (APU) can be caused, so that a novel mounting structure of the rotary transformer rotor of the range extender generator is provided.

Disclosure of Invention

The invention aims to provide a novel mounting structure of a rotary transformer rotor of a range-extended generator, which can solve the precision requirement of the eccentricity of a stator and a rotor of a motor on the coaxiality of the rotary transformer and can also avoid the impact load problem of the motor and even an engine of the range-extended generator on the rotary transformer so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a novel mounting structure of range extending type generator resolver rotor, includes fixed plate, resolver stator, resolver rotor and electric motor rotor, one side fixed mounting of electric motor rotor has the support frame, flexible shaft coupling fixedly connected with pivot is passed through to one side of support frame, the one end of pivot runs through fixed plate fixedly connected with nut, the fixed plate is used for with this mounting structure fixed mounting in one side of motor end cover, one side of fixed plate is seted up flutedly, the inside one side of recess is inlayed and is equipped with rolling bearing, the fixed grafting in rolling bearing's inside of pivot, resolver stator and resolver rotor are installed in the inside opposite side of recess, and resolver rotor suit is fixed in on the outer wall of pivot.

Preferably, one side of the motor rotor is provided with a threaded blind hole, the support frame is fixedly installed on one side of the motor rotor through a bolt, and one end of the bolt is installed inside the threaded blind hole in a threaded manner.

Preferably, the center lines of the resolver stator and the resolver rotor are coaxially arranged.

Preferably, the flexible coupling is a rubber flexible coupling.

Preferably, one side of the fixing plate is provided with a clamping plate for fixing the stator of the rotary transformer.

Preferably, a base plate for fixing the rotating bearing is fixedly mounted on the other side of the fixing plate, and a through hole for the rotating shaft to pass through is formed in the base plate.

Compared with the prior art, the invention has the beneficial effects that:

1. after the rotary transformer rotor is arranged on the rotating shaft, the rotary transformer rotor is connected with the motor rotor through the flexible coupling and rotates along with the motor rotor, the rotary transformer stator is fixed in the fixed plate, the fixed plate is fixed with an end cover of the motor, the coaxiality between the rotary transformer stator and the rotary transformer rotor can be ensured through the rotating bearing, and the rotating bearing does not bear the weight and the load of the whole rotating shaft system because the rotating shaft is connected with the motor rotor through the flexible coupling, so that the precision requirement of the eccentricity of the motor stator and the motor rotor on the coaxiality of the rotary transformer can be met, and the impact load of the motor and even a range extender engine on the rotary transformer can be avoided.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a threaded blind hole structure according to the present invention;

FIG. 3 is a schematic view of a card board structure of the present invention.

In the figure: 1. a fixing plate; 2. a base plate; 3. clamping a plate; 4. a resolver stator; 5. a nut; 6. a rotary transformer rotor; 7. a rotating shaft; 8. a rotating bearing; 9. a motor rotor; 10. a support frame; 11. a flexible coupling; 12. a groove; 13. a through hole; 14. a threaded blind hole; 15. and (4) bolts.

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.

Referring to fig. 1-3, the present invention provides a technical solution: the novel installation structure of the rotary transformer rotor of the extended range generator comprises a fixing plate 1, a rotary transformer stator 4, a rotary transformer rotor 6 and a motor rotor 9, wherein a support frame 10 is fixedly installed on one side of the motor rotor 9, a threaded blind hole 14 is formed in one side of the motor rotor 9, the support frame 10 is fixedly installed on one side of the motor rotor 9 through a bolt 15, one end of the bolt 15 is installed inside the threaded blind hole 14 in a threaded mode, a rotating shaft 7 is fixedly connected to one side of the support frame 10 through a flexible coupling 11, the flexible coupling 11 is arranged to be a rubber flexible coupling, and one end of the rotating shaft 7 penetrates through the fixing plate 1 and is fixedly connected with;

fixed plate 1 is used for with this mounting structure fixed mounting in one side of motor end cover, and one side of fixed plate 1 is seted up fluted 12, and the inside one side of recess 12 is inlayed and is adorned and be fixed with rolling bearing 8, and pivot 7 is fixed to be pegged graft in rolling bearing 8's inside, and resolver stator 4 and resolver rotor 6 are installed in the inside opposite side of recess 12, and resolver rotor 6 suit is fixed in on the outer wall of pivot 7, and resolver stator 4 and resolver rotor 6's central line is coaxial arrangement: one side of fixed plate 1 is provided with cardboard 3 that is used for fixed resolver stator 4, and the opposite side fixed mounting of fixed plate 1 has backing plate 2 that is used for fixed rolling bearing 8, offers the through-hole 13 that is used for pivot 7 to pass on backing plate 2.

The working principle is as follows: in use, after the rotary transformer rotor 6 is installed on the rotating shaft 7, the rotary transformer rotor 6 is connected with the motor rotor 9 through the flexible coupler 11, and rotates along with the motor rotor 9, the rotary transformer stator 4 is fixed in the fixing plate 1, the fixing plate 1 is fixed with an end cover of the motor, the coaxiality between the rotary transformer stator 4 and the rotary transformer rotor 6 can be ensured through the rotating bearing 8, because the rotating shaft 7 is connected with the motor rotor 9 through the flexible coupler 11, the rotating bearing 8 does not bear the weight and the load of the whole rotating shaft system, the precision requirement of the eccentricity of the motor stator and the motor rotor on the coaxiality of the rotary transformer can be met, and the impact load of the motor and even a range extender engine on the rotary transformer can be avoided.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.