CN215221928U

CN215221928U - Rotor shaft for automobile

Info

Publication number: CN215221928U
Application number: CN202121389744.9U
Authority: CN
Inventors: 李梅娟
Original assignee: Xixia Xiangshun Mechanical Equipment Co ltd
Current assignee: Xixia Xiangshun Mechanical Equipment Co ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-12-17
Anticipated expiration: 2031-06-22

Abstract

The utility model relates to the field of automotive technology, and a rotor shaft for car is disclosed, including first axis body, the second axis body, third axis body, fourth axis body, connection fixture block, guide vane, spacing ring, kicking block, connecting screw and rotor core, the lower extreme of first axis body is connected with spacing ring, the lower bottom surface of spacing ring is connected with the second axis body, the lower extreme of second axis body is connected with the third axis body, the lower extreme of third axis body is connected with the fourth axis body, the upper end of first axis body is provided with connecting screw. This rotor spindle for car can make machine oil and axis body area of contact bigger through the guide vane who is helical structure, makes the rotor spindle more abundant even of machine oil and axis body contact when high-speed rotation to the cooling of rotor spindle accelerates, uses through reset spring and kicking block, the cooperation of connecting fixture block and connecting groove, makes the junction homoenergetic at the whole both ends of rotor spindle convenient and reliable connect fixed action, has guaranteed rotor spindle moving stability.

Description

Rotor shaft for automobile

Technical Field

The utility model relates to the technical field of automobiles, specifically be a rotor shaft for car.

Background

The rotor shaft is the important component part of automobile motor, the rotor shaft still is provided with the bearing between with the motor, generally at the motor during operation, no matter be coil winding, still the winding stator, all can the heat production, because the high temperature can reduce the electrical apparatus performance of motor element, cause insulating material insulating properties to descend or even damage, reduce motor life, consequently must strictly control motor temperature, the mode of control motor temperature mainly has two aspects to reduce calorific capacity and increase radiating efficiency, but mostly be the winding stator among the prior art, the winding stator is because of its structural feature intensification is more rapid, therefore efficient heat radiation structure also seems especially important.

Some of the rotor shaft devices for automobiles on the market today:

(1) in the rotating process of the motor, most rotors inside the stators rotate ceaselessly to generate a large amount of heat, most of heat dissipation structures of the central motor in the prior art are stator heat dissipation, the structure for dissipating the heat of the rotors is almost blank, and meanwhile, friction can occur between the rotor shaft and the bearing and a large amount of heat can be generated;

(2) in the rotor shaft connection process, because the rotor shaft for the automobile generator now, after rotor core is advanced in the installation, and rotor core between fixed not very firm, axial displacement often takes place easily, current bearing mostly is the direct cover and establishes on rotor shaft in addition, when rotor shaft high-speed operation, under the effect of lubricating oil, the bearing is taken place with rotor shaft easily and is contorted the removal, causes automobile motor operating stability relatively poor, leads to current automobile rotor shaft for the automobile to have the not high problem of practicality.

We have therefore proposed a rotor shaft for a motor vehicle in order to solve the problems set out above.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To prior art's not enough in the above-mentioned background art, the utility model aims to provide a rotor shaft for car to solve some rotor shafts for car on the existing market that provide in the above-mentioned background art, there is the relatively poor and fixed not very firm problem of junction of rotor shaft radiating effect.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

a rotor shaft for an automobile comprises a first shaft body, a second shaft body, a third shaft body, a fourth shaft body, a connecting clamping block, a guide vane, a limiting ring, a jacking block, a connecting stud and a rotor core, wherein the lower end of the first shaft body is connected with the limiting ring;

the inner part of the first shaft body is provided with a movable groove, each movable groove is internally provided with an ejector block, the ejector blocks are movably arranged on the first shaft body through the movable grooves, and the outer side of the second shaft body is provided with guide vanes;

the lower extreme of fourth axis body is connected with the connection fixture block, rotor core's inside is seted up connecting groove, the fourth axis body is through connecting fixture block and rotor core looks joint.

Preferably, the top end of the first shaft body is matched and fixed with the lower end of the connecting stud, the bottom end of the first shaft body is matched and fixed at the middle position of the upper surface of the limiting ring, the movable grooves are symmetrically formed in the two sides of the middle position of the first shaft body, the outer side of the connecting stud is provided with a thread groove, and the top end of the second shaft body is connected to the lower bottom surface of the limiting ring.

Preferably, the top end of the second shaft body is matched and fixed with the middle position of the lower bottom surface of the limiting ring, the bottom end of the second shaft body is connected to the top end of the third shaft body, and the outer side of the second shaft body is fixedly provided with a guide vane matched with the guide vane.

Preferably, the whole of the third shaft body is of a stepped structure, a fillet is formed in the transition section of the stepped structure, the middle position of the top end of the stepped structure is matched and fixed with the bottom end of the second shaft body, and the middle position of the bottom end of the stepped structure is matched and fixed with the top end of the fourth shaft body.

Furthermore, four connecting clamping blocks are distributed at the lower end of the fourth shaft body in a circumferential array mode, each connecting clamping block is fixedly connected to the outer side of the lower end of the fourth shaft body, and the connecting clamping blocks are matched with the connecting grooves.

Furthermore, the guide vanes are matched with the second shaft body, the whole guide vanes are of a spiral structure, the guide vanes are fixedly connected to the outer surface of the second shaft body, the number of the connecting grooves is four, the connecting grooves are arranged in the middle of the rotor core in a circumferential array, and the connecting clamping blocks are clamped with the rotor core through the connecting grooves.

Further, two reset spring is all installed to the one end of kicking block, reset spring and kicking block all with activity groove looks adaptation, reset spring's one end is fixed with one side adaptation of kicking block, reset spring's the other end is fixed with the inside wall adaptation in activity groove, every the opposite side of kicking block is the inclined plane structure, every the kicking block all is at the activity inslot through reset spring swing joint.

(III) advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that: this rotor shaft for car:

(1) the guide vane which is in a spiral structure can increase the contact area of engine oil and the shaft body, so that the engine oil and the shaft body are contacted more fully and uniformly when the rotor shaft rotates at a high speed, the cooling of the rotor shaft is accelerated, the heat generated on the rotor shaft is effectively reduced, the service life of the rotor shaft is prolonged, and the production cost is reduced; meanwhile, the heat is dissipated through the structural design of the guide vanes and the air flow, the production cost is low, the heat dissipation efficiency is high, the overhigh temperature of the main body of the rotor shaft can be effectively prevented, the situation that the rotor shaft is overheated to influence the normal use is avoided, and the use effect of the rotor shaft for the automobile is improved.

(2) In the process of connecting the rotor shaft, the rotor shaft can be connected and positioned through the first shaft body and the connecting stud, and meanwhile, the reset spring on the first shaft body is matched with the ejector block, so that when the bearing is installed, the ejector block can correspondingly stretch and move in the movable groove only through simple pressing action, and the bearing is safely and reliably fixed through the limiting circular ring and the ejector block; simultaneously, the rotor core is stably and reliably connected with the rotor shaft through the matching of the connecting grooves for connecting the clamping block and the rotor core, the connection parts at the two ends of the whole rotor shaft can be conveniently and reliably connected and fixed, so that the rotor shaft can be prevented from being moved in a high-speed operation, the stability of the operation of the rotor shaft is ensured, and the safety performance and the practical effect of the use of the rotor shaft for the automobile are improved.

Drawings

Fig. 1 is a schematic perspective view of the entire rotor shaft for an automobile according to the present invention;

fig. 2 is a schematic structural view of an overall front view of the rotor shaft for an automobile according to the present invention;

FIG. 3 is a schematic view of the connection structure of the whole rotor shaft for an automobile according to the present invention;

fig. 4 is a schematic view of a connection structure of a return spring and a top block of the rotor shaft for an automobile according to the present invention;

fig. 5 is the schematic view of the structure of the connecting fixture block and the connecting groove of the rotor shaft for the automobile.

In the figure: the rotor comprises a first shaft body 1, a movable groove 101, a second shaft body 2, a third shaft body 3, a fourth shaft body 4, a connecting clamping block 5, a guide vane 6, a limiting ring 7, an ejector block 8, a return spring 801, a connecting stud 9, a rotor core 10 and a connecting groove 1001.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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. 1-5, the present invention provides a rotor shaft for an automobile; comprises a first shaft body 1, a second shaft body 2, a third shaft body 3, a fourth shaft body 4, a connecting clamping block 5, guide vanes 6, a limiting ring 7, an ejector block 8, a connecting stud 9 and a rotor core 10, wherein the lower end of the first shaft body 1 is connected with the limiting ring 7, the lower bottom surface of the limiting ring 7 is connected with the second shaft body 2, the top end of the first shaft body 1 is matched and fixed with the lower end of the connecting stud 9, the bottom end of the first shaft body 1 is matched and fixed with the middle position of the upper surface of the limiting ring 7, movable grooves 101 are symmetrically arranged on two sides of the middle position of the first shaft body 1, thread grooves are arranged on the outer side of the connecting stud 9, the top end of the second shaft body 2 is connected with the lower bottom surface of the limiting ring 7, the top end of the second shaft body 2 is matched and fixed with the middle position of the lower bottom surface of the limiting ring 7, the bottom end of the second shaft body 2 is connected with the top end of the third shaft body 3, and guide vanes 6 which are matched are fixedly arranged on the outer side of the second shaft body 2, the lower end of the second shaft body 2 is connected with a third shaft body 3, the lower end of the third shaft body 3 is connected with a fourth shaft body 4, the whole third shaft body 3 is of a stepped structure, a transition section of the stepped structure is provided with a round angle, the middle position of the top end of the stepped structure is matched and fixed with the bottom end of the second shaft body 2, the middle position of the bottom end of the stepped structure is matched and fixed with the top end of the fourth shaft body 4, and the upper end of the first shaft body is provided with a connecting stud 9;

the inner part of the first shaft body 1 is provided with movable grooves 101, each movable groove 101 is internally provided with an ejector block 8, each ejector block 8 is movably arranged on the first shaft body 1 through the movable groove 101, the outer side of the second shaft body 2 is provided with a guide vane 6, the guide vanes 6 are matched with the second shaft body 2, the whole guide vanes 6 are of a spiral structure, and the guide vanes 6 are fixedly connected to the outer surface of the second shaft body 2;

the lower end of the fourth shaft body 4 is connected with a connecting fixture block 5, a connecting groove 1001 is formed in the rotor core 10, and the fourth shaft body 4 is clamped with the rotor core 10 through the connecting fixture block 5;

as an optimal technical solution of the utility model: the number of the connecting fixture blocks 5 is four, the four connecting fixture blocks 5 are distributed at the lower end of the fourth shaft body 4 in a circumferential array, each connecting fixture block 5 is fixedly connected to the outer side of the lower end of the fourth shaft body 4, the connecting fixture blocks 5 are matched with the connecting grooves 1001, the number of the connecting grooves 1001 is four, the four connecting grooves 1001 are arranged at the middle position of the rotor core 10 in a circumferential array, the connecting fixture blocks 5 are clamped with the rotor core 10 through the connecting grooves 1001, the reset springs 801 are mounted at one ends of the two ejector blocks 8, the reset springs 801 and the ejector blocks 8 are matched with the movable groove 101, one ends of the reset springs 801 are matched and fixed with one side of the ejector blocks 8, the other ends of the reset springs 801 are matched and fixed with the inner side wall of the movable groove 101, the other side of each ejector block 8 is of an inclined plane structure, each ejector block 8 is movably connected in the movable groove 101 through the reset springs 801, when the bearing is mounted, the jacking block 8 correspondingly extends and retracts in the movable groove 101 only through simple pressing action, and the limit ring 7 and the jacking block 8 are used for safely and reliably fixing the bearing; meanwhile, the connecting grooves 1001 of the connecting fixture block 5 and the rotor core 10 are matched for use, so that the rotor core 10 can be stably and reliably connected with the rotor shaft, and the joints at the two ends of the whole rotor shaft can be conveniently and reliably connected and fixed.

The working principle of the embodiment is as follows: when the rotor shaft for the automobile is used, as shown in fig. 1-5, when the bearing is installed, the top block 8 only needs to be pressed to perform corresponding telescopic movement in the movable groove 101, and the limit ring 7 and the top block 8 perform safe and reliable fixing action on the bearing; meanwhile, the connection fixture block 5 is matched with the connection groove 1001 of the rotor core 10, so that the rotor core 10 can be stably and reliably connected with the rotor shaft, the contact area of the engine oil and the shaft body can be larger through the guide vanes 6 in a spiral structure, the engine oil and the shaft body are more fully and uniformly contacted when the rotor shaft rotates at a high speed, and the cooling of the rotor shaft is accelerated;

the above is the operation of the whole device, and the details which are not described in detail in this specification are well known to those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it should be noted that, in the present invention, unless otherwise explicitly specified or limited, the terms "set", "mounted", "connected", "fixed", and the like are to be interpreted broadly, and may be, for example, either fixedly connected or detachably connected; or indirectly through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art; it will be appreciated by those skilled in the art that modifications may be made to the above-described embodiments, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and the like which fall within the spirit and scope of the present invention may be resorted to.

Claims

1. A rotor shaft for an automobile comprises a first shaft body (1), a second shaft body (2), a third shaft body (3), a fourth shaft body (4), a connecting clamping block (5), guide vanes (6), a limiting ring (7), an ejector block (8), connecting studs (9) and a rotor iron core (10), and is characterized in that the lower end of the first shaft body (1) is connected with the limiting ring (7), the lower bottom surface of the limiting ring (7) is connected with the second shaft body (2), the lower end of the second shaft body (2) is connected with the third shaft body (3), the lower end of the third shaft body (3) is connected with the fourth shaft body (4), and the upper end of the first shaft body is provided with the connecting studs (9);

the inner part of the first shaft body (1) is provided with movable grooves (101), each movable groove (101) is internally provided with a top block (8), each top block (8) is movably arranged on the first shaft body (1) through the movable groove (101), and the outer side of the second shaft body (2) is provided with guide vanes (6);

the lower extreme of fourth axis body (4) is connected with connects fixture block (5), coupling groove (1001) have been seted up to rotor core's (10) inside, fourth axis body (4) are through connecting fixture block (5) and rotor core (10) looks joint.

2. The rotor shaft for the automobile as recited in claim 1, wherein the top end of the first shaft body (1) is fixed with the lower end of the connecting stud (9) in a matched manner, the bottom end of the first shaft body (1) is fixed with the middle position of the upper surface of the limiting circular ring (7) in a matched manner, the movable grooves (101) are symmetrically formed in two sides of the middle position of the first shaft body (1), the outer side of the connecting stud (9) is provided with a threaded groove, and the top end of the second shaft body (2) is connected to the lower bottom surface of the limiting circular ring (7).

3. The rotor shaft for the automobile as recited in claim 1, wherein the top end of the second shaft body (2) is fixed with the middle position of the lower bottom surface of the limiting ring (7) in a matching manner, the bottom end of the second shaft body (2) is connected with the top end of the third shaft body (3), and the outer side of the second shaft body (2) is fixedly provided with the guide vanes (6) in a matching manner.

4. The rotor shaft for the automobile as recited in claim 1, wherein the third shaft body (3) is integrally formed in a stepped structure, a transition section of the stepped structure is provided with a round corner, a middle position of a top end of the stepped structure is matched and fixed with a bottom end of the second shaft body (2), and a middle position of a bottom end of the stepped structure is matched and fixed with a top end of the fourth shaft body (4).

5. The rotor shaft for the automobile as recited in claim 1, wherein the number of the connecting blocks (5) is four, the four connecting blocks (5) are distributed at the lower end of the fourth shaft body (4) in a circumferential array, each connecting block (5) is fixedly connected to the outer side of the lower end of the fourth shaft body (4), and the connecting blocks (5) are adapted to the connecting grooves (1001).

6. The rotor shaft for the automobile as claimed in claim 1, wherein the guide vanes (6) are adapted to the second shaft body (2), the whole guide vanes (6) are of a spiral structure, the guide vanes (6) are fixedly connected to the outer surface of the second shaft body (2), the number of the connecting grooves (1001) is four, the connecting grooves (1001) are circumferentially arranged at the middle position of the rotor core (10), and the connecting fixture block (5) is clamped with the rotor core (10) through the connecting grooves (1001).

7. The rotor shaft for the automobile as recited in claim 1, wherein a return spring (801) is mounted at one end of each of the two top blocks (8), the return spring (801) and the top block (8) are matched with the movable groove (101), one end of the return spring (801) is matched and fixed with one side of the top block (8), the other end of the return spring (801) is matched and fixed with the inner side wall of the movable groove (101), the other side of each top block (8) is of an inclined surface structure, and each top block (8) is movably connected in the movable groove (101) through the return spring (801).