Motor shaft structure capable of axially and telescopically moving

Abstract

The utility model relates to the technical field of motor accessories, in particular to a motor shaft structure capable of axially stretching and retracting, which comprises a stator and a rotor, an embedded mounting seat is fixedly assembled on the outer side surface of the stator, and a lateral electric control regulating valve is mounted in the embedded mounting seat. According to the motor shaft structure capable of axially and telescopically moving, the telescopic translation of the rotor is controlled through the telescopic action of the lateral electric control regulating valve, so that the size and the weight of the whole motor driving section can be greatly reduced, and the motor shaft structure can be conveniently mounted and used on a new energy automobile; stretching is controlled through internal hydraulic pressure, stretching can be adjusted, and the internal heat dissipation effect can be improved; when the whole motor shaft is assembled, the manufacturing and assembling process is optimized, a plurality of working procedures are reduced, and the production efficiency is improved in actual motor production and assembling.

Description

Technical Field

[0001] The utility model relates to the technical field of motor accessories, in particular to a motor shaft structure capable of axially telescopic movement. Background Art

[0002] In order to support the autopilot system of new energy vehicles and provide the force for vehicle driving and steering, the motor shaft needs to be telescopically adjusted. In order to realize the length adjustment of the existing motor shaft, it is necessary to install a transmission wheel at the front end of the traditional solid motor shaft to transmit the torque force externally. Such a structure not only increases the axial length and weight of the motor, but also is not conducive to the requirements of small volume and light weight for autopilot on new energy vehicles. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is that installing a transmission wheel at the front end of the solid motor shaft to transmit torque externally not only increases the axial length and weight of the motor, but also is not conducive to the requirements of small volume and light weight for autopilot on new energy vehicles.

[0004] A motor shaft structure capable of axially telescopic movement includes a stator and a rotor. An embedded mounting seat is fixedly assembled on the outer side surface of the stator. A lateral electric control regulating valve is installed inside the embedded mounting seat. A horizontal through hole for assembling the rotor is opened inside the stator. A lateral adjusting groove is opened on the outer side surface of the rotor. An internal closing ring protruding into the lateral adjusting groove is provided on the inner side surface of the horizontal through hole. Side guide flow channels for communicating the lateral electric control regulating valve with the lateral adjusting groove are staggeredly opened on both side walls of the internal closing ring.

[0005] An internal adjusting chamber is opened inside the embedded mounting seat.

[0006] The lateral electric control regulating valve includes an internal piston inserted inside the internal adjusting chamber and an external electric control strut fixed on the side surface of the embedded mounting seat for controlling the internal piston.

[0007] The side guide flow channel on one side of the internal closing ring is communicated with the inner bottom surface of the internal adjusting chamber, and the side guide flow channel on the other side of the internal closing ring is communicated with the inner top surface of the internal adjusting chamber.

[0008] Parallel guide planes are provided on both the upper and lower surfaces of the outer end of the rotor.

[0009] Copper heat dissipation cover shells for enhancing internal heat dissipation are provided on the outer side surface of the stator at positions corresponding to the side guide flow channels.

[0010] The beneficial effects of the utility model are:

[0011] (1) The motor shaft structure capable of axial telescopic movement of the present utility model controls the telescopic translation of the rotor through the telescopic action of the lateral electric control regulating valve, which can greatly reduce the volume and weight of the entire motor drive section and facilitate installation and use on new energy vehicles;

[0012] (2) By controlling the telescopic movement through internal hydraulic pressure, not only can the telescopic movement be adjusted, but also the internal heat dissipation effect can be improved;

[0013] (3) The entire motor shaft optimizes the manufacturing and assembly process during assembly, reduces multiple processes, and improves production efficiency in the actual motor production and assembly;

[0014] (4) The entire device has a simple structure, convenient control, and high stability. Description of the Drawings

[0015] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0016] Figure 1 is a schematic structural view of the present utility model.

[0017] Figure 2 is a schematic internal structural view of the present utility model. Detailed Embodiment

[0018] The present utility model will now be further described in detail in conjunction with the drawings. These drawings are all simplified schematic views, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0019] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0020] Figure 1 and Figure 2 As shown in, a motor shaft structure capable of axial telescopic movement includes a stator 1 and a rotor 2. An embedded mounting seat 3 is fixedly assembled on the outer side surface of the stator 1. A lateral electric control regulating valve 4 is installed inside the embedded mounting seat 3. A horizontal through hole for assembling the rotor is opened inside the stator 1. A lateral adjustment groove 5 is opened on the outer side surface of the rotor 2. An internal closing ring 6 protruding towards the inside of the lateral adjustment groove 5 is provided on the inner side surface of the horizontal through hole. Side guide flow channels 7 for communicating the lateral electric control regulating valve 4 with the lateral adjustment groove 5 are staggeredly opened on both side walls of the internal closing ring 6.

[0021] The embedded mounting base 3 is internally provided with an internal adjustment chamber.

[0022] To cooperate with external control, the lateral electric control regulating valve 4 includes an internal piston 41 inserted inside the internal adjustment chamber and an external electric control strut 42 fixed on the side of the embedded mounting base 3 for controlling the internal piston 41.

[0023] The external electric control strut 42 controls the internal piston 41 to slide inside the internal adjustment chamber by telescoping, so as to squeeze the hydraulic oil at both ends of the internal piston 41 inside the internal adjustment chamber into both sides of the internal closed loop 6 through the side guide flow channel 7. In this way, the telescoping of the rotor 2 can be adjusted. When the external electric control strut 42 controls the internal piston 41 to squeeze downward, the side guide flow channel 7 connected to the inner bottom surface of the internal adjustment chamber will squeeze the injected hydraulic oil into the left side of the internal closed loop 6, and the hydraulic oil on the right side of the internal closed loop 6 will be pumped into the upper section inside the internal adjustment chamber through the side guide flow channel 7, so that the rotor will contract to the left; otherwise, it will extend to the right.

[0024] To cooperate with fixed connection, one side of the side guide flow channel 7 of the internal closed loop 6 is connected to the inner bottom surface of the internal adjustment chamber, and the other side of the side guide flow channel 7 of the internal closed loop 6 is connected to the inner top surface of the internal adjustment chamber.

[0025] To cooperate with lateral assembly limit, guiding planes 8 parallel to each other are provided on the upper and lower surfaces of the outer end of the rotor 2.

[0026] To improve the heat dissipation effect, copper heat dissipation cover shells 9 for enhancing internal heat dissipation are provided on the outer side surface of the stator 1 corresponding to the positions of the side guide flow channels 7.

[0027] The side guide flow channel 7 is opened on the outer side surface of the stator 1 and then fixed on the outer opening of the side guide flow channel 7 through the copper heat dissipation cover shell 9 to form a closed flow channel. In this way, when the internal piston 41 telescopes, the pressure on both sides of the internal closed loop 6 can be normally controlled to adjust the telescoping of the rotor 2.

[0028] Enlightened by the above ideal embodiments according to the present invention, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A motor shaft structure capable of axial telescopic movement, comprising a stator (1) and a rotor (2), characterized in that: An embedded mounting seat (3) is fixedly mounted on the outer surface of the stator (1), a lateral electric control regulating valve (4) is mounted inside the embedded mounting seat (3), a transverse through hole for mounting the rotor is provided inside the stator (1), a lateral regulating groove (5) is provided on the outer surface of the rotor (2), an inner side surface of the transverse through hole is provided with an internal closed ring (6) protruding toward the inside of the lateral regulating groove (5), and lateral guide flow channels (7) for connecting the lateral electric control regulating valve (4) and the lateral regulating groove (5) are staggeredly provided on both side walls of the internal closed ring (6).

2. The motor shaft structure capable of axial telescopic movement according to claim 1, characterized in that: An internal adjustment chamber is provided inside the embedded mounting seat (3).

3. The motor shaft structure capable of axial telescopic movement according to claim 1, characterized in that: The lateral electrically controlled regulating valve (4) comprises an internal piston (41) inserted into an internal regulating chamber and an external electrically controlled support rod (42) fixed on a side of an embedded mounting seat (3) for controlling the internal piston (41).

4. The motor shaft structure capable of axial telescopic movement according to claim 2, characterized in that: The lateral material guide channel (7) on one side of the internal closed loop (6) is connected to the inner bottom surface of the internal adjustment chamber, and the lateral material guide channel (7) on the other side of the internal closed loop (6) is connected to the inner top surface of the internal adjustment chamber.

5. The motor shaft structure capable of axial telescopic movement according to claim 1, characterized in that: The upper and lower surfaces of the outer end of the rotor (2) are both provided with mutually parallel guide planes (8).

6. The motor shaft structure capable of axial telescopic movement according to claim 1, characterized in that: The outer surface of the stator (1) is provided with a copper heat dissipation cover (9) at a position corresponding to the lateral material guide channel (7) for improving internal heat dissipation.

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