CN213341790U

CN213341790U - TC4 titanium alloy high-speed rotor sheath

Info

Publication number: CN213341790U
Application number: CN202022470560.7U
Authority: CN
Inventors: 蔡双凯
Original assignee: Baoji Juxinyuan New Material Co ltd
Current assignee: Baoji Juxinyuan New Material Co ltd
Priority date: 2020-10-31
Filing date: 2020-10-31
Publication date: 2021-06-01
Anticipated expiration: 2030-10-31

Abstract

The utility model discloses a TC4 titanium alloy high rotational speed rotor sheath this internal spiral radiating groove that is used for the rotor that is equipped with of sheath, left sheath and the right sheath of symmetry are cut apart into to the sheath body to outside the both terminal surfaces all outwards extend to have and be used for the spacing awl type ring of rotor left side sheath and right sheath butt joint department are provided with the helicitic texture who is used for both to connect. Spring pieces are embedded on the outer wall of the sheath body at intervals in the circumferential direction, and grooves matched with the spring pieces are formed in the outer wall surface of the left sheath. The sheath is divided into two parts which are connected in a detachable mode, so that the sheath can be assembled with the whole rotor conveniently and quickly, and the rotor can be maintained in the later stage conveniently. The spiral radiating groove that the sheath body inner wall was seted up in succession, and was spiral towards rotor direction of rotation, when the rotor was rotatory at a high speed, the air can be followed spiral radiating groove port and got into, circulates along spiral radiating groove orbit and in time takes away the heat that the rotor produced, effectively protects rotor and winding insulation coil's life.

Description

TC4 titanium alloy high-speed rotor sheath

Technical Field

The utility model relates to a rotor sheath technical field especially relates to TC4 titanium alloy high rotational speed rotor sheath.

Background

The motor rotor is a rotating part in a motor and is composed of a rotating shaft, an iron core coil winding and the like. The motor rotor is a rotating part in the motor, so that a rotor sheath is generally sleeved outside the motor rotor to protect the whole motor rotor. Under the action of high-speed rotation and magnetic field current, the rotor can generate high heat inside, if the heat is not dissipated in time, the problem of eddy current loss can be caused, especially, the insulating coil can be burnt out, the whole rotor and the motor are burnt out, and the service life of the motor is seriously influenced. And because the sheath and the rotor assembly's fastening nature for the dismantlement maintenance in rotor later stage is comparatively difficult.

Disclosure of Invention

To the problem that exists, the utility model aims at providing TC4 titanium alloy high rotational speed rotor sheath, and this sheath is cut apart into the symmetry and can be dismantled the two parts of connection, is convenient for assemble fast with the rotor is whole, and the later stage of also being convenient for simultaneously is to the rotor maintenance. The spiral radiating groove formed in the inner wall of the sheath body can timely take away heat generated by the rotor, and the service life of the rotor and the wound insulating coil of the rotor are effectively prolonged.

In order to achieve the above object, the utility model adopts the following technical scheme: TC4 titanium alloy high rotational speed rotor sheath, including the sheath body that has straight tubular structure, wherein, this internal heat radiation structure who is used for the rotor that is equipped with of sheath, the sheath body is cut apart into symmetrical left sheath and right sheath to outside the both outer end face all extend outward and be used for the spacing tapered ring of rotor, left sheath and right sheath butt joint department are provided with the detachable construction that is used for both to connect.

Preferably, the heat dissipation structure is a spiral heat dissipation groove which is continuously formed in the inner walls of the left sheath and the right sheath and is spiral towards the rotation direction of the rotor.

Preferably, the detachable structure comprises an external thread arranged on the outer wall of the left sheath and an internal thread arranged on the inner wall of the right sheath and matched with the external thread, and a limiting device for preventing the left sheath and the right sheath from loosening in a spiral mode is arranged at the joint of the left sheath and the right sheath.

Preferably, the limiting device comprises spring pieces which are embedded on the outer wall surface of the right sheath at intervals in the circumferential direction and extend to a certain distance out of the end part of the right sheath, and a groove matched with the spring pieces is formed in the outer wall surface of the left sheath.

The utility model has the advantages that: (1) the utility model provides a high rotational speed rotor sheath of TC4 titanium alloy with it is corrosion-resistant, this sheath is cut apart into the symmetry and can dismantle two parts of connection, is convenient for assemble fast with the rotor is whole, also is convenient for the later stage simultaneously to the rotor maintenance. (2) The spiral radiating groove that the sheath body inner wall was seted up in succession, and was spiral towards rotor direction of rotation, when the rotor was rotatory at a high speed, the air can be followed spiral radiating groove port and got into, circulates along spiral radiating groove orbit and in time takes away the heat that the rotor produced, effectively protects rotor and winding insulation coil's life.

Drawings

Fig. 1 is the overall structure diagram of the sheath body of the present invention.

Fig. 2 is a cross-sectional view of the present invention shown in fig. 1.

Fig. 3 is a left sheath structure view of the present invention.

Fig. 4 is a cross-sectional view of the present invention shown in fig. 3.

Fig. 5 is a structure view of the right sheath of the present invention.

Fig. 6 is a cross-sectional view of the present invention shown in fig. 5.

Fig. 7 is the structure view of the sheath body and the rotor assembly of the present invention.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following describes the technical solution of the present invention with reference to the accompanying drawings and embodiments.

The TC4 titanium alloy high-rotation-speed rotor sheath shown in the attached drawings 1-7 comprises a sheath body 1 with a straight-tube structure, wherein the sheath body 1 is tightly sleeved on the outer wall of a rotor 2 in a fastening mode and plays a role in protecting and limiting the rotor 2. The sheath body 1 made of the corrosion-resistant TC4 titanium alloy material can be used in severe environments such as strong corrosion. Because the rotor can produce great heat when circular telegram high-speed rotation, if the heat can't in time distribute, lead to the insulating layer destruction of the coil on the rotor, very easily cause the motor to burn out. Therefore, in order to solve the problem, the heat dissipation structure for the rotor 2 is arranged in the sheath body 1, so that heat generated by rotation of the rotor is dissipated in time, normal use of the insulating coil is protected, and the service life of the motor is prolonged.

In order to facilitate the rapid assembly of the sheath body 1 and the rotor 2, the sheath body 1 is divided into a left sheath 11 and a right sheath 12 which are symmetrical, and outer end faces of the left sheath and the right sheath extend outwards to form a conical ring 13 for limiting the rotor 2, the conical ring 13 is provided with a conical surface 131, two ends of the rotor 2 can be limited through the conical surface 131, the rotor 2 is clamped in the sheath body 1, and the problem that the assembly gap between the left sheath and the right sheath causes vibration during high-speed rotation is avoided. Meanwhile, in order to facilitate the connection assembly and the later maintenance of the left sheath 11 and the right sheath 12 and the rotor 2, a detachable structure for connecting the left sheath 11 and the right sheath 12 is arranged at the butt joint of the two.

Specifically, the heat dissipation structure is a spiral heat dissipation groove 101 continuously formed in the inner walls of the left sheath 11 and the right sheath 12 and spiraling toward the rotation direction of the rotor 2. When the rotor 2 rotates at a high speed, air enters from the port of the spiral radiating groove 101 and circulates along the track of the spiral radiating groove 101 to take away heat generated by the rotor 2 in time, so that the service life of the rotor 2 and the wound insulating coil thereof is effectively protected.

Specifically, detachable construction includes that the external screw thread 11a that sets up in left sheath 11 outer wall, and set up the internal thread 12a of this external screw thread 11a of cooperation in right sheath 12 inner wall, can fasten fast and dismantle left sheath 11 and right sheath 12 through the cooperation of helicitic texture to have higher connection fastening nature. In order to prevent the rotor 2 from being loosened by the screw due to the vibration during the long-time high-speed rotation, a limiting device for preventing the screw from being loosened is arranged at the joint of the left sheath 11 and the right sheath 12.

Specifically, stop device includes that the circumference interval inlays the spring leaf 3 at right sheath 12 outer wall, and extend to right sheath 12 tip outside certain distance, the outer wall of left sheath 11 is equipped with the cooperation the recess 11b of spring leaf 3. After the left sheath 11 and the right sheath 12 are screwed, the spring piece 3 is clamped in the groove 11b, so that the left sheath 11 and the right sheath 12 can be effectively prevented from loosening after being subjected to high-speed vibration, and the integrity with the rotor 2 is improved. Preferably, after the spring plate 3 is clamped in the groove 11b, the surface of the spring plate is flush with the outer wall surfaces of the left sheath 11 and the right sheath 12, so that the integral subsequent reassembling is facilitated.

The principle of the utility model is that: the utility model provides a high rotational speed rotor sheath of TC4 titanium alloy with it is corrosion-resistant, this sheath is cut apart into the symmetry and can dismantle two parts of connection, is convenient for assemble fast with rotor 2 is whole, also is convenient for the later stage simultaneously to rotor 2 maintenance. The spiral radiating groove 101 that just face 2 direction of rotation spirals of rotor is seted up in succession to 1 inner wall of sheath body, and when 2 high-speed rotations of rotor, the air can get into from spiral radiating groove 101 port, circulates along spiral radiating groove 101 orbit and in time takes away the heat that rotor 2 produced, effectively protects rotor 2 and winding insulation coil's life.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

The TC4 titanium alloy high-rotation-speed rotor sheath comprises a sheath body (1) with a straight-tube structure, wherein a heat dissipation structure for a rotor (2) is arranged in the sheath body (1), the sheath body (1) is divided into a left sheath (11) and a right sheath (12) which are symmetrical, tapered rings (13) used for limiting the rotor (2) extend outwards from the outer end faces of the left sheath (11) and the right sheath (12), and a detachable structure used for connecting the left sheath (11) and the right sheath (12) is arranged at the butt joint of the left sheath (11) and the right sheath (12).
2. The TC4 titanium alloy high speed rotor sheath of claim 1, wherein: the heat dissipation structure is a spiral heat dissipation groove (101) which is continuously formed in the inner walls of the left sheath (11) and the right sheath (12) and is spiral towards the rotation direction of the rotor (2).
3. The TC4 titanium alloy high speed rotor sheath of claim 2, wherein: the detachable structure comprises an external thread (11a) arranged on the outer wall of the left sheath (11) and an internal thread (12a) arranged on the inner wall of the right sheath (12) and matched with the external thread (11a), and a limiting device for preventing the left sheath (11) and the right sheath (12) from being screwed and loosened is arranged at the joint of the left sheath (11) and the right sheath (12).
4. The TC4 titanium alloy high speed rotor sheath of claim 3, wherein: stop device includes that the circumference interval inlays spring leaf (3) at right sheath (12) outer wall, and extend to certain distance outside right sheath (12) tip, left side sheath (11) outer wall is equipped with the cooperation recess (11b) of spring leaf (3).