CN210867310U

CN210867310U - Active heat dissipation type eddy current brake

Info

Publication number: CN210867310U
Application number: CN201922168287.XU
Authority: CN
Inventors: 徐志国
Original assignee: Nantong Aerospace Machinery And Electronics Automatic Control Co ltd
Current assignee: Nantong Aerospace Machinery And Electronics Automatic Control Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-06-26
Anticipated expiration: 2029-12-06

Abstract

The utility model relates to an initiative heat dissipation formula eddy current brake, a serial communication port, include: the self-cooling armature comprises a rotor (100), a bearing gland (200), a front end cover (300), a self-cooling armature (400), a coil (500) and a stator (600); the rotor (100) and the rotating shaft are connected into a whole through keys, the stator (600) is arranged in the rotor (100), and the rear end of the stator (600) is respectively connected with the self-radiating armature (400) and the rear end cover; the front end cover (300) and the stator (600) clamp, mount and fix the self-radiating armature (400); the rotor (100) is located between the self-radiating armature (400) and the stator (600); the coil (500) is positioned on the stator (600) and is wound in a stator (600) groove; front end housing (300) and bearing inner race interference fit, bearing gland (200) support the support bearing to spacing fixed front end housing (300).

Description

Active heat dissipation type eddy current brake

Technical Field

The utility model belongs to the technical field of automation equipment, concretely relates to initiative heat dissipation formula eddy current brake.

Background

Among the prior art, eddy current brake is two stator structures, for realizing giving off of rotor production heat, generally adopts to set up water cooling portion on the outside stator of rotor, and the rotor is at first to outside stator release heat, and outside stator is with heat transfer to water cooling portion again in order to realize the water-cooling, and the water of water cooling portion keeps flowing outward. However, in actual use, because the heat generated by the rotor is too large, even if the water flows in the water cooling part of the external stator to take away the heat, the heat inside the eddy current brake cannot be well and timely transferred to the outside, so that the stator coil inside the rotor can be burnt out due to the fact that the stator coil cannot be timely dissipated. However, in some fields tested by using a precision instrument, the eddy current brake is strictly prohibited to be cooled by using a water cooling mode, so that great limitation is caused to the heat dissipation of the eddy current brake.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an initiative heat dissipation formula eddy current brake to the outside stator that exists among the solution prior art adopts the water cooling portion can't be fine very timely with the inside heat transfer of eddy current brake to the outside, makes the stator coil that is located the rotor inside can burn out and adopt the water cooling mode heat dissipation to receive the technical problem of restriction because can not get timely heat dissipation.

In order to solve the above problem, the utility model relates to an initiative heat dissipation formula eddy current brake, a serial communication port, include: the self-cooling motor comprises a rotor, a bearing gland, a front end cover, a self-cooling armature, a coil and a stator;

the rotor and the rotating shaft are connected into a whole through a key, the rotating shaft is in interference fit with the bearing inner ring, the rotor is of an annular groove structure, the stator is arranged in the annular groove structure of the rotor, the front end of the stator is suspended in the annular groove structure of the rotor, and the rear end of the stator is respectively connected with the self-radiating armature and the rear end cover; the front end cover and the stator clamp the self-radiating armature and mount and fix the self-radiating armature, and the front end cover and the stator are provided with steps for placing and fixing the self-radiating armature;

the self-radiating armature is of a convex prism structure, and the rotor is positioned between the self-radiating armature and the stator; the coil is positioned on the stator and is wound in the stator slot; the front end cover is in interference fit with the bearing outer ring, and the bearing gland supports the bearing and is fixed at the front end cover in a limiting mode.

Furthermore, the front end cover is provided with a plurality of air inlets which are uniformly distributed on the circumference by taking the axis of the rotating shaft as the center, and the diameter of each air inlet is 20 mm; an air outlet is formed in one side, where the stator and the self-radiating armature are installed, of the stator, a plurality of air inlets are uniformly distributed on the circumference of the stator, with the axis of the rotating shaft as the center, and the diameter of each air inlet is 25 mm; the air inlet is closer to the center of rotation of the rotor, and the air outlet is further away from the center of rotation of the rotor. So that after the air in the eddy current brake is stirred when the rotor rotates, the air can be rapidly thrown out from the air outlet due to centrifugal force, and cold air can be supplemented from the air inlet in time. Because the cold air takes away the heat through the internal heating element (coil and armature) and then generates thermal expansion, the design of the air outlet is larger, and the hot air can flow out quickly.

Further, the convex prism-shaped structure on the self-radiating armature is set to be 10mm wide and 10mm deep in a plurality of channels, and the thickness of the end parts on two sides of the self-radiating armature is larger than 10 mm.

Further, the rotating shaft, the stator and the self-heat-dissipation armature are made of soft magnetic materials, an air gap between the rotor and the stator is 0.6mm, and an air gap between the rotor and the self-heat-dissipation armature is 0.6 mm.

The utility model discloses better solve the outside stator that exists among the prior art and adopted the not good technical problem of water cooling portion heat dissipation to and adopt the water cooling portion to receive the technical problem that the work occasion restricted, the utility model discloses an air inlet that sets up on the front end cover links up with the air outlet that sets up on the stator mutually, makes the air current flow through from the eddy current brake inside, produces from inhaling formula forced air cooling, and the eddy current brake rotor rotational speed is higher, and the forced air cooling effect is showing more, more is favorable to the efficient to dispel the heat to eddy current brake; meanwhile, the structure with the heat dissipation ribs is manufactured outside the self-heat dissipation armature, so that the self-heat dissipation performance of the eddy current brake is improved, and the heat dissipation effect of the eddy current brake is further improved.

Drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings of the embodiments will be briefly described below, and it is obvious that the drawings in the following description only relate to some embodiments of the present invention, and are not intended to limit the present invention.

Fig. 1 is a schematic structural view of the active heat dissipation eddy current brake of the present invention.

In the figure:

rotor 100, bearing cover 200, front end cap 300, self-radiating armature 400, coil 500, and stator 600.

Detailed Description

Fig. 1, discussed below, and the various embodiments used to describe the principles of the present invention in this patent document are by way of illustration only and should not be construed in any way to limit the scope of the invention. Those skilled in the art will understand that the principles of the present invention may be embodied in any suitable terminology for describing various embodiments in an active cooling eddy current brake. It should be understood that these are provided solely to aid in the understanding of the present specification, and their use and definition do not limit the scope of the present invention in any way. The use of the terms first, second, etc. to distinguish between objects having the same set of terms is not intended to represent a temporal order in any way, unless otherwise specifically stated. A group is defined as a non-empty group containing at least one element.

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention. It should be understood that the exemplary embodiments described herein should be considered in descriptive sense only and not for purposes of limitation. Descriptions of features or aspects within each exemplary embodiment should generally be considered as available for similar features or aspects in other exemplary embodiments.

As shown in figure 1, the active heat dissipation eddy current brake of the present invention according to an exemplary embodiment is schematically constructed,

in this embodiment, the active heat dissipation type eddy current brake is characterized by including: rotor 100, bearing gland 200, front end cover 300, self-radiating armature 400, coil 500, stator 600;

the rotor 100 and the rotating shaft are connected into a whole through a key, the rotating shaft is in interference fit with the bearing inner ring, the rotor is of an annular groove structure, the stator 600 is arranged in the annular groove structure of the rotor 100, the front end of the stator 600 is suspended in the annular groove structure of the rotor 100, and the rear end of the stator 600 is respectively connected with the self-radiating armature 400 and the rear end cover;

the front cover 300 and the stator 600 clamp the self-radiating armature 400 and mount and fix the self-radiating armature 400, and the front cover 300 and the stator 600 have steps for resting and fixing the self-radiating armature 400;

the self-radiating armature 400 has a convex prism structure, and the rotor 100 is located between the self-radiating armature 400 and the stator 600;

the coil 500 is positioned on the stator 600 and wound in a slot of the stator 600; the front end cover 300 is in interference fit with the bearing outer ring, and the bearing gland 200 supports against and supports the bearing and is fixed on the front end cover 300 in a limiting mode.

In this embodiment, the front end cover 300 is provided with a plurality of air inlets, the air inlets are uniformly distributed on the circumference of the front end cover with the axis of the rotating shaft as the center, and the diameter of each air inlet is 20 mm;

an air outlet is formed in one side, where the stator 600 and the self-radiating armature 400 are installed, of the stator, a plurality of air inlets are uniformly distributed on the circumference of the stator, with the axis of the rotating shaft as the center, and the diameter of each air inlet is 25 mm;

the air inlets and the air outlets are radially arranged in space, the air inlets are attached to the axle center, the air outlets are far away from the axle center, the air outlets are small, and the air outlets are large. The ventilation and heat dissipation are carried out in the eddy current brake by the aid of the ventilation of air.

In this embodiment, the convex prism structure on the self-radiating armature 400 is configured to have a plurality of channels with a width of 10mm and a depth of 10mm, and the thickness of the end portions on both sides of the self-radiating armature 400 is greater than 10 mm.

The outer end of the self-radiating armature 400 is turned with radiating ribs with the width of 10mm and the depth of 10mm, so that the radiating performance of the self-radiating armature 400 is improved. When the eddy current brake is loaded and works, the temperature of the self-radiating armature 400 is gradually increased, the heated outer part of the self-radiating armature 400 surrounds the air of the self-radiating armature 400, and the heated air forms wind upwards. The air can better flow through the convex prism structure, the good cooling effect of the self-cooling armature 400 is achieved, and the thickness of the end parts on the two sides is larger than 10 mm. The strength stability of the end part is more facilitated, and the structural stability is improved.

In this embodiment, the rotating shaft, the stator 600 and the self-radiating armature 400 are soft magnetic materials, an air gap between the rotor 100 and the stator 600 is 0.6mm, and an air gap between the rotor 100 and the self-radiating armature 400 is 0.6 mm. If the air gap is less than 0.6mm, the rotor is liable to be rubbed against the stator due to vibration and thermal deformation of the rotor during operation. An air gap greater than 0.6mm results in insufficient magnetic field strength and failure to achieve rated load damping. The rotating shaft, the stator 600 and the self-radiating armature 400 are made of soft magnetic materials, and are characterized in that the magnetic resistance is small, the magnetic field is generated immediately, and the magnetic field does not have magnetism when disappears, wherein the rotating shaft is made of 45# quenching and tempering materials.

In addition to the above embodiments, the present embodiment is based on the above preferred embodiments of the present invention, and the above descriptions are provided to enable workers to make various changes and modifications without departing from the technical spirit of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. An active cooling eddy current brake, comprising: the self-cooling armature comprises a rotor (100), a bearing gland (200), a front end cover (300), a self-cooling armature (400), a coil (500) and a stator (600);

the rotor (100) and the rotating shaft are connected into a whole through a key, the rotating shaft is in interference fit with the bearing inner ring, the rotor (100) is of an annular groove structure, the stator (600) is arranged in the annular groove structure of the rotor (100), the front end of the stator (600) is suspended in the annular groove structure of the rotor (100), and the rear end of the stator (600) is respectively connected with the self-radiating armature (400) and the rear end cover;

the front end cover (300) and the stator (600) clamp the self-radiating armature (400) and mount and fix the self-radiating armature (400), and the front end cover (300) and the stator (600) are provided with steps for placing and fixing the self-radiating armature (400);

the self-radiating armature (400) is of a convex prism structure, and the rotor (100) is positioned between the self-radiating armature (400) and the stator (600);

the coil (500) is positioned on the stator (600) and is wound in a stator (600) groove; the front end cover (300) is in interference fit with the bearing outer ring, and the bearing gland (200) supports against the bearing and is limited and fixed to the front end cover (300).

2. The active cooling eddy current brake of claim 1,

the front end cover (300) is provided with a plurality of air inlets which are uniformly distributed on the circumference by taking the axis of the rotating shaft as the center, and the diameter of each air inlet is 20 mm;

an air outlet is formed in one side, where the stator (600) and the self-radiating armature (400) are installed, the air inlet is formed in a circle, a plurality of air inlets are uniformly distributed on the circumference of the air inlet, and the diameter of each air inlet is 25 mm;

the air inlet is closer to the center of rotation of the rotor, and the air outlet is further away from the center of rotation of the rotor.

3. The active cooling eddy current brake of claim 1,

protruding prismatic structure on the armature (400) of dispelling the heat sets up to the wide 10mm of multichannel 10mm deeply, it is greater than 10mm from the tip thickness in heat dissipation armature (400) both sides.

4. The active cooling eddy current brake of claim 1,

the rotating shaft, the stator (600) and the self-heat-dissipation armature (400) are made of soft magnetic materials, an air gap between the rotor (100) and the stator (600) is 0.6mm, and an air gap between the rotor (100) and the self-heat-dissipation armature (400) is 0.6 mm.