CN210985903U

CN210985903U - Brushless electric grinder for outer rotor spindle

Info

Publication number: CN210985903U
Application number: CN202020012411.3U
Authority: CN
Inventors: 林宗平
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-05
Filing date: 2020-01-05
Publication date: 2020-07-10
Anticipated expiration: 2030-01-05

Abstract

The utility model discloses an external rotor spindle brushless electric grinder, including stator axle core fixing base, stator axle core, stator, permanent magnet, rotor spindle, bearing, first shell, coil, second shell, tail-hood, line hole and swivel sleeve, first shell passes through the one end of screw thread fixed mounting at the second shell, the one end at first shell is installed in the embedding of stator axle core fixing base, and the junction installs the bearing, the center of stator axle core fixing base cup joints and is fixed with stator axle core, cup joint fixed mounting has the stator on the stator axle core, and the wire winding is connected on the stator, the stator axle core passes through the bearing and is connected with the rotor spindle rotation, and the inner wall of rotor spindle is provided with the permanent magnet; the brushless electric grinder for the outer rotor spindle utilizes the rotor spindle as a grinding spindle, has three bearing structures, and leads of wire holes in a stator shaft core fixing seat are externally connected, so that the brushless electric grinder has the advantages of large torsion, small size, high rigidity and convenience in use.

Description

Brushless electric grinder for outer rotor spindle

Technical Field

The utility model relates to an electric mill technical field specifically is a brushless electric mill of external rotor main shaft.

Background

The existing electric grinder has the defects of brush motor type and brushless motor type, the adopted inner rotor structure is that the rotor is arranged in the inner part, the stator is arranged outside, the brush motor type electric brush is easy to lose volume and has insufficient torsion when the volume is small, the brushless inner rotor type cannot be made smaller due to processing influence, the inner rotor structure has the defects of small volume and small axis and rigidity bottom when the volume is small, and the like. Therefore, it is necessary to design a brushless electric grinder for an outer rotor spindle.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a brushless electric mill of external rotor main shaft to solve the problem that proposes among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides an outer rotor spindle brushless electric mill, includes stator axle core fixing base, stator axle core, stator, permanent magnet, rotor spindle, bearing, first shell, coil, second shell, tail-hood, line hole and commentaries on classics cover, first shell passes through the one end of screw thread fixed mounting at the second shell, the one end at first shell is installed in the embedding of stator axle core fixing base, and the junction installs the bearing, the center of stator axle core fixing base is cup jointed and is fixed with the stator axle core, cup joint fixed mounting on the stator axle core has the stator, and the wire winding has the coil on the stator, the stator axle core passes through the bearing and is connected with the rotor spindle rotation, and the inner wall of rotor spindle is provided with the permanent magnet.

Furthermore, three holes are formed in the stator shaft core fixing seat, penetrate out of the stator and the coil to be connected with an external electronic speed regulator.

Furthermore, one side of the output end of the rotor spindle is fixedly connected with a rotating sleeve through threads, and a grinding head is fixedly mounted on the rotating sleeve.

Furthermore, the other end of the second shell is fixedly provided with a tail cover through threads, and the tail part of the tail cover is provided with a wire hole.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is: the brushless electric grinder for the outer rotor spindle utilizes the rotor spindle as a grinding spindle, has three bearing structures, and leads of wire holes in a stator shaft core fixing seat are externally connected, so that the brushless electric grinder has the advantages of large torsion, small size, high rigidity and convenience in use.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall plane structure of the present invention;

fig. 2 is a cross-sectional view of the overall structure of the present invention;

in the figure: 1. a stator shaft core fixing seat; 2. a stator shaft core; 3. a stator; 4. a permanent magnet; 5. a rotor spindle; 6. a bearing; 7. a first housing; 8. a coil; 9. a second housing; 10. a tail cover; 11. a wire hole; 12. and (4) rotating the sleeve.

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. 1-2, the present invention provides a technical solution: a brushless electric grinder for an outer rotor spindle comprises a stator spindle core fixing seat 1, a stator spindle core 2, a stator 3, a permanent magnet 4, a rotor spindle 5, a bearing 6, a first shell 7, a coil 8, a second shell 9, a tail cover 10, a thread hole 11 and a rotating sleeve 12, wherein the first shell 7 is fixedly arranged at one end of the second shell 9 through threads, the other end of the second shell 9 is fixedly provided with the tail cover 10 through threads, the tail part of the tail cover 10 is provided with the thread hole 11 for connecting wires conveniently, the stator spindle core fixing seat 1 is embedded and arranged at one end of the first shell 7, the bearing 6 is arranged at the joint, the stator spindle core 2 is fixedly sleeved at the center of the stator spindle core fixing seat 1, the stator 3 is fixedly arranged on the stator spindle core 2 in a sleeved mode, the coil 8 is wound on the stator 3, three holes are formed in the stator spindle core fixing seat 1, the stator 3 and the coil 8 penetrate out of, the speed regulation is convenient, the stator shaft core 2 is rotationally connected with the rotor spindle 5 through the bearing 6, the inner wall of the rotor spindle 5 is provided with the permanent magnet 4, one side of the output end of the rotor spindle 5 is fixedly connected with the rotating sleeve 12 through threads, and the rotating sleeve 12 is fixedly provided with a grinding head for grinding; the utility model discloses a, utilize rotor spindle 5 as the grinding main shaft, three bearing 6 structure, the 11 lead wires in opening hole are external in stator shaft core fixing base 1, and it is big to accomplish torsion, small, high rigidity.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an outer rotor spindle brushless electric mill, includes stator axle core fixing base (1), stator axle core (2), stator (3), permanent magnet (4), rotor spindle (5), bearing (6), first shell (7), coil (8), second shell (9), tail-hood (10), line hole (11) and commentaries on classics cover (12), its characterized in that: first shell (7) are through the one end of screw thread fixed mounting at second shell (9), the one end at first shell (7) is installed in the embedding of stator axle core fixing base (1), and the junction installs bearing (6), the center of stator axle core fixing base (1) is cup jointed and is fixed with stator axle core (2), cup joint fixed mounting on stator axle core (2) and have stator (3), and around having connect coil (8) on stator (3), stator axle core (2) rotate with rotor spindle (5) through bearing (6) and are connected, and the inner wall of rotor spindle (5) is provided with permanent magnet (4).

2. The external rotor spindle brushless electric grinder of claim 1, wherein: three holes are formed in the stator shaft core fixing seat (1) and penetrate through the stator (3) and the coil (8) to be connected with an external electronic speed regulator.

3. The external rotor spindle brushless electric grinder of claim 1, wherein: one side of the output end of the rotor spindle (5) is fixedly connected with a rotating sleeve (12) through threads, and a grinding head is fixedly mounted on the rotating sleeve (12).

4. The external rotor spindle brushless electric grinder of claim 1, wherein: the other end of the second shell (9) is fixedly provided with a tail cover (10) through threads, and the tail part of the tail cover (10) is provided with a line hole (11).