CN218134992U

CN218134992U - Permanent magnet high-speed electric spindle for drilling machine

Info

Publication number: CN218134992U
Application number: CN202222261657.6U
Authority: CN
Inventors: 冼红军; 李惠方; 靳一宸
Original assignee: Henan Kechuang Numerical Control Machine Co ltd
Current assignee: Henan Kechuang Numerical Control Machine Co ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2022-12-27
Anticipated expiration: 2032-08-26

Abstract

The utility model discloses a permanent magnet high-speed electric main shaft for a drilling machine, which comprises a shell and a shaft body, wherein the shaft body is arranged in the shell, a rotor is fixed at the periphery of the middle part of the shaft body, a permanent magnet stator is fixedly arranged on the inner wall surface of the shell, and the permanent magnet stator is covered on the periphery of the rotor; the utility model discloses in, through the surface welding inlet nozzle and the air outlet at the casing, and the filter mantle is settled to the inlet nozzle internalization, when the heat dissipation, through penetrating the inlet nozzle with the form of pipeline with cold wind, make cold wind flood the axis body and have the one end of wind blade, this in-process, through starting the electricity main shaft, make the axis body drive the synchronous rotation of a plurality of wind blades on its surface in high-speed rotatory rotation process, make a plurality of wind blades blow cold wind to the air outlet, until the heat that produces can be derived by the air outlet between rotor and permanent magnet stator, compare the radiating mode who sets up the air inlet in the casing, can lead to the cold wind that gets into the casing, increase the radiating effect of electricity main shaft.

Description

Permanent magnet high-speed electric spindle for drilling machine

Technical Field

The utility model relates to a high-speed electric main shaft technical field especially relates to a permanent magnetism high-speed electric main shaft for drilling machine.

Background

An electric spindle is a new technology which integrates a machine tool spindle and a spindle motor into a whole and appears in the field of numerical control machines. The main shaft is a set of components and comprises the electric main shaft and accessories thereof, namely the electric main shaft, a high-frequency conversion device, an oil mist lubricator, a cooling device, a built-in encoder, a tool changer and the like. The transmission structure form of the spindle motor and the machine tool spindle which are combined into a whole enables the spindle part to be relatively independent from a transmission system and an integral structure of the machine tool, so that the spindle unit can be made into a spindle unit, commonly called as an electric spindle, and has the characteristics of high rotating speed, high precision, low noise and more suitability for spray lubrication of a structure with a locking notch on an inner ring.

Patent No. CN216176667U discloses a high-speed self-cooling electric main shaft, which comprises a housin, install the main shaft in the casing, the main shaft has cup jointed the rotor part outward, and the stator part has cup jointed outward to the rotor part, the terminal block is installed at one side top of casing, the end cover is installed to the bottom of casing, and outside the bottom of main shaft extended to the casing, and installed collet nut, the end cover cup joints on the main shaft, the utility model discloses a be provided with a plurality of screws, be convenient for install the electric main shaft on different altitude positions, simultaneously, be convenient for sealed, prevent that the dust from getting into.

According to the scheme, the air inlet is formed in the surface of the shell to implement self-cooling heat dissipation, but the active air supply structure and the air guide structure are not arranged in the scheme, so that the electric spindle mainly depends on the entering of outside air to dissipate heat, the heat dissipation requirement is difficult to meet in the high-speed rotation process of the electric spindle, and the high-efficiency heat dissipation and cooling of the electric spindle are not facilitated.

Therefore, the permanent magnet high-speed electric spindle for the drilling machine has the advantages of efficient air cooling and heat dissipation, and further solves the problems in the background art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, and provides a permanent magnet high-speed electric spindle for a drilling machine.

In order to realize the purpose, the utility model adopts the following technical scheme: the utility model provides a permanent magnetism high-speed electric main shaft for drilling machine, includes casing and axis body, the internally mounted of casing has the axis body, and the periphery at axis body middle part is fixed with the rotor, casing internal face fixed mounting has permanent magnet stator, and permanent magnet stator cup joints in the periphery of rotor, install the bearing between casing and the axis body, the end cover is installed through the bolt to the terminal surface of casing, the outer surface welding of casing has the air inlet nozzle, and one side welding of air inlet nozzle has the air outlet nozzle, the inboard port department of air inlet nozzle pegs graft and has the filter mantle, and the upper portion side welding of filter mantle has the lug, the inboard port department of air inlet nozzle sets up flutedly, the lug embedding of filter mantle sets up at the recess inboardly, the inside activity of filter mantle is provided with the fender dish, and the surface of fender dish has seted up the through-hole, the one end welding that the axis body is close to the air inlet nozzle has the wind-guiding blade, the bottom welding of casing has the mount pad.

As a further description of the above technical solution: the periphery of the air outlet nozzle is covered with a metal cap, and a circular filter screen is welded on the end face of the metal cap.

As a further description of the above technical solution: a plurality of lugs are welded on the side face of the upper portion of the end cover, and a plurality of grooves are formed in the positions, corresponding to the lugs, of the inner side ports of the air inlet nozzles.

As a further description of the above technical solution: the wind-guiding blade is provided with a plurality ofly, and a plurality of wind-guiding blades encircle and set up in the surface a week of axis body.

As a further description of the above technical solution: the both ends of casing all are through the bolt fastening has the end cover, and the surface of one of them end cover corresponds the axis body and has seted up the hole that passes.

As a further description of the above technical solution: the cross-section of mount pad is T type structure, and the surface of mount pad has seted up the bolt hole.

As a further description of the above technical solution: a plurality of through holes are uniformly formed in the surface of the blocking disc, and the side face of the blocking disc is in contact with the inner wall face of the filter cover.

The utility model discloses following beneficial effect has:

the utility model discloses in, through surface welding air inlet nozzle and air outlet nozzle at the casing, and the filter mantle is settled to the air inlet nozzle internalization, when the heat dissipation, through with cold wind with the form of pipeline injection air inlet nozzle, make cold wind flood the one end that the axis body has wind-guiding blade, in this process, through starting electric main shaft, make the axis body drive its surperficial a plurality of wind-guiding blade synchronous rotations in high-speed rotatory process of rotating, make a plurality of wind-guiding blades blow cold wind to air outlet nozzle, until the heat that produces can be derived by air outlet nozzle between rotor and permanent magnet stator, compare the radiating mode who sets up the air inlet in the casing, can lead to the cold wind that gets into the casing, increase electric main shaft's radiating effect, promote electric main shaft's work efficiency, and simultaneously, through installing the filter mantle embedding in the inboard port department of air inlet nozzle, make the lug embedding of filter mantle side welded in the recess of the inboard corresponding air inlet nozzle of air inlet nozzle, when cold wind gets into air inlet nozzle, cold wind at first passes the inboard lower part of baffle plate's through-hole entering air nozzle, the filter screen is blockked by the dust of filter screen lower part in the well doping again, the effect of heat dissipation is blockked, avoid the dust of heat protection to invade, the life of dust of electric main shaft, the extension of the dust of the extension.

Drawings

Fig. 1 is a schematic structural view of a permanent magnet high-speed electric spindle for a drilling machine according to the present invention;

fig. 2 is a schematic view of a shaft body structure of a permanent magnet high-speed electric spindle for a drilling machine according to the present invention;

fig. 3 is the structural schematic diagram of the filter cover of the permanent magnet high-speed electric spindle for the drilling machine of the present invention.

Illustration of the drawings:

1. a housing; 2. a shaft body; 3. a bearing; 4. wind guide blades; 5. a rotor; 6. a permanent magnet stator; 7. a mounting base; 8. an end cap; 9. an air inlet nozzle; 10. an air outlet nozzle; 11. a groove; 12. a filter housing; 13. a bump; 14. a catch tray; 15. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

According to the utility model discloses an embodiment provides a permanent magnetism high speed electric main shaft for drilling machine.

Referring to the drawings and the detailed description, the present invention will be further described, as shown in fig. 1-3, a permanent magnet high-speed electric spindle for a drilling machine according to an embodiment of the present invention comprises a housing 1 and an axle body 2, the axle body 2 is installed inside the housing 1, a rotor 5 is fixed on the periphery of the middle portion of the axle body 2, a permanent magnet stator 6 is fixedly installed on the inner wall surface of the housing 1, the permanent magnet stator 6 covers the periphery of the rotor 5, a bearing 3 is installed between the housing 1 and the axle body 2, an end cover 8 is installed on the end surface of the housing 1 through a bolt, an air inlet nozzle 9 is welded on the outer surface of the housing 1, an air outlet nozzle 10 is welded on one side of the air inlet nozzle 9, a filter 12 is inserted into the inner side port of the air inlet nozzle 9, a projection 13 is welded on the upper side of the filter 12, a groove 11 is formed on the inner side of the air inlet nozzle 9, the projection 13 of the filter 12 is embedded inside the groove 11, a baffle disc 14 is movably arranged in the filter cover 12, a through hole 15 is arranged on the surface of the baffle disc 14, a wind guide blade 4 is welded at one end of the shaft body 2 close to the wind inlet nozzle 9, a mounting seat 7 is welded at the bottom of the shell 1, cold wind is injected into the wind inlet nozzle 9 in a pipeline mode to enable the cold wind to be filled at one end of the shaft body 2 with the wind guide blade 4, in the process, the shaft body 2 is enabled to drive the wind guide blades 4 on the surface to synchronously rotate in the high-speed rotating process by starting the electric main shaft, so that the wind guide blades 4 blow the cold wind to the wind outlet nozzle 10 until heat generated between the rotor 5 and the permanent magnet stator 6 can be guided out by the wind outlet nozzle 10, the cold wind entering the shell 1 is guided, the heat dissipation effect of the electric main shaft is improved, the working efficiency of the electric main shaft is improved, and meanwhile, the filter cover 12 is embedded and installed at the port of the inner side of the wind inlet nozzle 9, the convex block 13 welded on the side surface of the filter cover 12 is enabled to be embedded into the groove 11 correspondingly formed in the inner side of the air inlet nozzle 9, when cold air enters the air inlet nozzle 9, the cold air firstly passes through the through hole 15 of the baffle disc 14 to enter the lower part of the inner side of the air inlet nozzle 9, and then dust doped in the cold air is blocked by the filter screen at the lower part of the air inlet nozzle 9, so that the heat dissipation effect is guaranteed, meanwhile, the invasion of the dust is avoided, and the service life of the electric spindle is prolonged;

in one embodiment, a metal cap covers the periphery of the air outlet nozzle 10, and a circular filter screen is welded on the end face of the metal cap, so that dust can be prevented from entering the metal cap on the periphery of the air outlet nozzle 10.

In one embodiment, a plurality of projections 13 are welded on the side surface of the upper part of the end cover 8, a plurality of grooves 11 are formed in the end opening part of the inner side of the air inlet nozzle 9 corresponding to the projections 13, and the projections 13 and the grooves 11 are connected in an embedded manner, so that the filter cover 12 can be movably mounted conveniently, and the filter cover is convenient to disassemble and assemble.

In one embodiment, the plurality of air guide blades 4 are arranged, and the plurality of air guide blades 4 are arranged around the outer surface of the shaft body 2, so that cold air can be guided through the air guide blades 4, and heat can be discharged conveniently.

In one embodiment, both ends of the housing 1 are fixed with end covers 8 through bolts, and a surface of one of the end covers 8 is provided with a through hole corresponding to the shaft body 2, thereby being beneficial to sealing the housing 1 through the end covers 8.

In one embodiment, the cross section of the mounting seat 7 is a T-shaped structure, and the surface of the mounting seat 7 is provided with a bolt hole, so that the device can be conveniently fixed through the mounting seat 7.

In one embodiment, a plurality of through holes 15 are uniformly formed in the surface of the baffle disc 14, and the side surface of the baffle disc 14 is in contact with the inner wall surface of the filter cover 12, so that cold air can be shunted and blocked by the baffle disc 14 and the through holes 15, and dust filtration is facilitated.

The working principle is as follows:

when in use, the port of the cold air pipeline is firstly connected with the air inlet nozzle 9 of the shell 1, then the metal cap with the filter screen is covered on the periphery of the air outlet nozzle 10, when in heat dissipation, cold air is injected into the air inlet nozzle 9 in a pipeline form to cause the cold air to be filled at one end of the shaft body 2 with the air guide blades 4, in the process, the shaft body 2 is caused to drive the plurality of air guide blades 4 on the surface to synchronously rotate in the high-speed rotating process by starting the electric main shaft, so that the plurality of air guide blades 4 blow the cold air to the air outlet nozzle 10 until the heat generated between the rotor 5 and the permanent magnet stator 6 can be guided out by the air outlet nozzle 10, the cold wind that gets into casing 1 leads, increase the radiating effect of electricity main shaft, promote the work efficiency of electricity main shaft, and simultaneously, install in the inboard port department of air inlet nozzle 9 through embedding filter cover 12, make filter cover 12 side welded lug 13 embedding correspond in the recess 11 of seting up in air inlet nozzle 9 inboard, when cold wind gets into air inlet nozzle 9, cold wind at first passes the through-hole 15 of keeping off dish 14 and gets into the inboard lower part of air inlet nozzle 9, the dust of adulteration in to the cold wind is blockked by the filter screen of air inlet nozzle 9 lower part again, avoid the invasion of dust when guaranteeing radiating effect, be favorable to prolonging the life of electricity main shaft.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions on some technical features, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. A permanent magnetism high speed electric main shaft for drilling machine, includes casing (1) and axis body (2), its characterized in that: the utility model discloses a wind turbine blade assembly, including casing (1), axle body (2), and the periphery at axle body (2) middle part is fixed with rotor (5), casing (1) internal face fixed mounting has permanent magnet stator (6), and permanent magnet stator (6) cup joints the periphery at rotor (5), install bearing (3) between casing (1) and axle body (2), end cover (8) are installed through the bolt to the terminal surface of casing (1), casing (1) outer surface welding has air inlet nozzle (9), and one side welding of air inlet nozzle (9) has air outlet nozzle (10), it has filter mantle (12) to peg graft in air inlet nozzle (9) inboard port department, and the upper portion side welding of filter mantle (12) has lug (13), recess (11) have been seted up in air inlet nozzle (9) inboard port department, lug (13) embedding of filter mantle (12) sets up at recess (11) inboardly, the inside activity of filter mantle (12) is provided with fender dish (14), and the surface that keeps off dish (14) has seted up through-hole (15), axle body (2) are close to the one end department of air inlet nozzle (9) has the welding of wind guide seat (4), and the welding of casing (7) has the wind guide seat (7).

2. The permanent magnet high-speed electric spindle for a drilling machine according to claim 1, wherein: the periphery of the air outlet nozzle (10) is covered with a metal cap, and the end face of the metal cap is welded with a circular filter screen.

3. The permanent magnet high-speed electric spindle for a drilling machine according to claim 1, wherein: a plurality of lugs (13) are welded on the side face of the upper portion of the end cover (8), and a plurality of grooves (11) are formed in the positions, corresponding to the lugs (13), of the inner side port of the air inlet nozzle (9).

4. The permanent magnet high-speed electric spindle for a drilling machine according to claim 1, wherein: the air guide blades (4) are arranged in a plurality of numbers, and the air guide blades (4) are arranged on the outer surface of the shaft body (2) in a surrounding mode for a circle.

5. The permanent magnet high-speed electric spindle for a drilling machine according to claim 1, wherein: both ends of casing (1) all are fixed with end cover (8) through the bolt, and the surface of one of them end cover (8) corresponds axis body (2) and has seted up and has passed the hole.

6. The permanent magnet high-speed electric spindle for a drilling machine according to claim 1, wherein: the cross section of the mounting seat (7) is of a T-shaped structure, and a bolt hole is formed in the surface of the mounting seat (7).

7. The permanent magnet high-speed electric spindle for a drilling machine according to claim 1, wherein: a plurality of through holes (15) are uniformly formed in the surface of the baffle disc (14), and the side surface of the baffle disc (14) is in contact with the inner wall surface of the filter cover (12).