CN202106037U

CN202106037U - Protecting cover structure for high-speed electric spindle

Info

Publication number: CN202106037U
Application number: CN2011200853491U
Authority: CN
Inventors: 汤秀清
Original assignee: Guangzhou Haozhi Electromechanical Co Ltd
Current assignee: Guangzhou Haozhi Electromechanical Co Ltd
Priority date: 2011-03-28
Filing date: 2011-03-28
Publication date: 2012-01-11
Anticipated expiration: 2021-03-28

Abstract

The utility model relates to a protecting cover structure for a high-speed electric spindle, in particular to a protecting cover structure for a high-speed electric spindle of a machining tool. At least two annular grooves (6) are arranged on the upper end surface at the inner part of a protecting cover (4), an annular convex plate (7) is arranged between every two annular grooves (6), the depths of the annular grooves (6) and the annular convex plates (7) are matched with that of a convex-concave groove at the lower end surface of a lower bearing blocking screw nut (8), an air inlet (1) is arranged at one side at the inner part of the protecting cover (4), and communicated with an axial groove (3) at the inner part of the protecting cover (4), and a copper plug (2) is arranged at an outlet at the tail end of the axial groove (3). The protecting cover structure for the high-speed electric spindle has good sealing performance and high precision, and is simple, long in service life and convenient for promotion and application.

Description

The protective cover structure that a kind of high-speed electric main shaft is used

Technical field

The utility model relates to a kind of machining equipment, specifically a kind ofly is used for the protective cover structure that the mechanical processing machine high-speed electric main shaft is used.

Background technology

In the prior art, the protective cover complex structure that electric main shaft is used causes production inconvenience and cost higher, and in addition, sealing property is relatively poor, advances dirt easily, and does not have the drifting dust function, and service life is shorter.

Summary of the invention

The utility model relates to the protective cover structure that a kind of high-speed electric main shaft is used, and it is simple in structure, good seal performance, and accuracy is high, and long service life is convenient to promote and use.

The utility model technical solution is at existing protective cover; On the basis of the screw hole on the protective cover; The utility model is provided with at least two annular recess particularly in the inner upper end face of protective cover; Be provided with annular boss between per two annular recess, annular recess all matches with the lower surface emboss pit of lower bearing locking nut with the degree of depth of annular boss; The inner side of protective cover has air admission hole, and air admission hole is connected with the inner axial groove of protective cover, and the end outlet place of groove is provided with the copper plug.

The screw screw hole of packing into was connected protective cover and fixes when the operation principle of the utility model was to use with body; Feed the drifting dust gas that meets pressure by air admission hole this moment, flows along the groove circumferencial direction, guaranteed that protective cover place air pressure is malleation; Can avoid cutting swarf, dust, cooling liquid to get into main shaft like this; Thereby improved the service life of main shaft. at the protective cover lateral aperture copper plug of packing into, can prevent that like this gas from producing leakage phenomenon, is designed with annular recess and annular boss at protective cover simultaneously; Form labyrinth sealing with the lower bearing locking nut, play the double containment effect.

The advantage of the utility model is:

1, simple in structure, be convenient to install and processing;

2, there is the drifting dust function in the lower bearing cover plate, can prolong the service life of main shaft;

3, double containment effect, good sealing effect are played in drifting dust and labyrinth sealing.

Description of drawings

Fig. 1 be the utility model look up the surface construction sketch map.

Fig. 2 is the profile construction sketch map of the utility model.

Fig. 3 is the organigram behind the installation lower bearing locking nut of the utility model.

The specific embodiment

According to Fig. 1, Fig. 2 and shown in Figure 3; The utility model is at existing protective cover 4; On the basis of the screw hole 5 on the protective cover; The inner upper end face of protective cover 4 is provided with 6 of 6, two annular recess of two annular recess and is provided with annular boss 7, and annular recess 6 all matches with the lower surface emboss pit of lower bearing locking nut 8 with the degree of depth of annular boss 7; Protective cover 4 inner sides have air admission hole 1, and air admission hole 1 is connected with protective cover 4 inner axial grooves 3, and the end outlet place of groove 3 is provided with copper plug 2.

Claims

1. protective cover structure that high-speed electric main shaft is used; It has comprised protective cover (4); Screw hole on the protective cover (5); The inner upper end face that it is characterized in that protective cover (4) is provided with at least two annular recess (6), is provided with annular boss (7) between per two annular recess (6), and annular recess (6) all matches with the lower surface emboss pit of lower bearing locking nut (8) with the degree of depth of annular boss (7); The inner side of protective cover (4) has air admission hole (1), and air admission hole (1) is connected with the inner axial groove (3) of protective cover (4), and the end outlet place of groove (3) is provided with copper plug (2).