CN115555592A - Main shaft rear portion waterproof dustproof construction - Google Patents
Main shaft rear portion waterproof dustproof construction Download PDFInfo
- Publication number
- CN115555592A CN115555592A CN202110747931.8A CN202110747931A CN115555592A CN 115555592 A CN115555592 A CN 115555592A CN 202110747931 A CN202110747931 A CN 202110747931A CN 115555592 A CN115555592 A CN 115555592A
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- peripheral surface
- groove
- gap
- shape
- ring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
Abstract
The invention relates to a main shaft rear part waterproof and dustproof structure, which comprises: the body is provided with a first containing groove, a ring convex rib, a first end surface and a ring groove; a rotating shaft provided with a second screw part and a first peripheral surface; a precision nut having a second end face; a back cover and the precision nut are provided with a first gap which is in an L-shaped circuitous path shape, and the back cover is provided with a first sleeving part, a second containing groove, a third end surface and a fourth end surface; a second sleeving part is concavely arranged on the sealing piece, the second sleeving part is used for accommodating the first sleeving part, a second gap is arranged between the second sleeving part and the first sleeving part, the second gap is communicated with the first gap, and the second gap is in a U-shaped circuitous path shape; the second engaging portion has a protruding portion.
Description
Technical Field
The present invention relates to a spindle rear waterproof and dustproof structure, and more particularly to a spindle rear waterproof and dustproof structure, in which a first gap is formed between a rear cover and a precision nut, the first gap is in an L-shaped winding path shape, a second gap is formed between a first engaging portion and a second engaging portion, the second gap is in a U-shaped winding path shape, and the probability of liquid entering the spindle rear waterproof and dustproof structure from the second gap and the first gap is reduced.
Background
As known previously, this is also a prior patent application filed by the same applicant, and a common structure of a spindle rear part waterproof and dustproof structure is disclosed in taiwan patent no: 107110781, certificate number: i647034, chinese application number: 201810386354.2, patent name: the waterproof dustproof construction in main shaft rear portion, this patent structure lies in: a first body 10, the first body 10 is assembled on various tool machines or various processing mother machines, one end of the first body is provided with a first end surface 100, a first containing groove 11 is arranged in the first body, the first containing groove 11 is in a through groove shape, and a first nesting part 12 is arranged at the first end surface 10; a rotating shaft 20, the rotating shaft 20 being pivotally installed in the first accommodating slot 11 of the first body 10, the rotating shaft 20 being fast rotated in the first accommodating slot 11, one end of the rotating shaft 20 being provided with a first screwing portion 21, the first screwing portion 21 being in a shape of external thread; a first precision nut group 40, wherein the first precision nut group 40 is screwed at the first screwing part 21, and the first precision nut group 40 comprises a first precision nut 41; the first precision nut 41 has a second end face 410, the second end face 410 is aligned with the first end face 100, a small gap is formed between the second end face 410 and the first end face 410, the first precision nut 41 has a second screw portion 411, the second screw portion 411 is used for the first screw portion 21 to pass through and screw, the second screw portion 411 is in an internal thread shape, a second engaging portion 412 is annularly arranged at the second end face 410, the second engaging portion 412 is engaged with the first engaging portion 12 of the first body 10, so that the gap between the second end face 410 and the first end face 100 is in a circuitous path shape.
However, the conventional spindle rear waterproof and dustproof structure has the following disadvantages:
1. as shown in fig. 8, the second engaging portion 412 is engaged with the first engaging portion 12, so that only the gap between the second end surface 410 and the first end surface 100 is in a winding path shape, and the winding path is formed by only the first body 10 and the first precision nut 41, which is monotonous and easy to enter.
2. Referring to fig. 2 of taiwan gazette, the first precision nut set 40 is different from a common precision nut structure, the first precision nut set 40 needs to be additionally machined and customized, so that the second end surface 410 is surrounded by the second engaging portion 412, and the cost of the first precision nut set 40 is greatly increased.
In view of the above disadvantages of the conventional structure, the inventor of the present invention has made a product of a waterproof and dustproof structure for the rear portion of a spindle, which can solve the conventional disadvantages, by making use of manufacturing, production and design experiences in related industries for many years.
Disclosure of Invention
The main purposes of the invention are as follows: in the spindle rear waterproof and dustproof structure of the invention, the first gap is arranged between the rear cover and the precision nut, the first gap is in an L-shaped circuitous path shape, the second gap is arranged between the first sleeving part and the second sleeving part, the second gap is in a U-shaped circuitous path shape, and the probability of damage caused by the fact that the liquid or the cutting fluid enters the spindle rear waterproof and dustproof structure from the second gap and the two circuitous paths of the first gap is greatly reduced.
In order to achieve the above object, the present invention provides a spindle rear part waterproof and dustproof structure, which is characterized in that: it includes:
the device comprises a body, wherein a first containing groove is arranged in the body, the first containing groove penetrates through the body, the first containing groove is in a circular groove shape, one end of the body is convexly provided with a ring convex rib, the ring convex rib is in a circular ring shape, the ring convex rib is provided with a first end surface, the first end surface is in a plane shape, and the peripheral surface of the ring convex rib is annularly provided with a ring groove;
a rotating shaft pivoted in the first containing groove, the rotating shaft being provided with a second screw part which is in a shape of external thread, and the outer peripheral surface of the rotating shaft being provided with a first peripheral surface;
a ring body, which is sleeved at the ring groove;
a precision nut assembled or screwed with the rotating shaft, the precision nut rotating with the rotating shaft, the precision nut screwed at the second screw part, one end of the precision nut having a second end face;
the rear cover is assembled with the body, the ring body and the precision nut are hidden in the rear cover, the precision nut is pivoted in the body and the rear cover, a first gap is formed between the rear cover and the precision nut, the first gap is in an L-shaped circuitous path shape, one end of the rear cover is provided with a first sleeving part, the section of the first sleeving part is slightly in a step-shaped convex block shape, the peripheral surface of the first sleeving part is sequentially provided with a second peripheral surface, a third peripheral surface and a fourth peripheral surface from inside to outside in an encircling manner, the diameter of the second peripheral surface is greater than that of the third peripheral surface, and the diameter of the third peripheral surface is greater than that of the fourth peripheral surface;
the rear cover is provided with a second accommodating groove which penetrates through the rear cover, the second accommodating groove is in a circular groove shape, the rotating shaft penetrates into the second accommodating groove, a third end surface and a fourth end surface are arranged at the position, facing the body, of the second accommodating groove, the third end surface is aligned with the first end surface, a gap is slightly formed or does not exist between the third end surface and the first end surface, the fourth end surface is aligned with the second end surface, and part of path of the first gap is located between the fourth end surface and the second end surface;
the sealing piece is assembled with the rotating shaft, the rear cover part is hidden in the sealing piece, one end of the sealing piece is concavely provided with a second sleeving part, the second sleeving part is used for accommodating the first sleeving part, a second gap is arranged between the second sleeving part and the first sleeving part and communicated with the first gap, the second gap is in a U-shaped circuitous path shape, the section of the second sleeving part is matched with the first sleeving part, and the section of the second sleeving part is in a step-shaped groove shape;
the inner peripheral surface of the second nesting portion is sequentially provided with a fifth peripheral surface, a sixth peripheral surface and a seventh peripheral surface from outside to inside, the diameter of the fifth peripheral surface is greater than that of the sixth peripheral surface, the diameter of the sixth peripheral surface is greater than that of the seventh peripheral surface, the fifth peripheral surface is aligned with the second peripheral surface, the sixth peripheral surface is aligned with the third peripheral surface, the seventh peripheral surface is aligned with the fourth peripheral surface, and partial paths of the second gap are positioned between the second peripheral surface and the fifth peripheral surface, between the third peripheral surface and the sixth peripheral surface and between the fourth peripheral surface and the seventh peripheral surface;
the second sleeve part is provided with a protruding part which is accommodated in the second accommodating groove, the protruding part is positioned between the first peripheral surface and the second accommodating groove, and part of the path of the second gap is positioned between the outer peripheral surface of the protruding part and the inner peripheral surface of the second accommodating groove.
The main effects of the invention are as follows: the first gap is arranged between the rear cover and the precision nut, the first gap is in an L-shaped circuitous path shape, the second gap is arranged between the first sleeving part and the second sleeving part, the second gap is in a U-shaped circuitous path shape, and the probability of damage caused by the fact that the liquid or the cutting fluid enters the interior of the waterproof and dustproof structure at the rear part of the main shaft from the second gap and the two circuitous paths of the first gap is greatly reduced. The precision nut is a common precision nut structure, and is not required to be specially customized, and compared with a spindle rear waterproof and dustproof structure such as Taiwan patent, the cost for manufacturing the spindle rear waterproof and dustproof structure is reduced.
Drawings
Fig. 1 is an exploded perspective view of the spindle rear part waterproof and dustproof structure of the present invention.
Fig. 2 is a side view of a rear cover of the water and dust proof structure of the rear part of the main shaft of the present invention.
Fig. 3 isbase:Sub>A cross-sectional view taken atbase:Sub>A-base:Sub>A of fig. 2 of the present invention.
Fig. 4 is a side view of the seal of the waterproof and dustproof structure at the rear of the main shaft of the present invention.
Fig. 5 is a cross-sectional view at B-B of fig. 4 of the present invention.
Fig. 6 is a perspective combination view of the waterproof and dustproof structure of the rear part of the main shaft of the present invention.
Fig. 7 is a top view of the water and dust proof structure of the rear part of the main shaft of the present invention.
Fig. 8 is a cross-sectional view at C-C of fig. 7 of the present invention.
Fig. 9 is an enlarged view of the invention at D of fig. 8.
Fig. 10 is an enlarged sectional view of the second embodiment of the present invention.
Fig. 11 is an enlarged sectional view of the third embodiment of the present invention.
Fig. 12 is an enlarged sectional view of the fourth embodiment of the present invention.
Detailed Description
Referring first to fig. 1 to 9, fig. 1 is an exploded perspective view ofbase:Sub>A rear spindle waterproof and dustproof structure of the present invention, fig. 2 isbase:Sub>A side view ofbase:Sub>A rear cover 50 of the rear spindle waterproof and dustproof structure of the present invention, fig. 3 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 2 of the present invention, fig. 4 isbase:Sub>A side view ofbase:Sub>A sealing member 70 of the rear spindle waterproof and dustproof structure of the present invention, fig. 5 isbase:Sub>A sectional view taken along line B-B of fig. 4 of the present invention, fig. 6 isbase:Sub>A perspective combined view of the rear spindle waterproof and dustproof structure of the present invention, fig. 7 isbase:Sub>A top view of the rear spindle waterproof and dustproof structure of the present invention, fig. 8 isbase:Sub>A sectional view taken along line C-C of fig. 7 of the present invention, fig. 9 is an enlarged view taken along line D of fig. 8 of the present invention, and the present invention relates tobase:Sub>A rear spindle waterproof and dustproof structure, which includes:
a main body 10, the main body 10 is assembled on various tool machines or various machining mother machines, a first accommodating slot 11 is arranged in the main body 10, the first accommodating slot 11 penetrates through the main body 10, the first accommodating slot 11 is in a circular groove shape, one end of the main body 10 is convexly provided with a ring convex rib 12, the ring convex rib 12 is in a circular ring shape, the ring convex rib 12 is provided with a first end surface 13, the first end surface 13 is in a plane shape, the peripheral surface of the ring convex rib 12 is annularly provided with a ring groove 14, one end of the main body 10 is provided with a plurality of first screw thread parts 15, and the plurality of first screw thread parts 15 are in a spaced ring shape arrangement by taking the first accommodating slot 11 as an axis;
a rotating shaft 20, the rotating shaft 20 is pivotally installed in the first accommodating groove 11, the rotating shaft 20 is in a fast rotating shape, at least one set of bearing components is installed between the rotating shaft 20 and the first accommodating groove 11, one end of the rotating shaft 20 is provided for various tool sets, the rotating shaft 20 is provided with a second screwing part 21, the second screwing part 21 is in a male screw shape, and the outer peripheral surface of the rotating shaft 20 is provided with a first peripheral surface 22;
a ring body 30, the ring body 30 is sleeved at the ring groove 14, the ring body 30 is tightly matched with the ring groove 14, the ring body 30 is in a circular shape, and the ring body 30 is in a soft material structure;
a precision nut 40, the precision nut 40 and the rotating shaft 20 are assembled or screwed together, the precision nut 40 rotates with the rotating shaft 20, the precision nut 40 is screwed at the second screwing part 21, one end of the precision nut 40 is provided with a second end surface 41, and the second end surface 41 is planar;
a rear cover 50, please refer to fig. 2 and 3, the rear cover 50 is fixedly disposed with the body 10, the ring body 30 and the precision nut 40 are hidden in the rear cover 50, the precision nut 40 is pivotally disposed in the body 10 and the rear cover 50, the rear cover 50 and the precision nut 40 have a first gap 80, the first gap 80 is in an L-shaped winding path shape, one end of the rear cover 50 is provided with a first engaging portion 51, the cross section of the first engaging portion 51 is slightly in a step shape, the outer peripheral surface of the first engaging portion 51 is sequentially provided with a second peripheral surface 52, a third peripheral surface 53 and a fourth peripheral surface 54 from inside to outside, the diameter of the second peripheral surface 52 is greater than that of the third peripheral surface 53, the diameter of the third peripheral surface 53 is greater than that of the fourth peripheral surface 54, a first groove is annularly disposed between the second peripheral surface 52 and the third peripheral surface 53, the first groove 531 is in an annular groove shape, the outer diameter of the first groove is less than that of the third groove, the outer diameter of the third groove 53 is less than that of the fourth peripheral surface 54, the second groove 541 is less than that of the third groove 541, the first groove 531, the fourth groove 541 is less than that of the third groove 541, and the second groove 541 are disposed between the third groove 541, and 541 are less than that of the third groove 541, and 541, the second groove 541;
the rear cover 50 is provided with a second accommodating groove 55, the second accommodating groove 55 penetrates through the rear cover 50, the second accommodating groove 55 is in a circular groove shape, the rotating shaft 20 penetrates through the second accommodating groove 55, a third end surface 56 and a fourth end surface 57 are arranged at a position of the second accommodating groove 55 facing the body 10, the third end surface 56 and the fourth end surface 57 have a height difference, the third end surface 56 and the fourth end surface 57 are parallel, the third end surface 56 is aligned with the first end surface 13, a gap is slightly formed or does not exist between the third end surface 56 and the first end surface 13, the fourth end surface 57 is aligned with the second end surface 41, and part of the path of the first gap 80 is located between the fourth end surface 57 and the second end surface 41;
the rear cover 50 is provided with a plurality of first through grooves 58, each first through groove 58 is aligned with each first screw-fastening portion 15, the plurality of first through grooves 58 are arranged in a ring shape at intervals by taking the second containing groove 55 as an axis, and the number of the plurality of first through grooves 58 is matched with the number of the plurality of first screw-fastening portions 15;
a plurality of screw elements 60, wherein the screw elements 60 are in an external thread shape, the number of the screw elements 60 is matched with the number of the first screw parts 15 and the first through grooves 58, the screw elements 60 are arranged in the first through grooves 58 in a penetrating way and screwed with the first screw parts 15, so that the rear cover 50 is arranged on the body 10;
a sealing member 70, please refer to fig. 4 to 5, wherein the sealing member 70 is assembled with the rotating shaft 20, the rear cover 50 is partially hidden in the sealing member 70, the sealing member 70 is in a cylindrical shape or various shapes, the sealing member 70 is combined with the first peripheral surface 22, the sealing member 70 drives the rotating shaft 20 to rotate, the sealing member 70 is a pulley member, one end of the sealing member 70 is concavely provided with a second engaging portion 71, the second engaging portion 71 is provided for accommodating the first engaging portion 51, a second gap 81 is provided between the second engaging portion 71 and the first engaging portion 51, the second gap 81 is communicated with the first gap 80, the second gap 81 is in a U-shaped tortuous path, a cross section of the second engaging portion 71 is matched with the first engaging portion 51, and a cross section of the second engaging portion 71 is in a step shape;
a fifth circumferential surface 72, a sixth circumferential surface 73 and a seventh circumferential surface 74 are sequentially disposed around the inner circumferential surface of the second engaging portion 71 from the outside to the inside, the diameter of the fifth circumferential surface 72 is greater than that of the sixth circumferential surface 73, the diameter of the sixth circumferential surface 73 is greater than that of the seventh circumferential surface 74, the fifth circumferential surface 72 is aligned with the second circumferential surface 52, the sixth circumferential surface 73 is aligned with the third circumferential surface 53, the seventh circumferential surface 74 is aligned with the fourth circumferential surface 54, part of the path of the second gap 81 is located between the second circumferential surface 52 and the fifth circumferential surface 72, between the third circumferential surface 53 and the sixth circumferential surface 73, and between the fourth circumferential surface 54 and the seventh circumferential surface, the first groove 531 is located at the bend angle turn of the second gap 81, and the second groove 541 is located at the bend angle turn of the second gap 81;
the second engaging portion 71 has a protruding portion 75, the protruding portion 75 is received in the second receiving groove 55, the protruding portion 75 is located between the first peripheral surface 22 and the second receiving groove 55, and a part of the path of the second gap 81 is located between the outer peripheral surface of the protruding portion 75 and the inner peripheral surface of the second receiving groove 55;
the end face of the protruding portion 75 is provided with a fifth end face 76, the fifth end face 76 is aligned with the second end face 41, the fifth end face 76 is planar, a gap is slightly formed or does not exist between the fifth end face 76 and the second end face 41, and the fifth end face 76 and the fourth end face 57 are flush.
Referring to fig. 7 to 9, the rotating shaft 20 is pivotally disposed in the body 10, the ring body 30 is sleeved in the ring groove 14, the precision nut 40 is screwed with the second screwing portion 21, the rear cover 50 is assembled on the body 10, the precision nut 40 is hidden in the body 10 and the rear cover 50, the screwing member 60 is screwed in the first screwing portion 15 and the first through groove 58, so that the rear cover 50 is fixedly disposed at the end of the body 10, the rear cover 50 and the precision nut 40 have the first gap 80, the sealing member 70 is combined at the first peripheral surface 22, the sealing member 70 drives the rotating shaft 20 and the precision nut 40 to rotate synchronously, the second fitting portion 71 and the first fitting portion 51 have the second gap 81, and the second gap 81 and the first gap 80 greatly reduce the probability of each liquid entering the body 10.
Referring to fig. 10, fig. 10 is an enlarged sectional view of a second embodiment of the present invention, in this embodiment, the sealing member 70 may have a shorter length, and the sealing member 70 is not a pulley structure.
Referring to fig. 11, fig. 11 is an enlarged sectional view of the third embodiment of the present invention, in this embodiment, the second engaging portion 71 is not provided with the fifth circumferential surface 72, and the second circumferential surface 52 and the first groove 531 are exposed outside the sealing element 70.
Referring to fig. 12, fig. 12 is a cross-sectional enlarged view of the fourth embodiment of the present invention, in the present embodiment, the second engaging portion 71 is not provided with the fifth circumferential surface 72 and the sixth circumferential surface 73, and the second circumferential surface 52, the third circumferential surface 53 and the first groove 531 are exposed outside the sealing element 70.
The main shaft rear part waterproof and dustproof structure has the advantages that:
1. the rear cover 50 and the precision nut 40 have the first gap 80, the first gap 80 is in an L-shaped tortuous path shape, the second gap 81 is arranged between the first engaging portion 51 and the second engaging portion 71, the second gap 81 is in a U-shaped tortuous path shape, and the probability of damage caused by the liquid or the cutting fluid entering the interior of the spindle rear waterproof and dustproof structure through the second gap 81 and the second tortuous path of the first gap 80 is greatly reduced.
2. There is a relative alignment between the precision nut 40 and the rear cover 50, a relative alignment between the precision nut 40 and the sealing member 70, and a relative alignment between the rear cover 50 and the sealing member 70, that is, there is a structural relationship among the precision nut 40, the rear cover 50 and the sealing member 70, i.e., there is a better assembling structure.
3. Part of the path of the second gap 81 is located between the second peripheral surface 52 and the fifth peripheral surface 72, between the third peripheral surface 53 and the sixth peripheral surface 73, and between the fourth peripheral surface 54 and the seventh peripheral surface, so that part of the path of the second gap 81 has five corners, and the second gap 81 has a liquid-proof effect.
4. The first groove 531 is circumferentially disposed between the second peripheral surface 52 and the third peripheral surface 53, the second groove 541 is circumferentially disposed between the third peripheral surface 53 and the fourth peripheral surface 54, the first groove 531 is located at the corner bend of the second gap 81, the second groove 541 is located at the corner bend of the second gap 81, the first groove 531 and the second groove 541 are an accommodation space for temporarily storing the liquid or the cutting fluid entering from the outside, and the difficulty of the liquid or the cutting fluid entering the inside of the body 10 is increased.
5. The ring body 30 is provided, so that each liquid and each cutting fluid cannot enter the body 10 from the space between the body 10 and the rear cover 50 to the space between the first end surface 13 and the third end surface 56, if each liquid and each cutting fluid accidentally pass through the ring body 30, an L-shaped circuitous path is formed between the ring convex rib 12 and the rear cover 50, and the probability of each liquid or each cutting fluid entering the interior of the main shaft rear waterproof and dustproof structure can also be reduced.
6. The precision nut 40 is a general precision nut structure, and does not need to be customized, so as to reduce the cost of manufacturing the spindle rear waterproof and dustproof structure, compared with the spindle rear waterproof and dustproof structure such as the taiwan patent No. 107110781.
Therefore, the main shaft rear part waterproof and dustproof structure has industrial applicability, novelty and progress, can accord with the application requirements of the invention patent, and is applied legally.
Claims (10)
1. The utility model provides a waterproof dustproof construction in main shaft rear portion which characterized in that: it includes:
the device comprises a body, wherein a first containing groove is arranged in the body, the first containing groove penetrates through the body, the first containing groove is in a circular groove shape, one end of the body is convexly provided with a ring convex rib, the ring convex rib is in a circular ring shape, the ring convex rib is provided with a first end surface, the first end surface is in a plane shape, and the peripheral surface of the ring convex rib is annularly provided with a ring groove;
a rotating shaft pivoted in the first containing groove, the rotating shaft being provided with a second screw part which is in a shape of external thread, and the outer peripheral surface of the rotating shaft being provided with a first peripheral surface;
a ring body, which is sleeved at the ring groove;
a precision nut assembled or screwed with the rotating shaft, the precision nut rotating with the rotating shaft, the precision nut screwed at the second screw part, one end of the precision nut having a second end face;
the rear cover is assembled with the body, the ring body and the precision nut are hidden in the rear cover, the precision nut is pivoted in the body and the rear cover, a first gap is formed between the rear cover and the precision nut, the first gap is in an L-shaped circuitous path shape, one end of the rear cover is provided with a first sleeving part, the section of the first sleeving part is slightly in a step-shaped convex block shape, the peripheral surface of the first sleeving part is sequentially provided with a second peripheral surface, a third peripheral surface and a fourth peripheral surface from inside to outside in an encircling manner, the diameter of the second peripheral surface is greater than that of the third peripheral surface, and the diameter of the third peripheral surface is greater than that of the fourth peripheral surface;
the rear cover is provided with a second accommodating groove which penetrates through the rear cover, the second accommodating groove is in a circular groove shape, the rotating shaft penetrates into the second accommodating groove, a third end surface and a fourth end surface are arranged at the position, facing the body, of the second accommodating groove, the third end surface is aligned with the first end surface, a gap is slightly formed or does not exist between the third end surface and the first end surface, the fourth end surface is aligned with the second end surface, and part of path of the first gap is located between the fourth end surface and the second end surface;
the sealing piece is assembled with the rotating shaft, the rear cover part is hidden in the sealing piece, one end of the sealing piece is concavely provided with a second sleeving part, the second sleeving part is used for accommodating the first sleeving part, a second gap is arranged between the second sleeving part and the first sleeving part and communicated with the first gap, the second gap is in a U-shaped circuitous path shape, the section of the second sleeving part is matched with the first sleeving part, and the section of the second sleeving part is in a step-shaped groove shape;
the inner peripheral surface of the second nesting portion is sequentially provided with a fifth peripheral surface, a sixth peripheral surface and a seventh peripheral surface from outside to inside, the diameter of the fifth peripheral surface is greater than that of the sixth peripheral surface, the diameter of the sixth peripheral surface is greater than that of the seventh peripheral surface, the fifth peripheral surface is aligned with the second peripheral surface, the sixth peripheral surface is aligned with the third peripheral surface, the seventh peripheral surface is aligned with the fourth peripheral surface, and partial paths of the second gap are positioned between the second peripheral surface and the fifth peripheral surface, between the third peripheral surface and the sixth peripheral surface and between the fourth peripheral surface and the seventh peripheral surface;
the second sleeve part is provided with a protruding part which is accommodated in the second accommodating groove, the protruding part is positioned between the first peripheral surface and the second accommodating groove, and part of the path of the second gap is positioned between the outer peripheral surface of the protruding part and the inner peripheral surface of the second accommodating groove.
2. The spindle rear part waterproof and dustproof structure according to claim 1, characterized in that: wherein, the body is assembled on various machine tools or various processing mother machines.
3. The spindle rear part waterproof and dustproof structure according to claim 1, characterized in that: wherein, one end of the body is provided with a plurality of first screw parts which are arranged in a ring shape at intervals by taking the first containing groove as an axis; the rear cover is provided with a plurality of first penetrating grooves, each first penetrating groove is aligned to each first screw joint part, the first penetrating grooves are arranged in a spaced ring shape by taking the second containing groove as an axis, and the number of the first penetrating grooves is matched with that of the first screw joint parts; the rear cover is provided with a plurality of screw elements, the screw elements are in an external thread shape, the number of the screw elements is matched with the number of the first screw parts and the first through grooves, the screw elements penetrate through the first through grooves and are screwed at the first screw parts, and the rear cover is assembled on the body.
4. The spindle rear part waterproof and dustproof structure according to claim 1, characterized in that: wherein, the rotating shaft is fast rotating, at least one set of bearing components is arranged between the rotating shaft and the first accommodating groove, and one end of the rotating shaft is provided for various types of tools.
5. The spindle rear part waterproof and dustproof structure according to claim 1, characterized in that: wherein, the ring body is tightly matched with the ring groove, the ring body is in a circular shape, and the ring body is in a soft material structure.
6. The spindle rear part waterproof and dustproof structure according to claim 1, characterized in that: wherein, the second end surface is planar.
7. The spindle rear part waterproof and dustproof structure according to claim 1, characterized in that: a first groove is annularly arranged between the second circumferential surface and the third circumferential surface, the first groove is in a shape of an annular groove, the outer diameter of the first groove is smaller than that of the third circumferential surface, a second groove is annularly arranged between the third circumferential surface and the fourth circumferential surface, the second groove is in a shape of an annular groove, and the outer diameter of the second groove is smaller than that of the fourth circumferential surface; the first groove is located at the bend-path turning position of the second gap, and the second groove is located at the bend-path turning position of the second gap.
8. The spindle rear part waterproof and dustproof structure according to claim 1, characterized in that: wherein, this third terminal surface and this fourth terminal surface have the difference in height, and this third terminal surface and this fourth terminal surface are the looks parallel form.
9. The spindle rear part waterproof and dustproof structure according to claim 1, characterized in that: wherein, should seal and establish the piece and be cylinder form, should seal and establish the piece and combine in this first week face department, should seal and establish the piece and drive this axis of rotation and rotate, should seal and establish the piece and be a pulley spare.
10. The spindle rear part waterproof and dustproof structure according to claim 1, characterized in that: the end face of the protruding part is provided with a fifth end face, the fifth end face is aligned with the second end face, the fifth end face is planar, a gap is slightly formed or does not exist between the fifth end face and the second end face, or the fifth end face and the fourth end face are flush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110747931.8A CN115555592A (en) | 2021-07-02 | 2021-07-02 | Main shaft rear portion waterproof dustproof construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110747931.8A CN115555592A (en) | 2021-07-02 | 2021-07-02 | Main shaft rear portion waterproof dustproof construction |
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| Publication Number | Publication Date |
|---|---|
| CN115555592A true CN115555592A (en) | 2023-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110747931.8A Pending CN115555592A (en) | 2021-07-02 | 2021-07-02 | Main shaft rear portion waterproof dustproof construction |
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| Country | Link |
|---|---|
| CN (1) | CN115555592A (en) |
-
2021
- 2021-07-02 CN CN202110747931.8A patent/CN115555592A/en active Pending
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