TWI647035B - Spindle structure - Google Patents

Abstract

The present invention relates to a spindle structure, which includes: a system having a first receiving groove; a rotating shaft is pivotally disposed at the first receiving groove, the rotating shaft is provided with a second receiving groove, and the first circumference a first cover system is fixed at an end of the body, the first cover system is provided with a third receiving groove, and the third receiving groove is provided with one end of the rotating shaft protrudingly pivoted, The third receiving groove is provided with a second abutting edge, a first receiving chamber, a third abutting edge and a fourth abutting edge on the outer circumferential surface; the one-piece housing is provided with a second circumferential surface to be the first The circumferential surface is sleeved, the sealing member is provided with a first abutting surface to be opposite to the first abutting edge and the second abutting edge, and the sealing member protrudes from the annular convex portion to be received in the first In the chamber, the enclosing member is provided with a second abutting surface and a third abutting surface, the second abutting surface is opposite to the third abutting surface, and the third abutting surface is opposite to the fourth abutting surface. The second circumferential surface is provided with a ring groove; a gasket is received in the annular groove, the gasket has a sealing effect; at least one second cover system is fixed at the end of the rotating shaft, so that the sealing The design is subject to Two cover restricted from disengagement with the rotary shaft.

Description

Spindle structure

The invention relates to a spindle structure, in particular to a first circumferential surface of a sealing member of a spindle structure and a first circumferential surface of the rotating shaft, the gasket is received in the annular groove, and the gasket is sealed. Efficiently, the liquid is prevented from entering the inside of the main shaft structure from the second circumferential surface and the first circumferential surface, and the sealing member is restricted by the second cover body and cannot be disengaged from the rotating shaft, and is safe .

According to what we have previously known, the conventional spindle structure, which is also the patent application filed by us, such as Taiwan Patent Application No.: 104106770, certificate number: I574774, patent name: spindle structure, its structure is: a spindle structure The main shaft structure is a main body 10, and the main body 10 is mounted on a machine tool. The main body 10 is provided with a first receiving groove 11 which is perforated. A plurality of first screwing portions 12 are disposed at an end surface of the body 10, and the plurality of first screwing portions 12 are annularly arranged with the first pocket 11 as an axis; and a rotating shaft 20 is pivoted A bearing member is disposed between the rotating shaft 20 and the first receiving slot 11 , and a second receiving slot 21 is disposed at one end of the rotating shaft 20 , and the second receiving slot 21 is disposed at the first receiving slot 11 . For the tool receiving, the rotating shaft 20 is provided with a first circumferential surface 22 and a first abutting edge 23; a front cover 30 is fixed at the end of the body 10, and the front cover 30 is provided a third receiving slot 31, wherein the third receiving slot 31 is pivotally extended at one end of the rotating shaft 20, and the third receiving slot 31 is provided with a second ring to the outer peripheral surface. Edge 32, a first chamber 33 and the third abutment edge 34, the second abutment edge 32 of the first system and the rotary shaft abutment edge 2320 The third flange 34 is protruded from the end surface of the front cover 30 more than the second flange 32. The front cover 30 is provided with a plurality of through holes 35, each of which is aligned with each other. a screwing portion 12 having the same number as the first screwing portion 12, the plurality of through holes 35 being annularly arranged with the third pocket 31 as an axis; a plurality of screwing members 40, each of which is screwed The sleeve 40 is sleeved at each of the through holes 35 of the front cover 30 and screwed to each of the first screwing portions 12 of the body 10, so that the front cover 30 is fixed at the end surface of the body 10; 50. The sealing member 50 is provided with a second circumferential surface 51 fixed to the first circumferential surface 22 of the rotating shaft 20, so that the sealing member 50 is coupled to the rotating shaft 20. The rotation of the rotating shaft 20 is fast, and the second circumferential surface 51 and the first circumferential surface 22 are tightly fitted. The sealing member 50 is provided with a fourth abutment 52, and the fourth flange 52 is rotated. The first abutting edge 23 of the shaft 20 and the second abutting edge 32 of the front cover 30 abut against each other. The sealing member 50 protrudes from the annular convex portion 53. The annular convex portion 53 has a loop shape, and the annular convex portion has a ring shape. The portion 53 is received in the first chamber 33, and the annular protrusion 53 faces the outer peripheral surface The second chamber 531 and the first inclined surface 532 are disposed, and the second convex surface 533 is disposed on the inner circumferential surface of the annular convex portion 53. The second inclined surface 533 is disposed at the end surface of the annular convex portion 53. The fifth system is provided with a fifth abutment 54 which is disposed between the fourth abutment 52 and the fifth abutment 54. The fifth abutment 54 abuts against the third abutment 34. A third inclined surface 55 is formed on the end surface of the device 50. The third inclined surface 55 is outwardly oriented. The third inclined surface 55 is away from the annular convex portion 53. The third inclined surface 55 has an angle with the horizontal plane.

However, the conventional structure is missing in that the structure is required to apply a slight force to the sealing member 50 to the rotating shaft 20, so that the second circumferential surface 51 of the sealing member 50 and the first circumferential surface 22 is a tight fit structure, and the sealing member 50 is coupled with the rotating shaft 20, but the rotating shaft 20 and the sealing member 50 are subjected to power and rotate at the same time, and after being rotated for a long time, the sealing member 50 is likely to be naturally disengaged on the rotating shaft 20, that is, it will increase The liquids of the working hours, such as cutting fluid or coolant, enter the spindle structure from here, causing them to be missing.

In view of the above-mentioned lack of the conventional structure, the inventors have been engaged in the manufacturing, production and design experience of related industries for many years, and finally have a product that can solve the drawbacks of the spindle structure.

The sealing member in the conventional spindle structure is likely to be naturally disengaged on the rotating shaft, and the sealing member of the spindle structure of the present invention is restricted by the second cover and cannot be disengaged from the rotating shaft. It is impossible to set the piece apart from other factors and it is safe.

A spindle structure includes: a system having a first cavity; a rotating shaft is pivotally disposed at the first cavity, the rotating shaft is provided with a second cavity, a first circumferential surface, and a first a first cover system is fixed at the end of the body, the first cover system is provided with a third receiving groove, the third receiving groove is for the rotating shaft to protrude, and the third receiving groove is facing the outer peripheral surface The second ring is provided with a second abutting edge, a first chamber, a third abutting edge and a fourth abutting edge; and the first component is provided with a second circumferential surface to be sleeved with the first circumferential surface, the sealing The first abutting surface is opposite to the first abutting edge and the second abutting edge, and the enclosing member protrudes from the annular convex portion to be received in the first housing, and the enclosing member is Providing a second abutting surface and a third abutting surface, the second abutting surface is opposite to the third abutting surface, the third abutting surface is opposite to the fourth abutting surface, and the second circumferential surface is fastened a ring groove; a gasket is received in the ring groove, the gasket has a sealing effect; at least one second cover system is fixed at an end of the rotating shaft, so that the sealing member is subjected to the second cover Body limitation Shaft The phase is separated.

The second circumferential surface of the sealing member is opposite to the first circumferential surface of the rotating shaft, and the gasket is received in the annular groove, and the gasket has a sealing effect, so that each liquid is avoided by the first The inside of the main shaft structure enters between the two circumferential surfaces and the first circumferential surface. The first abutting surface of the sealing member is opposite to the first abutting edge of the rotating shaft and the second abutting edge of the first cover body, and the fourth abutting surface of the second cover body is limited to The first end surface of the enclosing member, that is, the enclosing member is disposed between the first abutting edge and the fourth abutting surface, and the enclosing member is restricted by the second cover body and cannot be When the rotating shaft phase is disengaged, the sealing member cannot be disengaged by other factors and is safe.

The structure and composition of the present invention are described in conjunction with the drawings and the drawings, and the following description is only for explaining the implementation of the present invention. For example, it is not intended to limit the invention in any way, and any modifications made by the present invention are still within the scope of the invention.

10‧‧‧ Ontology

11‧‧‧First slot

12‧‧‧First screwing

20‧‧‧Rotary axis

21‧‧‧Second capacity

22‧‧‧First week

23‧‧‧First arrival

24‧‧‧ First Joint Department

30‧‧‧First cover

31‧‧‧ third cavity

32‧‧‧Secondary

33‧‧‧First room

34‧‧‧ Third Marriage

35‧‧‧ fourth arrival

36‧‧‧Perforation

40‧‧‧ screw fittings

50‧‧‧Fittings

51‧‧‧second week

52‧‧‧ first face

53‧‧‧ ring convex

531‧‧‧Second room

532‧‧‧First bevel

533‧‧‧Second slope

54‧‧‧ second face

55‧‧‧ Third face

56‧‧‧ Ring groove

57‧‧‧ first end face

58‧‧‧ Missing slot

60‧‧‧Washers

70‧‧‧Second cover

71‧‧‧Fourth meet

The first figure is an exploded perspective view of the spindle structure of the present invention.

The second figure is a perspective view of the first cover of the spindle structure of the present invention.

The third drawing is a side view of the spindle structure sealing member of the present invention.

The fourth drawing is a cross-sectional view of the third drawing A-A of the present invention.

The fifth drawing is an enlarged view of the fourth drawing B of the present invention.

Fig. 6 is a perspective assembled view of the spindle structure of the present invention.

Figure 7 is a front elevational view of the spindle structure of the present invention.

Figure 8 is a cross-sectional view taken along line C-C of the seventh embodiment of the present invention.

The ninth drawing is an enlarged view of the eighth drawing D of the present invention.

Figure 10 is a perspective exploded view of a second embodiment of the present invention.

Figure 11 is an enlarged view of a second embodiment of the present invention.

Figure 12 is a perspective exploded view of a third embodiment of the present invention.

Figure 13 is an enlarged view of a third embodiment of the present invention.

First, please refer to the first to fifth figures. The first figure is an exploded perspective view of the spindle structure of the present invention, the second figure is a perspective view of the first cover body 30 of the spindle structure of the present invention, and the third figure is the spindle structure of the present invention. The fourth embodiment of the present invention is a cross-sectional view of the third embodiment of the present invention, and the fifth drawing is an enlarged view of the fourth embodiment of the present invention. The present invention relates to a spindle structure, which includes: The main body 10 is assembled on a machine tool. The main body 10 is provided with a first receiving groove 11 which is formed in a perforated shape. The first receiving groove 11 is formed in a penetrating shape. A plurality of first screwing portions 12 are disposed at the end faces of the plurality of first screwing portions 12, and the plurality of first screwing portions 12 are annularly arranged with the first receiving groove 11 as an axis; and a rotating shaft 20 is pivoted on the rotating shaft 20 A bearing member is disposed between the rotating shaft 20 and the first receiving slot 11 at the first receiving slot 11 , and a second receiving slot 21 is disposed at one end of the rotating shaft 20 , and the second receiving slot 21 is configured for a tool set The second housing 21 is in the shape of a circular groove, and the rotating shaft 20 The first peripheral surface 22 and the first abutting edge 23 are disposed. The first end of the rotating shaft 20 is provided with a plurality of first joint portions 24, and the plurality of first joint portions 24 are annularly arranged. The first cover 30 is fixed to the end of the main body 10, and the first cover 30 is fixed. There is a third receiving slot 31, wherein the third receiving slot 31 is pivotally disposed at one end of the rotating shaft 20, and the third receiving slot 31 is provided with a second abutting edge 32 and a first chamber to the outer peripheral surface. 33. The third abutting edge 34 and the fourth abutting edge 35 are flush with the first abutting edge 23 of the rotating shaft 20, and the first cavity 33 is in the shape of a concave ring groove. The third flange 34 protrudes from the end surface of the first cover 30 more than the second flange 32. The fourth flange 35 protrudes more than the third flange 34. At the end face of a cover 30, the first cover 30 is provided with a plurality of through holes 36, each of which is aligned with each first screw portion 12, and the number of the holes 36 is coupled to the first screw portion. The number of 12 is the same, and the plurality of through holes 36 are centered on the third pocket 31 The first screwing member 40 is sleeved on each of the through holes 36 of the first cover body 30 and screwed to each of the first screwing portions 12 to make the first The cover body 30 is fixed at the end surface of the body 10; the one cover member 50 is supplemented by the third, fourth and fifth figures, and the cover member 50 is provided with a second circumferential surface 51. The second circumferential surface 51 is sleeved with the first circumferential surface 22 of the rotating shaft 20, so that the sealing member 50 is assembled on the rotating shaft 20 and rotates rapidly with the rotating shaft 20, the second The circumferential surface 51 and the first circumferential surface 22 are in a tight fitting structure, and the sealing member 50 is provided with a first abutting surface 52, the first abutting surface 52 and the first abutting edge 23 and the second abutting The edge 32 is relatively positive, or the first abutment surface 52 is associated with the first abutment 23 of the rotating shaft 20 and the second abutment 32 of the first cover 30 The ring member 53 is formed in a ring shape, and the ring protrusion 53 is received in the first chamber 33. The ring protrusion 53 is formed in the first housing chamber 33. A second chamber 531 and a first inclined surface 532 are disposed on the outer circumferential surface, and the second convex surface 533 is disposed on the inner circumferential surface of the annular convex portion 53. The second inclined surface 533 is disposed on the annular convex portion 53. In the end surface, the sealing member 50 is provided with a second abutting surface 54 and a third abutting surface 55. The annular convex portion 53 is disposed between the first abutting surface 52 and the second abutting surface 54. The surface 54 is opposite to the third abutment 34. The third abutment surface 55 is opposite to the fourth abutment surface 35. The second abutment surface 54 is disposed on the first abutment surface 52 and the third abutment surface. The second surface 55 is protruded from the outer circumferential surface of the sealing member 50. The second circumferential surface 51 is provided with a ring groove 56. The annular groove 56 is defined by the annular groove 56. The first end surface 57 is disposed at an end surface of the sealing member 50, and the first end surface 57 is away from the annular convex portion 53, the second abutting surface 54 and the third abutting surface. 55 is disposed between the ring protrusion 53 and the first end surface 57, and the first end surface 57 is tapered, that is, The smaller the thickness of the enclosing member 50 toward the outer peripheral surface, the first end surface 57 has an angle with the horizontal plane, and the first end surface 57 is provided with a notch 58 which is in the shape of a concave ring groove. The notch 58 has a V-shaped groove shape; a gasket 60 is received in the annular groove 56 of the sealing member 50, and the gasket 60 is used for the sealing member 50 and the sealing member 50. The rotating shaft 20 is assembled, the gasket 60 has a sealing effect, the gasket 60 is in the form of a soft body, the gasket 60 is in the shape of a circular body, and the gasket 60 has an X-shaped cross section; at least a second The cover body 70 is fixed to the end of the rotating shaft 20, and the sealing member 50 and the second cover 70 are coupled to the rotating shaft 20 and fast with the rotating shaft 20 Rotating, the second cover 70 is provided with a fourth abutting surface 71, and the fourth abutting surface 71 is opposite to the first end surface 57 of the sealing member 50, that is, the sealing member 50 is assembled The first of the rotating shaft 20 Between the abutment 23 and the fourth abutment 71, the enclosing member 50 is restricted by the second cover 70 and cannot be disengaged from the rotating shaft 20, and the second cover 70 is two. The second cover 70 is formed in a block shape, and the second cover 70 is screwed to the first joint portion 24 of the rotating shaft 20 by a plurality of screwing members.

Please refer to the sixth to ninth drawings. The sixth figure is a perspective combination view of the spindle structure of the present invention, the seventh figure is a front view of the spindle structure of the present invention, and the eighth figure is a sectional view of the seventh figure CC of the present invention. The ninth figure is an enlarged view of the eighth drawing D of the present invention. As shown in the figure, the rotating shaft 20 is pivotally disposed at the first receiving slot 11 of the body 10. The first cover 30 is provided. The third receiving slot 31 is pivotally disposed at one end of the rotating shaft 20, and the sealing member 50 is coupled to the rotating shaft 20, and the sealing member 50 is coupled to the rotating shaft 20 The second circumferential surface 51 is closely fitted with the first circumferential surface 22 of the rotating shaft 20, and the annular convex portion 53 is received in the first chamber 33 of the first cover 30, the second The abutting surface 54 is abutted against the third abutting edge 34. The third abutting surface 55 is abutted against the fourth abutting edge 35. The gasket 60 is received in the annular groove 56 of the sealing member 50. The second cover 70 is coupled to the end of the rotating shaft 20, and the rotating shaft 20, the sealing member 50 and the second cover 70 are rapidly rotated by the power, and the fourth abutting surface 71 And the first end face 57 Relying on each other.

10 is a perspective exploded view of a second embodiment of the present invention, and an eleventh drawing is an enlarged view of a second embodiment of the present invention. The ring member 56 is not provided with the ring groove 56. The ring groove 56 is disposed on the rotating shaft 20, that is, the ring groove 56 is formed on the first circumferential surface 22 of the rotating shaft 20. The number of the ring grooves 56 is two. The first end surface 57 of the sealing member 50 is planar. The two washers 60 are two. The two washers 60 are respectively accommodated in the two rings. In the groove 56, the cross section of the gasket 60 is O-shaped, which The washer 60 has a circular body shape, the second cover 70 is one, and the second cover 70 has a circular body shape.

Referring to the twelfth and thirteenth drawings, the twelfth embodiment is an exploded perspective view of a third embodiment of the present invention, and the thirteenth embodiment is an enlarged view of a third embodiment of the present invention. The annular groove 56 is not provided, and the gasket 60 is not provided. The second circumferential surface 51 and the first circumferential surface 22 are tightly fitted. The sealing member 50 is generally heated and then expanded. The first peripheral surface 22 is sleeved. After the sealing member 50 is cooled, the sealing member 50 is contracted and tightly fitted to the first circumferential surface 22 .

In another embodiment of the present invention, the notch 58 of the sealing member 50 can be shaped as the V shape of the ninth figure. Similarly, the notch 58 can be any groove shape, and the cross section of the gasket 60 can be For the X shape as shown in Fig. 9, or the O shape as shown in Fig. 11, the cross section of the gasket 60 may be any shape.

The advantages of the spindle structure of the present invention are:

1. The second circumferential surface 51 of the sealing member 50 is opposite to the first circumferential surface 22 of the rotating shaft 20, and the gasket 60 is received in the annular groove. In the 56, the gasket 60 has a sealing effect so that each liquid is prevented from entering the inside of the main shaft structure between the second circumferential surface 51 and the first circumferential surface 22.

The first abutting surface 52 of the sealing member 50 is opposite to the first abutting edge 23 of the rotating shaft 20 and the second abutting edge 32 of the first cover body 30. The second cover body 70 The fourth abutting surface 71 is limited to the first end surface 57 of the enclosing member 50, that is, the enclosing member 50 is disposed on the first abutting edge 23 and the fourth abutting portion of the rotating shaft 20 In the face 71, the sealing member 50 is restricted by the second cover 70 and cannot be disengaged from the rotating shaft 20. The sealing member 50 cannot be disengaged due to other factors and has a structural safety. Fullness.

3. The sealing member 50 is rapidly rotated. The first end surface 57 of the sealing member 50 is provided with the notch 58. The section of the notch 58 is V-shaped groove or various grooves. After the liquid contacts the first end surface 57, the liquid is opened or flows to the notch 58 by the inclination of the first end surface 57 and the centrifugal force of the rapid rotation, and the liquid is replaced by the sealing member 50 and the The probability of the gap between the first cover bodies 30 entering the spindle structure is greatly reduced. The first end face 57 and the notch 58 are effective for reducing the entry of each liquid.

4. The machining shaft has a machining tolerance between the rotating shaft 20 and the front cover 30. The liquid enters the second chamber 531 at a gap between the fifth flange 54 and the third flange 34. The second chamber 531 is a large space structure, and the liquid enters the second chamber 531 to reduce the speed of entering. When the sealing member 50 rotates rapidly, the liquid entering the second chamber 531 is caused by the first slope 532. Rotate the centrifugal force and then open it.

5. If the liquid system has passed through the second chamber 531, the second inclined surface 533 is disposed on the end surface of the annular convex portion 53. The second inclined surface 533 forms a large space with the first chamber 33. The liquid will also decrease in speed after entering the liquid, and the centrifugal force of the second slope 533 will also open the liquid here.

6. When the liquid enters the gap between the rotating shaft 20 and the first cover 30 from the gap between the sealing member 50 and the first cover 30, the liquid is sequentially received by the first end surface 57. The missing groove 58, the third abutting surface 55, the second abutting surface 54, the first inclined surface 532 and the second inclined surface 533 are obstructed, and each liquid also needs to overcome the gravity to bypass the annular convex portion 53. The gap between the component 50 and the first cover 30 is in a meandering path, and the probability of each liquid or cutting fluid entering the body 10 from the gap is greatly reduced.

Therefore, the spindle structure of the present invention has industrial utilization, novelty and advancement, and can meet the application requirements of the invention patent, and submit an application according to law.

Claims (18)

A spindle structure, comprising: a body, the system is set on a machine tool, the system is provided with a first receiving groove, the first receiving groove is perforated; a rotating shaft, the rotating shaft is pivoted a first receiving groove is disposed at one end of the rotating shaft, the rotating shaft is provided with a first circumferential surface and a first abutting edge; a first cover body, the first cover system is fixed At the end of the body, the first cover system is provided with a third receiving slot, the third receiving slot is configured to be pivotally extended at one end of the rotating shaft, and the third receiving slot is disposed on the outer peripheral surface in sequence a second abutting member; the enclosing member is provided with a second circumferential surface, and the second circumferential surface is sleeved with the first circumferential surface of the rotating shaft, so that the sealing member is assembled The rotating shaft rotates rapidly with the rotating shaft, and the sealing member is provided with a first abutting surface, and the first abutting surface is opposite to the first abutting edge and the second abutting edge, or the first abutting The first abutting edge of the rotating shaft and the second abutting edge of the first cover body are opposite to each other; the end surface of the sealing member is provided with a first end surface; at least one second cover body, the second The system is fixed at an end of the rotating shaft, the sealing member and the second cover system are coupled to the rotating shaft to rotate rapidly with the rotating shaft, and the second cover system is provided with a fourth abutting surface, the first The four abutting faces are opposite to the first end surface of the sealing member, that is, the sealing member is disposed between the first abutting edge and the fourth abutting surface of the rotating shaft, so that the sealing member is It is restricted by the second cover and cannot be disengaged from the rotating shaft. The spindle structure of claim 1, wherein the first pocket is perforated, and the first end of the body is provided with a plurality of first screwing portions, and the plurality of first screwing portions are the first pockets Arranging for the axial center; the first cover system is provided with a plurality of perforations, each perforation is aligned with each first screw The number of the perforations is the same as the number of the first screwing portions, and the plurality of perforations are arranged in a ring shape with the third pocket as an axis; a plurality of screwing members are provided, and each screwing sleeve is sleeved. Each of the first through-holes is screwed to each of the first screwing portions, so that the first cover body is fixed at an end surface of the body. The spindle structure according to claim 1, wherein a bearing member is disposed between the rotating shaft and the first receiving groove, and the second receiving groove is provided for a cutter assembly, and the second receiving groove has a circular groove shape. The spindle structure of claim 1, wherein a plurality of first joint portions are disposed at one end of the rotating shaft, and the plurality of first joint portions are annularly arranged, and the first joint portion is internally threaded. The second cover system is screwed to the first joint portion of the rotating shaft by a plurality of screwing members. The spindle structure of claim 1, wherein the second flange is further provided with a first chamber, a third flange and a fourth flange at the outer peripheral surface, wherein the first chamber is a concave ring groove The annular member has a ring-shaped convex portion, and the annular convex portion is formed in a ring shape, and the annular convex portion is received in the first housing, and the sealing member is provided with a second abutting surface and a third abutting surface is disposed between the first abutting surface and the second abutting surface, the second abutting surface is opposite to the third abutting surface, and the third abutting surface is coupled to the fourth The second abutting surface is disposed between the first abutting surface and the third abutting surface, and the third abutting surface protrudes from the outer peripheral surface of the sealing member more than the second abutting surface . The spindle structure of claim 5, wherein the first end face is away from the ring protrusion, and the first end face is provided with a notch, and the notch is in the shape of a concave ring groove. The spindle structure of claim 5, wherein the second abutting portion is flush with the first abutting edge of the rotating shaft, and the third abutting edge protrudes from the second abutting edge The fourth edge of the first cover body protrudes more than the third flange from the end surface of the first cover. The spindle structure of claim 1, wherein the second circumferential surface and the first circumferential surface are A tight fit structure. The spindle structure of claim 5, wherein the annular protrusion is provided with a second chamber and a first inclined surface toward the outer peripheral surface, and the annular convex portion is provided with a second inclined surface toward the inner circumferential surface. The two slopes are disposed at the end faces of the ring protrusions. The spindle structure of claim 1, wherein the second circumferential surface is provided with a ring groove, the ring groove is in the shape of a concave ring groove, and a gasket is disposed, and the gasket is received in the ring groove. The gasket is configured to assemble the sealing member with the rotating shaft, the gasket has a sealing effect, and the gasket is in a soft body shape, and the gasket has a circular body shape. The spindle structure of claim 1, wherein the first end surface has a tapered shape, that is, the smaller the thickness of the sealing member toward the outer circumferential surface, the first end surface has an angle with the horizontal plane. The spindle structure of claim 6, wherein the section of the notch is V-shaped. The spindle structure of claim 10, wherein the gasket has an X-shaped cross section, or the gasket has an O-shaped cross section. The spindle structure of claim 10, wherein the enclosing member is not provided with the ring groove, and the ring groove is disposed on the rotating shaft, that is, the first circumferential surface of the rotating shaft is provided The ring groove. The spindle structure of claim 10, wherein the number of the ring grooves is two, and the number of the two rings is two, and the two washers are accommodated in the two ring grooves. The spindle structure of claim 1, wherein the first end surface of the sealing member is planar. The spindle structure according to claim 1, wherein the second cover system is two, the second cover system has a block shape, or the second cover system is one, and the second cover system has a circular body shape. . The spindle structure of claim 1, wherein the enclosure is heated and expanded The sleeve is further sleeved on the first circumferential surface, and after the sealing member is cooled, the sealing member is contracted and tightly fitted to the first circumferential surface.