Rotating shaft cooling device
By designing a shaft cooling device with independent channels and multi-layer sealing rings, the problem of easy leakage in the shaft cooling system of vacuum equipment was solved, achieving complete sealing of the cooling system and improving the operational stability and maintenance convenience of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI YICAN VACUUM TECH CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-04-10
AI Technical Summary
The existing shaft cooling system of vacuum equipment has a complex structure and is prone to leakage, which affects the sealing and stability of the equipment.
A shaft cooling device comprising a bushing, a housing, a top cover, and a sealing ring was designed. The device achieves sealed circulation of cooling water through independent channels and multiple layers of sealing rings, thus preventing cooling water leakage.
It achieves complete sealing of the cooling system, improving the stability and ease of maintenance of the equipment, and is particularly suitable for vacuum environments and high-precision rotary applications.
Smart Images
Figure CN224107572U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of magnetic fluid seal, especially shaft cooling device. BACKGROUND
[0002] In recent years, the vacuum equipment develops rapidly at home and abroad. In many rotary dynamic sealing devices, magnetic fluid sealing has been widely used, such as the sealing of single crystal silicon furnace, vacuum brazing furnace, vacuum smelting furnace, chemical vapor deposition, ion plating, liquid crystal regeneration and other vacuum equipment, as well as the sealing of low temperature and high pressure equipment and the equipment with high environmental requirements. Thus, the product quality is improved, and good economic benefits are obtained. The existing product often needs to pass in multiple cooling water for the cooling of the vacuum equipment in the cavity, and the equipment needs to rotate synchronously with the shaft, so the cooling pipeline design is complex, and leakage problem is easy to occur, damaging the vacuum equipment. UTILITARY MODEL CONTENTS
[0003] In view of the defects in the prior art, the utility model aims at providing a shaft cooling device which is not easy to leak.
[0004] To solve the above technical problems, the utility model discloses a shaft cooling device, which comprises a shaft sleeve, a second through hole and a fifth through hole are arranged on the shaft sleeve, the second through hole is communicated with the first channel of the shaft, and the fifth through hole is communicated with the second channel of the shaft.
[0005] A shell is arranged on the outer side of the shaft sleeve, a first through hole and a sixth through hole are arranged on the shell, the first through hole is communicated with the second through hole, and the sixth through hole is communicated with the fifth through hole.
[0006] A front top cover and a rear top cover are arranged on the outer side of the shaft, respectively, and the front top cover and the rear top cover are arranged at the end portions of the shell at both ends.
[0007] A front bearing and a rear bearing are arranged on the outer side of the shaft, respectively, and the front bearing and the rear bearing are arranged at both ends of the shell.
[0008] The first through hole and the sixth through hole are communicated with the outside;
[0009] The first channel and the second channel are independent of each other;
[0010] The first channel is communicated with the outside through a third through hole, and the second channel is communicated with the outside through a fourth through hole.
[0011] A first sealing ring and a second sealing ring are arranged between the shaft sleeve and the shaft.
[0012] The shell comprises a protruding portion and a covering portion.
[0013] The extension part is closer to the shaft sleeve than the cover part.
[0014] The front top cover and the rear top cover, and the front bearing and the rear bearing are respectively arranged at two ends of the cover part.
[0015] A middle sealing ring is arranged between the extension part and the shaft sleeve.
[0016] A front sealing ring and a rear sealing ring are respectively arranged at two ends of the extension part.
[0017] A front spacer ring is arranged between the front sealing ring and the front bearing, and a rear spacer ring is arranged between the rear sealing ring and the rear bearing.
[0018] The rotating shaft cooling device effectively overcomes the defects of complex structure and poor sealing performance of the multi-path cooling system of the rotating shaft of the traditional vacuum equipment, realizes complete sealing of the cooling system, greatly improves the operation stability and maintenance convenience of the equipment, and is particularly suitable for industrial application scenarios with strict requirements on vacuum environment and rotating precision. BRIEF DESCRIPTION OF DRAWINGS
[0019] Other features, objects and advantages of the present application will become more apparent with the reading of the following detailed description of non-restrictive embodiments, made with reference to the attached drawings.
[0020] Figure 1 The figure is a structural schematic diagram of the rotating shaft cooling device.
[0021] The figure is a structural schematic diagram of the rotating shaft cooling device.
[0022] DETAILED DESCRIPTION
[0023] The present application will be described in detail below with reference to specific embodiments. The following embodiments will help those skilled in the art to further understand the present application, but do not limit the present application in any form. It should be pointed out that, for those skilled in the art, without departing from the concept of the present application, a number of changes and improvements can be made. These all belong to the protection scope of the present application.
[0024] The embodiments described by reference to the drawings are exemplary and are intended to be illustrative of the application and are not to be construed as limiting the application. In the description of the application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate directions or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely used for convenience in describing the application and simplifying the description, and are not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the application. In addition, the terms "first", "second", are used only for descriptive purposes and are not to be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the application, the meaning of "several", "a plurality of" is two or more, unless otherwise explicitly specified and limited. In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be interpreted broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can include the first and second features directly contacting, or the first and second features not directly contacting but contacting through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.
[0025] As Figure 1 The shaft cooling device of the present application mainly comprises a shaft 1, a shaft sleeve 2, a front sealing ring 3, a rear sealing ring 4, a front bearing 5, a rear bearing 14, an outer shell 6, a front partition ring 7, a rear partition ring 8, a front top cover 9, a rear top cover 10, a middle sealing ring 11, a first sealing ring 12 and a second sealing ring 13.
[0026] Specifically, the shaft sleeve 2 is sleeved on the outer side of the shaft 1, the second through hole 16 and the fifth through hole 19 are arranged on the shaft sleeve 2, the second through hole 16 is in communication with the first channel of the shaft 1, and the fifth through hole 19 is in communication with the second channel of the shaft 1.
[0027] The shell 6 is sleeved on the outer side of the shaft sleeve 2, the first through hole 15 and the sixth through hole 20 are arranged on the shell 6, the first through hole 15 is in communication with the second through hole 16, and the sixth through hole 20 is in communication with the fifth through hole 19.
[0028] The front top cover 9 and the rear top cover 10 are respectively sleeved on the outer side of the shaft 1, and the front top cover 9 and the rear top cover 10 are located at the ends of the shell 6.
[0029] The front bearing 5 and the rear bearing 14 are respectively sleeved on the outer side of the shaft 1, and the front bearing 5 and the rear bearing 14 are located at the ends of the shell 6.
[0030] The first through hole 15 and the sixth through hole 20 are in communication with the outside world.
[0031] The first channel and the second channel are independent of each other.
[0032] The first channel is in communication with the outside world through the third through hole 17, and the second channel is in communication with the outside world through the fourth through hole 18.
[0033] The first sealing ring 12 and the second sealing ring 13 are arranged between the shaft sleeve 2 and the shaft 1.
[0034] The shell 6 comprises a stretching part and a covering part.
[0035] The stretching part is closer to the shaft sleeve 2 than the covering part.
[0036] The front top cover 9 and the rear top cover 10, the front bearing 5 and the rear bearing 14 are respectively arranged at the two ends of the covering part.
[0037] The middle sealing ring 11 is arranged between the stretching part and the shaft sleeve 2.
[0038] The front sealing ring 3 and the rear sealing ring 4 are respectively arranged at the two ends of the stretching part.
[0039] The front partition ring 7 is further arranged between the front sealing ring 3 and the front bearing 5, and the rear partition ring 8 is further arranged between the rear sealing ring 4 and the rear bearing 14.
[0040] In operation, cooling water flows from the first through hole 15 to the second through hole 16, through the first channel from the third through hole 17 to the equipment, and after circulation, from the fourth through hole 18 to the fifth through hole 19 through the second channel, and from the sixth through hole 20; the front sealing ring 3 prevents the cooling water from overflowing from the second cavity 22 to the first cavity 21; the rear sealing ring 4 prevents the cooling water from overflowing from the third cavity 23 to the fourth cavity 24; the middle sealing ring 11 prevents the cooling water from overflowing from the second cavity 22 to the third cavity 23; the first sealing ring 12 prevents the cooling water from flowing into the first cavity 21 from the second through hole 16 along the contact surface of the shaft and the shaft sleeve; the second sealing ring 13 prevents the cooling water from flowing into the fourth cavity 24 from the sixth through hole 20 along the contact surface of the shaft and the shaft sleeve; the outer ring of the front bearing 5 contacts the right side of the front top cover 9 and the left side of the front partition ring 7, and the front partition ring 7 abuts against the shell 6 to prevent the front sealing ring 3 from sliding to the left; the outer ring of the rear bearing 14 contacts the left side of the rear top cover 10 and the right side of the rear partition ring 8, and the rear partition ring 8 abuts against the shell 6 to prevent the rear sealing ring 4 from sliding backward.
[0041] The specific embodiments of the utility model are described above. It should be understood that the utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of claims, which does not affect the essential content of the utility model. In the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.
Claims
1. A shaft cooling device, characterized by, The application relates to a bearing assembly. The bearing assembly comprises: a shaft sleeve sleeved on the outside of a shaft, wherein a second through hole and a fifth through hole are arranged on the shaft sleeve; the second through hole is communicated with a first channel of the shaft, and the fifth through hole is communicated with a second channel of the shaft; a housing is sleeved on the outside of the shaft sleeve, wherein a first through hole and a sixth through hole are arranged on the housing; the first through hole is communicated with the second through hole, and the sixth through hole is communicated with the fifth through hole; a front top cover and a rear top cover are respectively sleeved on the outside of the shaft, and the front top cover and the rear top cover are arranged at the ends of the housing; a front bearing and a rear bearing are respectively sleeved on the outside of the shaft, and the front bearing and the rear bearing are arranged at the ends of the housing. The first through hole and the sixth through hole are communicated with the outside; the first channel and the second channel are independent of each other; the first channel is communicated with the outside through a third through hole, and the second channel is communicated with the outside through a fourth through hole.
2. The shaft cooling device according to claim 1, characterized by A first sealing ring and a second sealing ring are arranged between the shaft sleeve and the shaft.
3. The shaft cooling device according to claim 2, characterized in that The housing comprises a protruding part and a covering part; the protruding part is closer to the shaft sleeve than the covering part; the front top cover and the rear top cover, and the front bearing and the rear bearing are respectively arranged at the two ends of the covering part.
4. The shaft cooling device according to claim 3, characterized by A middle sealing ring is arranged between the protruding part and the shaft sleeve.
5. The shaft cooling device according to claim 4, characterized in that A front sealing ring and a rear sealing ring are respectively arranged at the two ends of the protruding part.
6. The shaft cooling device according to claim 5, characterized in that A front partition ring is arranged between the front sealing ring and the front bearing, and a rear partition ring is arranged between the rear sealing ring and the rear bearing.