CN204200865U - A kind of bearing unit - Google Patents
A kind of bearing unit Download PDFInfo
- Publication number
- CN204200865U CN204200865U CN201420626621.6U CN201420626621U CN204200865U CN 204200865 U CN204200865 U CN 204200865U CN 201420626621 U CN201420626621 U CN 201420626621U CN 204200865 U CN204200865 U CN 204200865U
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- CN
- China
- Prior art keywords
- bearing
- exhaust port
- sealing element
- spherical sealing
- breathing pipe
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of bearing unit, its drip irrigation device is a kind of bearing unit, comprise bearing, bearing support, end cap, bearing gland, described bearing gland and end cap to be all fixedly connected on bearing support and to form bearing chamber with bearing support, press-fited by bearing gland in bearing chamber and be fixed with described bearing, described bearing support sidewall is provided with breathing pipe, described bearing support sidewall is also provided with pressure reduction structure, described pressure reduction structure comprises spherical sealing element and exhaust port, described exhaust port is positioned at bearing support sidewall, the hole wall of described exhaust port is provided with internal thread, the fastening piece be threaded with internal thread is provided with in exhaust port, described breathing pipe is connected with exhaust port and forms ventilating hole between described breathing pipe and exhaust port, described spherical sealing element is positioned at exhaust port, the diameter of described spherical sealing element is greater than the diameter of ventilating hole, described spherical sealing element is between ventilating hole and fastening piece, can mutually conflict between described spherical sealing element and fastening piece.
Description
Technical field
The utility model relates to bearing unit, is specially a kind of bearing unit dispelled the heat.
Background technique
Existing grease lubricating bearing parts, good airproof performance, application is extensive.But there are two main problems: 1, bearing part is all-sealed, and the heat radiation in bearing chamber does not have this approach of convection current, and radiating effect is poor, and bearing temperature rise is high, shortens the filling cycle of lubricating grease and the life-span of bearing.2, along with the temperature in bearing chamber raises, gas expansion, pressure raises, make to press tighter and tighter between the lip of oil sealing and axle, on the one hand the temperature of axle and oil sealing is raised, thus improve the temperature rise of bearing chamber further, also reduce the working life of oil sealing and the efficiency of equipment on the other hand.
At present, disclose the patent document that notification number is CN203477105U, a kind of bearing unit dispelled the heat, comprise breather plug, end cap, bearing support, bearing gland, bearing, axle, plug, oil sealing, bearing support is fixing on the table, bearing gland and end cap to be all fixed on bearing support and to form bearing chamber with bearing support, bearing is pressed with by bearing gland in bearing chamber, axle is connected with bearing fit in bearing chamber through the central through bore on bearing gland, oil sealing is provided with in bearing gland center hole, end cap bottom has the row's fat mouth passing into bearing chamber, plug is provided with in row's fat mouth, the top of bearing support is provided with the through hole passing into bearing chamber, breather plug is provided with in through hole.Although by the breather plug being arranged on bearing support top, hot air in bearing chamber can be discharged by the vent of breather plug, make the pressure inside and outside bearing chamber identical, but need artificial to open breather plug, artificial closedown is also needed after heat radiation has been reduced pressure, use comparatively inconvenience, vent is opened also may cause outflow of lubrication oil completely.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of bearing unit, and this bearing unit can independently dispel the heat decompression.
For achieving the above object, the utility model provides following technological scheme: a kind of bearing unit, comprise bearing, bearing support, end cap, bearing gland, described bearing gland and end cap to be all fixedly connected on bearing support and to form bearing chamber with bearing support, described bearing is press-fited fixing by bearing gland, it is characterized in that, described bearing support sidewall is provided with breathing pipe, described bearing support sidewall is also provided with for the pressure reduction structure to the step-down of bearing chamber internal heat dissipating, described pressure reduction structure comprises spherical sealing element and exhaust port, described exhaust port is positioned at bearing support sidewall, the hole wall of described exhaust port is provided with internal thread, the fastening piece be threaded with internal thread is provided with in exhaust port, described breathing pipe is connected with exhaust port and forms ventilating hole between described breathing pipe and exhaust port, described spherical sealing element is positioned at exhaust port, the diameter of described spherical sealing element is greater than the diameter of ventilating hole, described spherical sealing element is between ventilating hole and fastening piece, can mutually conflict between described spherical sealing element and fastening piece.
By adopting technique scheme, because pressure reduction structure is arranged on bearing support top, make the hot air in bearing chamber can be discharged in air by exhaust port, reduce the temperature in bearing chamber, extend the stuffing cycle, make the pressure inside and outside bearing chamber identical, alleviate the friction between oil sealing and axle, the further prolongation stuffing cycle, extending shaft bearing assembly operating life.Be provided with fastening piece in described exhaust port to seal, when fastening piece is screwed into exhaust port completely time, described fastening piece and spherical sealing element are conflicted mutually, spherical sealing element is made to compress ventilating hole, be conducive to ensureing the sealing in bearing chamber, when needs are exhausted heat radiation decompression operation, slightly turn on fastening piece, make between spherical sealing element and ventilating hole, to form gap to discharge for the high-temperature gas of bearing chamber inside, reach the object of heat radiation step-down, due to the mobility of gas, the high-temperature gas of bearing chamber inside can be discharged by gap, lubricant oil then can be blocked by spherical sealing element, the pressure reduction structure be made up of fastening piece and spherical sealing element, structure is convenient to offer, install simple.
The utility model is set to further: be also provided with ring baffle in described exhaust port, and described ring baffle is between ventilating hole and fastening piece, and in ring baffle, circular diameter is less than the diameter of spherical sealing element.
By adopting technique scheme, be provided with ring baffle, spherical sealing element side embeds ring baffle inner ring, is convenient to the position better fixed between spherical sealing element and ring baffle, is convenient to better operate fastening piece.
The utility model is set to further: be provided with sealed department between described breathing pipe and exhaust port, described sealed department is round table-like setting, described round table-like upper bottom surface is connected with breathing pipe, described round table-like bottom surface is connected with exhaust port, forming surface contact between described spherical sealing element and round table-like sealed department.
By adopting technique scheme, forming surface contact between described spherical sealing element and round table-like sealed department, add the area of contact between spherical sealing element and round table-like sealed department, further ensure that the matching relationship closely between spherical sealing element and ventilating hole.
The utility model is set to further: the diameter of described breathing pipe is less than the diameter of exhaust port, and described breathing pipe is that upside down funnel shape is arranged back to the mouth of pipe of spherical sealing element.
By adopting technique scheme, major function due to this breathing pipe is exhaust decompression, can reduce the diameter of breathing pipe, is convenient to processing and installs, the breathing pipe mouth of pipe arranged in upside down funnel shape is conducive to the area of contact increasing gas, makes gas easier discharge bearing chamber inside.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of bearing unit of the utility model embodiment;
Fig. 2 is the partial enlarged drawing of a kind of bearing unit of the utility model embodiment.
Reference character: 1, pressure reduction structure; 11, spherical sealing element; 12, sealed department; 13, fastening piece; 14, exhaust port; 15, ring baffle; 2, breathing pipe; 21, ventilating hole; 3, bearing support; 4, bearing gland; 5, bearing; 6, axle; 7, plug; 8, seal ring; 9, end cap.
Embodiment
Referring to figs. 1 through Fig. 2, the utility model embodiment is described further.
As shown in Figure 1 to Figure 2, a kind of bearing unit, comprise bearing 5, bearing support 3, end cap 9, bearing gland 4, bearing support 3 is fixing on the table, described bearing gland 4 and end cap 9 to be all fixedly connected on bearing support 3 and to form bearing chamber with bearing support 3, press-fited by bearing gland 4 in bearing chamber and be fixed with described bearing 5, described bearing gland 4 is with central through bore, bearing gland 4 is ring structure, axle 6 can be connected with the inner ring of described bearing 5 in bearing chamber through after the central through bore on bearing gland 4, the seal ring 8 that bearing chamber is sealed is provided with in bearing gland 4 center hole, end cap 9 bottom has the row's fat mouth passing into bearing chamber, in row's fat mouth, sealing is provided with plug 7, described bearing support 3 sidewall is provided with breathing pipe 2, described bearing support 3 sidewall is also provided with for the pressure reduction structure 1 to the step-down of bearing chamber internal heat dissipating, described pressure reduction structure 1 comprises spherical sealing element 11 and exhaust port 14, described exhaust port 14 is positioned at bearing support 3 sidewall, the hole wall of described exhaust port 14 is provided with internal thread, the fastening piece 13 be threaded with internal thread is provided with in exhaust port 14, described breathing pipe 2 is connected with exhaust port 14 and forms ventilating hole 21 between described breathing pipe 2 and exhaust port 14, described spherical sealing element 11 is positioned at exhaust port 14, the diameter of described spherical sealing element 11 is greater than the diameter of ventilating hole 21, described spherical sealing element 11 is between ventilating hole 21 and fastening piece 13, can mutually conflict between described spherical sealing element 11 and fastening piece 13.
Because pressure reduction structure 1 is arranged on bearing support 3 top, make the hot air in bearing chamber can be discharged in air by exhaust port 14, reduce the temperature in bearing chamber, extend the stuffing cycle, make the pressure inside and outside bearing chamber identical, alleviate the friction between oil sealing and axle, extend the stuffing cycle further, extending shaft bearing assembly operating life.When external temperature higher needs heat radiation decompression, can slightly turn on fastening piece 13, when pressure is not enough, due to the weight of spherical sealing element 11, exhaust port 14 can not be opened, when in bearing chamber, pressure reaches certain value, spherical sealing element 11 can be promoted, namely high-temperature gas discharges for the high-temperature gas of bearing chamber inside by forming gap between spherical sealing element 11 and ventilating hole 21, reach the object of heat radiation step-down, due to the mobility of gas, the high-temperature gas of body interior can be discharged by gap, and lubricant oil then can be blocked by spherical sealing element 11.When external temperature lower without the need to heat radiation decompression time, fastening piece 13 can be tightened, ensure sealing in bearing chamber, seal with fastening piece 13 in exhaust port 14, fastening piece 13 is screw, and when fastening piece 13 is screwed into exhaust port 14 completely time, described fastening piece 13 is conflicted mutually with spherical sealing element 11, make spherical sealing element 11 compress ventilating hole 21, ensure the sealing in bearing chamber.
Also be provided with ring baffle 15 in described exhaust port 14, described ring baffle 15 is between ventilating hole 21 and fastening piece 13, and in ring baffle 15, circular diameter is less than the diameter of spherical sealing element 11.Be provided with ring baffle 15, spherical sealing element 11 side embeds ring baffle 15 inner ring, is convenient to better fix the position between spherical sealing element 11 and ring baffle 15, is convenient to better operate fastening piece 13.
Sealed department 12 is provided with between described breathing pipe 2 and exhaust port 14, described sealed department 12 is in round table-like setting, described round table-like upper bottom surface is connected with breathing pipe 2, and described round table-like bottom surface is connected with exhaust port 14, forming surface contact between described spherical sealing element 11 and round table-like sealed department 12.Between described spherical sealing element 11 and round table-like sealed department 12, forming surface contact, adds the area of contact between spherical sealing element 11 and round table-like sealed department 12, further ensure that the matching relationship closely between spherical sealing element 11 and ventilating hole 21.
The diameter of described breathing pipe 2 is less than the diameter of exhaust port 14, and described breathing pipe 2 is that upside down funnel shape is arranged back to the mouth of pipe of spherical sealing element 11.Major function due to this breathing pipe 2 is exhaust decompression, can reduce the diameter of breathing pipe 2, just installs with processing, and breathing pipe 2 mouth of pipe arranged in upside down funnel shape is conducive to the area of contact increasing gas, makes gas easier discharge bearing chamber inside.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. a bearing unit, comprise bearing, bearing support, end cap, bearing gland, described bearing gland and end cap to be all fixedly connected on bearing support and to form bearing chamber with bearing support, described bearing is press-fited fixing by bearing gland, it is characterized in that, described bearing support sidewall is provided with breathing pipe, described bearing support sidewall is also provided with for the pressure reduction structure to the step-down of bearing chamber internal heat dissipating, described pressure reduction structure comprises spherical sealing element and exhaust port, described exhaust port is positioned at bearing support sidewall, the hole wall of described exhaust port is provided with internal thread, the fastening piece be threaded with internal thread is provided with in exhaust port, described breathing pipe is connected with exhaust port and forms ventilating hole between described breathing pipe and exhaust port, described spherical sealing element is positioned at exhaust port, the diameter of described spherical sealing element is greater than the diameter of ventilating hole, described spherical sealing element is between ventilating hole and fastening piece, can mutually conflict between described spherical sealing element and fastening piece.
2. a kind of bearing unit according to claim 1, is characterized in that, is provided with ring baffle in described exhaust port, and described ring baffle is between ventilating hole and fastening piece, and in ring baffle, circular diameter is less than the diameter of spherical sealing element.
3. a kind of bearing unit according to claim 2, it is characterized in that, sealed department is provided with between described breathing pipe and exhaust port, described sealed department is round table-like setting, described round table-like upper bottom surface is connected with breathing pipe, described round table-like bottom surface is connected with exhaust port, forming surface contact between described spherical sealing element and round table-like sealed department.
4. a kind of bearing unit according to claim 3, is characterized in that, the diameter of described breathing pipe is less than the diameter of exhaust port, and described breathing pipe is that upside down funnel shape is arranged back to the mouth of pipe of spherical sealing element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420626621.6U CN204200865U (en) | 2014-10-27 | 2014-10-27 | A kind of bearing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420626621.6U CN204200865U (en) | 2014-10-27 | 2014-10-27 | A kind of bearing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204200865U true CN204200865U (en) | 2015-03-11 |
Family
ID=52658829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420626621.6U Expired - Fee Related CN204200865U (en) | 2014-10-27 | 2014-10-27 | A kind of bearing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204200865U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594060A (en) * | 2016-11-09 | 2017-04-26 | 安徽千禧精密轴承制造有限公司 | Bearing module capable of dissipating heat |
| CN108019430A (en) * | 2016-11-04 | 2018-05-11 | 财团法人工业技术研究院 | Fluid machinery lubricating system assembly |
| CN113483024A (en) * | 2021-07-14 | 2021-10-08 | 珠海格力电器股份有限公司 | Sliding sleeve structure and electric spindle |
-
2014
- 2014-10-27 CN CN201420626621.6U patent/CN204200865U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019430A (en) * | 2016-11-04 | 2018-05-11 | 财团法人工业技术研究院 | Fluid machinery lubricating system assembly |
| US10316953B2 (en) | 2016-11-04 | 2019-06-11 | Industrial Technology Research Institute | Assembly of lubrication system for fluid machinery |
| CN108019430B (en) * | 2016-11-04 | 2020-09-01 | 财团法人工业技术研究院 | Fluid machinery lubricating system assembly |
| CN106594060A (en) * | 2016-11-09 | 2017-04-26 | 安徽千禧精密轴承制造有限公司 | Bearing module capable of dissipating heat |
| CN113483024A (en) * | 2021-07-14 | 2021-10-08 | 珠海格力电器股份有限公司 | Sliding sleeve structure and electric spindle |
| CN113483024B (en) * | 2021-07-14 | 2022-06-17 | 珠海格力电器股份有限公司 | Sliding sleeve structure and electric spindle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20151027 |
|
| EXPY | Termination of patent right or utility model |