CN115289141A - Bearing front sealing device with observation hole - Google Patents
Bearing front sealing device with observation hole Download PDFInfo
- Publication number
- CN115289141A CN115289141A CN202211025254.XA CN202211025254A CN115289141A CN 115289141 A CN115289141 A CN 115289141A CN 202211025254 A CN202211025254 A CN 202211025254A CN 115289141 A CN115289141 A CN 115289141A
- Authority
- CN
- China
- Prior art keywords
- bearing
- sealing plug
- observation hole
- front cover
- sealing
- Prior art date
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 74
- 238000007689 inspection Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 229920001971 elastomer Polymers 0.000 description 7
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/021—Sealings between relatively-stationary surfaces with elastic packing
- F16J15/022—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Gasket Seals (AREA)
Abstract
The invention belongs to the technical field of bearing assembly and manufacturing, and particularly relates to a bearing front sealing device with an observation hole, which is applied to a railway wagon bearing. The observation hole is processed on the front cover, so that the condition of the axle can be observed when the bearing is in an abnormal condition or is overhauled, the normal operation of the bearing is ensured, and the service life of the bearing is prolonged. The sealing plug and the front cover are in interference fit, the side face of the sealing plug is provided with the groove, the sealing plug is convenient to assemble and disassemble on the premise of ensuring the stability of the assembly of the sealing plug, and the sealing plug is prevented from being damaged in the assembling and disassembling process.
Description
Technical Field
The invention belongs to the technical field of bearing assembly and manufacturing, and particularly relates to a bearing front sealing device with an observation hole, which is applied to a railway wagon bearing.
Background
The rail wagon transportation is used as a transportation mode of the modern society, and has very obvious advantages in the aspects of safety, economy, efficiency and the like. The bearing unit is used as a bearing unit of the railway wagon, and is a foundation for ensuring the transportation stability and safety of the railway wagon. The front sealing device of the existing bearing of the rail wagon is of a closed integral structure, and the whole front sealing device can only be detached when the shaft end condition and information are checked. Time and labor are wasted, and the whole operation of the bearing is not facilitated.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a front sealing device with an observation hole for a bearing, which facilitates inspection and observation of the shaft end condition of the bearing.
In order to realize the purpose, the technical scheme adopted by the invention is as follows: the bearing front sealing device with the observation hole comprises a front cover arranged on one side of the axial direction of a bearing, wherein the front cover is provided with a through observation hole, a sealing plug is assembled in the observation hole, the sealing plug is in interference fit with the hole wall of the observation hole, and a plurality of grooves are formed in the side wall of the sealing plug, which is in contact with the observation hole.
Furthermore, the bearing sleeve is arranged at the end part of the shaft, the front cover is detachably connected with the shaft, and the front cover is in end face contact with the inner ring of the bearing.
Furthermore, the front cover is fixedly connected with the end face of the shaft through a plurality of connecting bolts.
Furthermore, an anti-loosening sheet is arranged on one side, far away from the shaft end face, of the front cover, and the connecting bolt sequentially penetrates through the anti-loosening sheet and the front cover and is connected to the shaft end face.
Furthermore, the anti-loosening sheet is integrally arranged, a plurality of connecting bolts penetrate through the same anti-loosening sheet to be connected to the end face of the shaft, and the anti-loosening sheet is provided with through holes corresponding to the sealing plugs, so that the sealing plugs are exposed through the through holes.
Further, the sealing plug is an elastic sealing plug capable of elastic deformation.
Further, the sealing plug is a rubber plug.
Further, the observation hole is located in the center of the front cover.
Furthermore, the sealing plug is a cylindrical plug body, and chamfers are arranged at the connecting parts of the circular surfaces at the two ends of the cylindrical plug body and the side surface in the middle of the cylindrical plug body; the diameter of the sealing plug is 55.3mm.
Furthermore, the cross section of the groove on the side wall of the sealing plug is arc-shaped, and each groove surrounds the side wall of the sealing plug for a circle; the number of the grooves is two.
The invention has the beneficial effects that: the observation hole is processed on the front cover, so that the condition of the axle can be observed when the bearing is in an abnormal condition or is overhauled, the normal operation of the bearing is ensured, and the service life of the bearing is prolonged. The sealing plug and the front cover are in interference fit, the side face of the sealing plug is provided with the groove, the sealing plug is convenient to assemble and disassemble on the premise that the sealing plug is stable to assemble, and the sealing plug is prevented from being damaged in the assembling and disassembling process.
Drawings
FIG. 1 is a schematic structural view of a front sealing device of a bearing with a viewing hole;
FIG. 2 is a schematic view of a sealing plug structure;
in the figure: 1. the anti-loosening device comprises a front cover, 2, a sealing plug, 3, an anti-loosening sheet, 4, a connecting bolt, 5, a groove, 6, a bearing, 7 and a shaft.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will recognize without departing from the spirit and scope of the present invention.
Referring to the attached drawings 1-2, the bearing front sealing device with the observation hole comprises a front cover 1 arranged on one axial side of a bearing, wherein the front cover 1 is provided with a through observation hole, a sealing plug 2 is assembled in the observation hole, the sealing plug 2 is an elastic sealing plug capable of elastically deforming, the sealing plug 2 is in interference fit with the hole wall of the observation hole, and two semicircular grooves 5 are formed in the side wall, in contact with the observation hole, of the sealing plug 2.
Based on the technical scheme, it needs to be explained that the observation hole is processed on the front cover 1, so that the condition of the axle can be observed when the bearing is abnormal or overhauled, the normal operation of the bearing is ensured, and the service life of the bearing is prolonged. The sealing plug 2 and the front cover 1 are in interference fit, and the sealing effect can be effectively guaranteed. Because sealing plug 2 is elastomeric element, is in compression state all the time for guaranteeing the leakproofness when the assembly, consequently designs two semicircular groove in sealing plug 2 side, reserves certain deformation space for the elastic compression of sealing plug 2, under the stable prerequisite of guaranteeing sealing plug 2 assembly, makes things convenient for the assembly and the dismantlement of sealing plug 2, prevents that sealing plug 2 from taking place to damage in assembly and the dismantlement process.
Furthermore, the bearing 6 is sleeved at the end part of the shaft 7, the front cover 1 is fixedly connected with the end surface of the shaft through a plurality of connecting bolts 4, and the front cover 7 is in contact with the end surface of the bearing inner ring.
Furthermore, the front cover 1 is a circular main body matched with the diameter of the bearing, one side of the circular main body is provided with an annular convex body matched with the end face of the bearing inner ring, the end face of the annular convex body is in contact sealing with the end face of the bearing inner ring, the connecting bolts 4 penetrate through the circular main body and are axially connected onto the end face of the shaft, a certain space is reserved between the circular main body and the end face of the shaft, the connecting bolts can be screwed, the front cover is extruded towards the direction of the bearing, and the sealing performance of the front sealing device is guaranteed.
Furthermore, an anti-loosening sheet 3 is arranged on one side, far away from the end face of the shaft, of the front cover 1, and a connecting bolt 4 sequentially penetrates through the anti-loosening sheet 3 and the front cover 1 and is connected to the end face of the shaft 7. The anti-loosening sheet is integrally arranged, and the connecting bolts 4 penetrate through the same anti-loosening sheet 3 to be connected to the end face of the shaft, so that the consistency of the mounting positions of the connecting bolts is guaranteed. The anti-loosening sheet 3 is provided with a through hole corresponding to the sealing plug, so that the sealing plug is exposed through the through hole, and the anti-loosening sheet 3 and the connecting bolt 4 are ensured not to interfere with the assembly of the sealing plug 2.
Further, the sealing plug 2 is a rubber plug. The rubber stopper material adopts butadiene-acrylonitrile rubber, compares with ordinary rubber, and the leakproofness is better, and is difficult for ageing, and environmental temperature changes and influences little to the material, can prevent that the freight train is at the operation in-process, and the rubber stopper drops, and good leakproofness can prevent influences bearing life such as dust and rainwater.
Further, the observation hole is located at the center of the front cover 1. The condition of each position of the shaft end can be observed conveniently,
further, the sealing plug 2 is a cylindrical plug body, and chamfers are arranged at the connecting positions of the circular surfaces at the two ends of the cylindrical plug body and the side surface in the middle of the cylindrical plug body; the diameter of the sealing plug is 55.3mm. The thickness of the sealing plug 1 is larger than that of the front cover 1, so that the sealing plug is convenient to mount, dismount and seal. The diameter of the through hole on the anti-loosening sheet 3 corresponding to the sealing plug 2 is 60mm, which is larger than the diameter of the sealing plug 2, so that the sealing plug 2 can be completely exposed without influencing the mounting and dismounting of the sealing plug 2.
Based on the technical scheme, it needs to be explained that the outer surface of the cylindrical plug body is excessively smooth and has uniform stress, and the cylindrical plug body is convenient to assemble and disassemble.
Furthermore, the semicircular grooves on the side wall of the sealing plug are circular arc-shaped in cross section, and each groove surrounds the side wall of the sealing plug for a circle.
The pre-manufactured bearing front sealing device is good in rubber plug assembling performance and reliable in sealing performance.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.
The above list is only the preferred embodiment of the present invention. It is obvious that the invention is not limited to the above embodiments, but that many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.
Claims (8)
1. Bearing front sealing device with observation hole, its characterized in that: the bearing inspection device comprises a front cover arranged on one side of the axial direction of a bearing, wherein a through observation hole is formed in the front cover, a sealing plug is assembled in the observation hole, the sealing plug is in interference fit with the wall of the observation hole, and a plurality of grooves are formed in the side wall of the sealing plug in contact with the observation hole.
2. The front bearing seal with the observation hole of claim 1, wherein: the bearing sleeve is arranged at the end part of the shaft, the front cover is detachably connected with the shaft, and the front cover is in end face contact with the inner ring of the bearing.
3. The front bearing seal with the sight hole of claim 2, wherein: the front cover is fixedly connected with the shaft end face through a plurality of connecting bolts.
4. The front bearing seal with the sight hole of claim 3, wherein: and one side of the front cover far away from the shaft end face is provided with an anti-loosening sheet, and the connecting bolt sequentially penetrates through the anti-loosening sheet and the front cover and is connected to the shaft end face.
5. The front bearing seal with the sight hole of claim 4, wherein: the anti-loosening sheet is integrally arranged, a plurality of connecting bolts penetrate through the same anti-loosening sheet and are connected to the end face of the shaft, and the anti-loosening sheet is provided with through holes corresponding to the sealing plugs, so that the sealing plugs are exposed through the through holes.
6. The front bearing seal with the sight hole of claim 1, wherein: the observation hole is positioned in the center of the front cover.
7. The front bearing seal with the observation hole of claim 1, wherein: the sealing plug is a cylindrical plug body, and chamfers are arranged at the joints of the circular surfaces at the two ends of the cylindrical plug body and the side surface in the middle of the cylindrical plug body; the diameter of the sealing plug is 55.3mm.
8. The front bearing seal with the observation hole of claim 1, wherein: the number of the grooves is two.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211025254.XA CN115289141A (en) | 2022-08-25 | 2022-08-25 | Bearing front sealing device with observation hole |
| PCT/CN2022/125070 WO2024040719A1 (en) | 2022-08-25 | 2022-10-13 | Bearing front sealing device having observation hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211025254.XA CN115289141A (en) | 2022-08-25 | 2022-08-25 | Bearing front sealing device with observation hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115289141A true CN115289141A (en) | 2022-11-04 |
Family
ID=83832605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211025254.XA Pending CN115289141A (en) | 2022-08-25 | 2022-08-25 | Bearing front sealing device with observation hole |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115289141A (en) |
| WO (1) | WO2024040719A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024040709A1 (en) * | 2022-08-25 | 2024-02-29 | 瓦房店轴承集团有限责任公司 | Bearing front sealing device having observation hole |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0586744U (en) * | 1991-06-24 | 1993-11-22 | エヌティエヌ株式会社 | Front cover of bearings for railway vehicles |
| JP2000065078A (en) * | 1998-08-25 | 2000-03-03 | Nachi Fujikoshi Corp | Rolling bearing for rolling stock axle |
| EP2982878B1 (en) * | 2013-04-04 | 2018-08-08 | NSK Ltd. | Resin cage for tapered roller bearing and tapered roller bearing including the resin cage |
| CN106300766A (en) * | 2016-08-31 | 2017-01-04 | 无锡太昌精密机械有限公司 | Easy-to-dismount electric machine casing and the assembling structure of front motor cover |
| CN109253161A (en) * | 2018-11-30 | 2019-01-22 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Integral seal double row tapered roller bearing |
| CN218118381U (en) * | 2022-08-25 | 2022-12-23 | 瓦房店轴承集团有限责任公司 | Bearing front sealing device with observation hole |
-
2022
- 2022-08-25 CN CN202211025254.XA patent/CN115289141A/en active Pending
- 2022-10-13 WO PCT/CN2022/125070 patent/WO2024040719A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024040709A1 (en) * | 2022-08-25 | 2024-02-29 | 瓦房店轴承集团有限责任公司 | Bearing front sealing device having observation hole |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024040719A1 (en) | 2024-02-29 |
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