CN208995995U - A kind of freely-supported wheel with oil passage - Google Patents
A kind of freely-supported wheel with oil passage Download PDFInfo
- Publication number
- CN208995995U CN208995995U CN201821678303.9U CN201821678303U CN208995995U CN 208995995 U CN208995995 U CN 208995995U CN 201821678303 U CN201821678303 U CN 201821678303U CN 208995995 U CN208995995 U CN 208995995U
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- oil
- bearing
- wheel
- wheel shaft
- freely
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- Withdrawn - After Issue
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Abstract
The utility model belongs to gate technical field, and in particular to a kind of freely-supported wheel with oil passage, including wheel shaft, wheel hub and bearing；One side end face of bearing and adjacent bearing cap form the first oil pocket, and another side end face of bearing and adjacent bearing cap form the second oil pocket, and the first oil pocket and the second oil pocket are respectively communicated with the installation cavity between bearing outer ring and bearing inner race；Described wheel shaft one end is axially provided with the first oil transportation hole, and the wheel shaft other end is axially provided with the second oil transportation hole；First oil transportation bore end is connected to the first ipsilateral oil pocket by the first oil permeable hole being radially arranged on wheel shaft, and the second oil transportation bore end is connected to the second ipsilateral oil pocket by the second oil permeable hole being radially arranged on wheel shaft.Freely-supported wheel provided by the utility model with oil passage, assembly is simple, and air-proof condition is good, and the freely-supported wheel of oil change can be completed under without dismantling state.
Description
Technical field
The utility model belongs to gate technical field, and in particular to a kind of freely-supported wheel with oil passage.
Background technique
In hydraulic and hydroelectric engineering, freely-supported wheel is as gate part, in the higher total biggish situation of water pressure of head, past
Mostly use the freely-supported wheel of self-lubricating knuckle bearing as support device；But with the development of industry, the update of technical conditions,
In many cases in order to further decrease frictional force, headstock gear equipment size is reduced, is got over using the freely-supported wheel of self-aligning roller bearing
Come it is more be required using.
It is found in actual moving process, self-aligning roller bearing is more when being although greatly reduced frictional force but its operation
Using oily (or rouge) lubrication, since application head is often higher, corresponding sealing structure makes filling or more oil change more
Difficulty carries out filling or more oil change after need to often disassembling.
Utility model content
The purpose of the utility model is to provide a kind of freely-supported wheel with oil passage, assembly is simple, and air-proof condition is good,
The freely-supported wheel of oil change can be completed under without dismantling state.
Purpose of the utility model is realized as follows: a kind of freely-supported wheel with oil passage, including wheel shaft, wheel hub and
Bearing, wheel shaft are tight at bearing inner race, and wheel hub is tight at bearing outer ring, and bearing two sides are arranged bearing cap, bearing cap respectively with wheel
Hub, wheel sealing cooperation；One side end face of bearing and adjacent bearing cap form the first oil pocket, another side end face of bearing and adjacent
Bearing cap forms the second oil pocket, and the first oil pocket and the second oil pocket are respectively communicated with the installation cavity between bearing outer ring and bearing inner race；
Described wheel shaft one end is axially provided with the first oil transportation hole, and the wheel shaft other end is axially provided with the second oil transportation hole；First oil transportation hole end
End is connected to the first ipsilateral oil pocket by the first oil permeable hole being radially arranged on wheel shaft, and the second oil transportation bore end is set by radial
It sets the second oil permeable hole on wheel shaft and is connected to the second ipsilateral oil pocket；First oil transportation hole is not connected to axially with the second oil transportation hole.
Further, the bearing is self-aligning roller bearing.
Further, the bearing cap includes bearing cover and internal bearing cover, internal bearing cover be set on wheel shaft and with wheel
Axis close-fitting, bearing cover are slidingly sealed cooperation on the outside of internal bearing cover, and the contact surface of bearing cover and internal bearing cover is spherical surface, ball
The face centre of sphere is consistent with the self-aligning roller bearing centre of gyration.
Further, outer ring boss is set on the inside of the bearing cover, outer ring boss is resisted against bearing outer ring end face；
Annular boss is set on the inside of the internal bearing cover, and annular boss is resisted against bearing inner race end face, and the setting of annular boss is saturating
Oil groove.
Further, sealing ring is set between the bearing cover medial surface and wheel hub end face；In bearing cover and bearing
Sealing ring is set between the contact surface of lid；Sealing ring is set between internal bearing cover inner hole wall and wheel shaft outer wall.
Further, first oil transportation hole and the second oil transportation hole are blocked by lubricating cup respectively in the opening of axle ends.
Further, first oil permeable hole is radially distributed with several on wheel shaft, and second oil permeable hole is in wheel shaft
On be radially distributed with several.
Further, the oil groove is circumferentially evenly arranged on annular boss.
Compared with the prior art, the utility model has prominent and beneficial technical effects that:
The utility model lubricant passage way uses one-way passage form, and lubricating oil passes through axial oil transportation hole and radial saturating oil
Hole is realized to be discharged in the bearing side perfusion other side；New oil will be ground by bearing side in original oil body and use process
The fine metal abrasive dust discharge that damage generates, realizes the replacement of new and old lubricating oil, and avoid the dismantling to freely-supported wheel.
Detailed description of the invention
Fig. 1 is the outline drawing of freely-supported wheel in the utility model embodiment；
Fig. 2 is the cross-sectional view of freely-supported wheel in the utility model embodiment；
Fig. 3 is the structural exploded view one of freely-supported wheel in the utility model embodiment；
Fig. 4 is the structural exploded view two of freely-supported wheel in the utility model embodiment；
Fig. 5 is the internal oil passages figure of freely-supported wheel in the utility model embodiment；
Fig. 6 is the enlarged drawing in Fig. 2 at A.
Appended drawing reference: 1, wheel hub；2, bearing cap；2a, outer bearing cover；2a1, outer ring boss；2b, inside cap；2b1,
Annular boss；2b2, saturating oil groove；3, wheel shaft；4, lubricating cup；5, stop axillare；6, microcephaly's retaining ring；7, bearing；7a, bearing inner race；
7b, bearing outer ring；M1, sealing ring；M2, sealing ring；M3, sealing ring；U1, the first oil transportation hole；U2, the second oil transportation hole；T1, first
Oil permeable hole；T2, the second oil permeable hole；Q1, the first oil pocket；Q2, the second oil pocket.
Specific embodiment
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing.
A kind of freely-supported wheel with oil passage, includes wheel shaft 3, wheel hub 1 and bearing 7 combined with Figure 1 and Figure 2, and wheel shaft 3 is worn
If being fixed in bearing inner race 7a, wheel hub 1, which is arranged, is fixed on the periphery bearing outer ring 7b；7 type of the present embodiment middle (center) bearing is aligning
Roller bearing 7, to reduce the influence that frictional force when load-carrying is bent partially with adaptation rotor.
In conjunction with Fig. 2 and Fig. 6, bearing cap 2 is set in 7 two sides of bearing, bearing cap 2 include concentric fit bearing cover 2a and
Internal bearing cover 2b, internal bearing cover 2b, which are arranged, to be fixed on wheel shaft 3, and sealing ring M3, bearing are arranged between internal bearing cover 2b and wheel shaft 3
Outer cover 2a clearance fit is on the outside of internal bearing cover 2b and the mating surface of the two is spherical surface, and bearing cover 2a is interior concave spherical surface, bearing
Inner cover 2b is outer convex spherical, and setting sealing ring M2 guarantees sealing between the mating surface of the two；Above-mentioned mating spherical surfaces mode to pacify
It is not in interior outer bearing cover 2a interference situation for there are low-angle drift conditions under large span holding state during dress,
Improve the safety and reliability of freely-supported wheel design.Wherein, the centre of sphere of spherical surface is consistent with 7 centre of gyration of self-aligning roller bearing,
To realize rotation with one heart.Wherein, the outer bearing cover 2a extends to 1 two sides of wheel hub, and sealing ring M1 reality is arranged between wheel hub 1
Now sealing cooperation.
In conjunction with Fig. 2-4, it is provided with outer ring boss 2a1 on the inside of bearing cover 2a, annular is set on the inside of internal bearing cover 2b
Boss 2b1, outer ring boss 2a1 are contradicted for limiting in the two sides bearing outer ring 7b, and annular boss 2b1 is contradicted for limiting
The two sides bearing inner race 7a；The first oil pocket Q1 and are formed respectively between bearing cover 2a, internal bearing cover 2b and 7 two sides of bearing
Two oil pocket Q2, the first oil pocket Q1 and the second oil pocket Q2 are respectively communicated with the peace that roller is installed between bearing outer ring 7b and bearing inner race 7a
It behave affectedly.
In conjunction with Fig. 2, Fig. 5,3 one end of wheel shaft is axially provided with the first oil transportation hole U1, and 3 other end of wheel shaft is axially provided with second
Oil transportation hole U2；First oil transportation hole U1 and the second oil transportation hole end U2 are not connected to.The first oil transportation hole end U1 is by being arranged radially
The first oil permeable hole T1 on wheel shaft 3 is connected to the first ipsilateral oil pocket Q1, and the second oil transportation hole end U2 is by being radially arranged in wheel
The second oil permeable hole T2 on axis 3 is connected to the second ipsilateral oil pocket Q2.Due between the first oil pocket Q1 and the first oil permeable hole T1, second
There is annular boss 2b1 barrier between oil pocket Q2 and the second oil permeable hole T2, is parched if can be opened up on interior annular convex platform 2b1
Oil groove 2b2 is solved, and saturating oil groove 2b2 is preferably circumferentially evenly arranged on annular boss 2b1 (referring to Fig. 3).Meanwhile in order to increase lubrication
The diffusion velocity of oil, the first oil permeable hole T1 and the radially-arranged item number of the second oil permeable hole T2 can be a plurality of.
When normal operating conditions, the first oil transportation hole U1 and the second oil transportation hole U2 3 end of wheel shaft opening respectively by oil
Cup 4 blocks.It participates in Fig. 2 and Fig. 5 and pulls out the lubricating cup 4 at both ends when needing replacing lubricating oil, be passed through newly in the first oil transportation hole U1
Lubricating oil, new lubrication pass sequentially through the first oil permeable hole T1, saturating oil groove 2b2 along the direction of the arrow in Fig., enter the first oil pocket Q1,
Then the old lubricating oil in the first oil pocket Q1 is pressed against the installation cavity between bearing inner race 7a and bearing outer ring 7b, and finally along
Arrow direction flows to the second oil pocket Q2, the second oil permeable hole T2, is discharged from the opening of the second oil transportation hole U2；When finally from the second oil transportation
When the lubricating oil of hole U2 discharge is relatively clear, then it represents that new and old lubricating oil, which has been replaced, in freely-supported wheel finishes, again wheel shaft 3 beyond the Great Wall
The lubricating cup 4 at both ends.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change
It also should be regarded as the protection scope of the utility model into replacement.
Claims (8)
1. a kind of freely-supported wheel with oil passage, including wheel shaft (3), wheel hub (1) and bearing (7), wheel shaft (3) are tight at bearing
Inner ring (7a), wheel hub (1) are tight at bearing outer ring (7b), bearing (7) two sides be arranged bearing cap (2), bearing cap (2) respectively with wheel
Hub (1), wheel shaft (3) sealing cooperation；(7) one side end face of bearing and adjacent bearing cap (2) form the first oil pocket (Q1), bearing
(7) another side end face and adjacent bearing cap (2) form the second oil pocket (Q2), and the first oil pocket (Q1) and the second oil pocket (Q2) are respectively
The installation cavity being connected between bearing outer ring (7b) and bearing inner race (7a)；
It is characterized by: described wheel shaft (3) one end is axially provided with the first oil transportation hole (U1), wheel shaft (3) other end is axially arranged
There is the second oil transportation hole (U2)；The first oil transportation hole end (U1) is connected by the first oil permeable hole (T1) being radially arranged on wheel shaft (3)
Collude the first oil pocket (Q1) of side, the second oil transportation hole end (U2) passes through the second oil permeable hole for being radially arranged on wheel shaft (3)
(T2) it is connected to ipsilateral the second oil pocket (Q2)；First oil transportation hole (U1) is not connected to axially with the second oil transportation hole (U2).
2. a kind of freely-supported wheel with oil passage according to claim 1, it is characterised in that: the bearing (7) is to adjust
Heart roller bearing (7).
3. a kind of freely-supported wheel with oil passage according to claim 2, it is characterised in that: bearing cap (2) packet
Include bearing cover (2a) and internal bearing cover (2b), internal bearing cover (2b) be set on wheel shaft (3) and with wheel shaft (3) close-fitting, bearing
Outer cover (2a) is slidingly sealed cooperation on the outside of internal bearing cover (2b), and the contact surface of bearing cover (2a) and internal bearing cover (2b) is ball
Face, the spherical surface centre of sphere are consistent with the centre of gyration of self-aligning roller bearing (7).
4. a kind of freely-supported wheel with oil passage according to claim 3, it is characterised in that: the bearing cover (2a)
Outer ring boss (2a1) is arranged in inside, and outer ring boss (2a1) is resisted against the end face bearing outer ring (7b)；The internal bearing cover
Annular boss (2b1) is set on the inside of (2b), annular boss (2b1) is resisted against the end face bearing inner race (7a), annular boss
Saturating oil groove (2b2) is arranged in (2b1).
5. a kind of freely-supported wheel with oil passage according to claim 3, it is characterised in that: the bearing cover (2a)
Sealing ring (M1) is set between medial surface and wheel hub (1) end face；Between bearing cover (2a) and the contact surface of internal bearing cover (2b)
It is arranged sealing ring (M2)；Sealing ring (M3) is set between internal bearing cover (2b) inner hole wall and wheel shaft (3) outer wall.
6. a kind of freely-supported wheel with oil passage according to claim 1, it is characterised in that: first oil transportation hole
(U1) it is blocked respectively by lubricating cup (4) with opening of the second oil transportation hole (U2) in wheel shaft (3) end.
7. a kind of freely-supported wheel with oil passage according to claim 1, it is characterised in that: first oil permeable hole
(T1) several are radially distributed on wheel shaft (3), second oil permeable hole (T2) is radially distributed with several on wheel shaft (3)
It is a.
8. a kind of freely-supported wheel with oil passage according to claim 4, it is characterised in that: the oil groove (2b2)
Circumferentially it is evenly arranged on annular boss (2b1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821321276X | 2018-08-15 | ||
| CN201821321276 | 2018-08-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208995995U true CN208995995U (en) | 2019-06-18 |
Family
ID=66803881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821678303.9U Withdrawn - After Issue CN208995995U (en) | 2018-08-15 | 2018-10-16 | A kind of freely-supported wheel with oil passage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208995995U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110835902A (en) * | 2018-08-15 | 2020-02-25 | 上海勘测设计研究院有限公司 | Simple supporting wheel with lubricating oil passage |
| AT526199A1 (en) * | 2022-05-31 | 2023-12-15 | Andritz Hydro Gmbh | Contactor for a hydroelectric power plant |
-
2018
- 2018-10-16 CN CN201821678303.9U patent/CN208995995U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110835902A (en) * | 2018-08-15 | 2020-02-25 | 上海勘测设计研究院有限公司 | Simple supporting wheel with lubricating oil passage |
| AT526199A1 (en) * | 2022-05-31 | 2023-12-15 | Andritz Hydro Gmbh | Contactor for a hydroelectric power plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190618 Effective date of abandoning: 20220805 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190618 Effective date of abandoning: 20220805 |