CN208804125U - The sealing device that water pump shaft of engine connecting shaft is held - Google Patents
The sealing device that water pump shaft of engine connecting shaft is held Download PDFInfo
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- CN208804125U CN208804125U CN201821393705.4U CN201821393705U CN208804125U CN 208804125 U CN208804125 U CN 208804125U CN 201821393705 U CN201821393705 U CN 201821393705U CN 208804125 U CN208804125 U CN 208804125U
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- ring
- water pump
- bearing
- sealing
- drip
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- 238000007789 sealing Methods 0.000 title claims abstract description 110
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 238000009434 installation Methods 0.000 claims description 12
- 238000005096 rolling process Methods 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 18
- 239000007788 liquid Substances 0.000 abstract description 9
- 239000002826 coolant Substances 0.000 abstract description 6
- 230000006378 damage Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- -1 sandstone Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008450 motivation Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model is to belong to sealing device that the water pump shaft of engine connecting shaft of the sealing device of water pump shaft connecting bearings is held for automobile engine water pump.Drip ring internal diameter protrusion is taken to stretch in bearing, drip ring outer diameter protrusion is stretched in bearing, the internal diameter clearance seal with outer ring；Sealing ring epipharynx is tilted to bearing, it is interference fitted with axis, sealing ring outer lip is to bearing outer incline, it is interference fitted with the inner face of drip ring internal diameter protrusion, sealing ring lateral lip is tilted to the direction of bearing outer shaft bearing outer-ring, the technical issues of with the technical solution of drip ring inner sidewall interference fit, solving available engine water pump shaft connecting bearings coolant liquid and enter in throw rijng, reducing bearing seal effect and service life.
Description
Technical field
The utility model belongs to the sealing device of water pump shaft connecting bearings, and it is close to be concretely that water pump shaft of engine connecting shaft is held
Seal apparatus.
Background technique
Water pump shaft of engine connecting shaft, which is held, installs water seal in one end of installation impeller, and water seal is produced by the friction of rotating ring and stationary ring
Raw dynamic sealing, engine coolant are lubricated between rubbing surface, therefore, unavoidably have coolant liquid and leak into water seal
Between bearing.Although water pump shaft of engine connecting shaft holds and also uses sealing ring and be sealed, due to infiltrating effect, liquid
Bearing inner is easily infiltrated into, coolant liquid, which will enter Bearing inner, to play destruction to bearing lubrication, and decline bearing reliability,
Significantly reduce the service life of bearing.Chinese utility model patent, Authorization Notice No. CN 207246247U, a kind of " automobile water
Pump three lip seals of shaft connecting bearing " disclose a kind of three lip seals and throw rijng is mounted on the auto pump axis company at water seal end
Associated sealing arrangement for bearings, three lip seals and throw rijng increase the sealing performance at water pump shaft connecting bearings water seal end, waterproof performance and
Waterproof effect is improved.But the throw rijng due to being fixed on axis only forms with upper and lower sealing lip and contacts sealing,
And cooperation is not formed with bearing outer ring, engine coolant can entering in throw rijng without blocking, prolonged this
In working environment, sealing lip functional reliability is destroyed, and sealing effect and service life reduce.
Utility model content
The utility model, which will solve available engine water pump shaft connecting bearings, to stop engine coolant to enter throw rijng
It is interior, the technical issues of reducing bearing seal effect and service life, provide a kind of hair that can effectively enhance sealing effect
The sealing device of motivation water pump shaft connecting bearings.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the utility model is that: a kind of water pump shaft of engine connecting shaft
The sealing device held holds the drip ring of installation impeller side, the sealing including sealing ring and in water pump shaft of engine connecting shaft
Circle and drip ring are mounted between bearing outer ring and axis；The internal diameter of outer ring is equipped with outer rollaway nest, and the outer diameter of axis is equipped with interior rollaway nest,
Outer rollaway nest is corresponding with interior rollaway nest；Rolling element is mounted between outer rollaway nest and interior rollaway nest by retainer；Drip ring internal diameter protrusion
It stretches in bearing, is interference fitted with axis, drip ring outer diameter protrusion is stretched in bearing, the internal diameter clearance seal with outer ring；Rolling element
The outer ring in outside is equipped with annular groove, and the outer rim and annular groove of sealing ring are interference fitted, and there is sealing ring epipharynx at the internal diameter position of sealing ring
With sealing ring outer lip, sealing ring epipharynx is tilted to bearing, is interference fitted with axis, sealing ring outer lip is to bearing outer incline, with gear
The inner face of water ring internal diameter protrusion is interference fitted, and the outer end face of sealing ring has a sealing ring lateral lip, and sealing ring lateral lip is to bearing outer bearing
The direction of outer ring tilts, and is interference fitted with drip ring inner sidewall.
Water pump shaft of engine connecting shaft holds interior filling lubricating grease.Water pump shaft of engine connecting shaft has held two sides, water pump shaft of engine
The other side that connecting shaft holds the side of installation impeller and water pump shaft of engine connecting shaft is held.The sealing ring epipharynx that inwardly stretches out and axis it is outer
Diameter contact, slightly interference primarily form radial seal, the lubricating grease leakage for preventing Bearing inner from filling；Outwardly directed sealing
Enclose the inner faces contact of outer lip and drip ring internal diameter protrusion, slightly interference primarily forms radial seal, prevent Bearing outer solid or
The intrusion of person's liquid；Sealing ring lateral lip outer ring direction extending obliquely to outside bearing, the side of sealing ring lateral lip and drip ring inside
Wall contact, slightly interference form axial seal, prevent the intrusion of Bearing outer solid or liquid.Drip ring internal diameter position mistake
It is full of and is ordinatedly fixed on axis, drip ring rotates together with the axis, and sealing ring is fixed on motionless on outer ring, is formed between sound close
Envelope.The inner-diameter portion for stretching to the drip ring outer diameter protrusion and outer ring in bearing forms clearance seal, drip ring rotation, in drip ring
Under outer diameter protrusion and drip ring lateral wall collective effect, effectively get rid of dust, sandstone, mud and with mordant liquid etc.
Appearance is held off axis, even if having dust, sandstone, mud and to invade drip ring inner sidewall with mordant liquid etc. be also extremely
Micro, compared with existing auto pump shaft connecting bearing, the working environment of sealing ring lateral lip has obtained thoroughly improving, and effectively increases
The strong sealing effect of drip ring.Drip ring and sealing ring form dual-seal.
Gap 0.2-0.4mm between drip ring outer diameter protrusion and bearing outer ring internal diameter, the inner end of drip ring outer diameter protrusion
The sealing ring position gap 0.2-0.4mm of face corresponding thereto.Less than 0.2mm, although can be improved sealing effect, there is generation
The hidden danger of friction；Greater than 0.4mm, sealing effect is obviously deteriorated.
The sealing ring of the other side is held in water pump shaft of engine connecting shaft and drip ring is mounted between bearing outer ring and axis, water blocking
Ring internal diameter protrusion is stretched in bearing, is interference fitted with axis, drip ring outer diameter protrusion is stretched in bearing, close with the internal diameter gap of outer ring
Envelope；Outer ring on the outside of rolling element is equipped with annular groove, and the outer rim and annular groove of sealing ring are interference fitted, and the internal diameter position of sealing ring has close
Seal epipharynx and sealing ring outer lip, sealing ring epipharynx is tilted to bearing, is interference fitted with axis, and sealing ring outer lip is to bearing flare
Tiltedly, it is interference fitted with the inner face of drip ring internal diameter protrusion, the outer end face of sealing ring has a sealing ring lateral lip, and sealing ring lateral lip is to bearing
The direction of outer shaft bearing outer-ring tilts, and is interference fitted with drip ring inner sidewall.The sealing performance of bearing two sides is all significantly mentioned
It is high.With the universal and development of automobile, the use occasion of automobile is more and more, and use environment becomes increasingly complex, weather, big compression ring
Border, dust, sandstone, mud and bearing seal can all be had an impact with mordant ponding etc., these undesirable elements pair
The sealing of bearing two sides can all generate destruction, in some cases, install belt pulley for water pump shaft connecting bearings or ring flange is another
The destruction of side is more severe, affects water pump shaft of engine connecting shaft and holds whole sealing effect and service life.
The drip ring outer diameter protrusion of the other side and the internal diameter gap 0.2-0.4mm of outer ring are held in water pump shaft of engine connecting shaft,
The sealing ring position gap 0.2-0.4mm of the inner face of drip ring outer diameter protrusion corresponding thereto.
Water pump shaft of engine connecting shaft holds the drip ring of installation impeller side between sealing ring and water seal, on the outside of drip ring
Wall is protruded in the outside of water seal side bearing face.Installation impeller side, water seal and water seal one are held in water pump shaft of engine connecting shaft
The distance of side bearing end face is larger, therefore drip ring lateral wall protrusion is in the outside of water seal side bearing face, without with water
Envelope is in contact, and outer ring direction stretching, extension of the sealing ring lateral lip to outside bearing possesses longer space, and contact stress is small, frictional resistance
Sealing effect that is small, having had；On the premise of ensuring tightness, rolling element can be arranged closer to bearing face, for axis
The bearing capacity held makes moderate progress；This keeps the installation of the bearing sealed ring and drip ring of water seal side more simple.
Water pump shaft of engine connecting shaft hold installation impeller side drip ring lateral wall protrusion water seal side bearing face away from
From for 1.5-3.5mm.Less than 1.5mm, too short, contact stress and the friction of outer ring direction stretching, extension of the sealing ring lateral lip to outside bearing
Resistance reduction is not significant, and sealing effect increases unobvious；Greater than 3.5mm, one is fitted without space, and two carry out sealing ring lateral lip mistake
Long growth, damages sealing effect instead.
The drip ring lateral wall that water pump shaft of engine connecting shaft holds the other side is recessed in the side bearing end face.In engine water
Flange or the belt pulley for pumping the other side installation of shaft connecting bearing are extremely close with the side bearing end face, and drip ring lateral wall is moderately
Recess eliminates flange or belt pulley contacts the hidden danger of friction with drip ring in the side bearing end face.
Water pump shaft of engine connecting shaft holds drip ring lateral wall recess 0.2-1.0mm in the side bearing end face of the other side.
Less than 0.2mm, it is difficult to guarantee that eliminating flange or belt pulley contacts the hidden danger of friction with drip ring；Greater than 1.0mm, to bearing totality
Structure and load have an adverse effect.
The sealing ring that water pump shaft of engine connecting shaft holds two sides is identical, and water pump shaft of engine connecting shaft holds the drip ring phase of two sides
Together.It can be interchanged, therefore can reduce the workload of bearing assembling process, prevent loading error.
Drip ring is stamped to form by stainless steel resistant material.
The utility model has the advantages that: the sealing ring sealing effect of use is good.Stretch to the drip ring outer diameter protrusion in bearing
Clearance seal is formed with the inner-diameter portion of outer ring, effectively by dust, sandstone, mud and with mordant liquid etc. throws away axis
Appearance is held, the working environment of sealing ring lateral lip has obtained thoroughly improving, and effectively enhances the sealing effect of drip ring.It is sending out
Drip ring is also installed in the other side of motivation water pump shaft connecting bearings, and the sealing performance of bearing two sides is all significantly improved.Water blocking
The space that ring lateral wall protrusion is stretched in the outside of water seal side bearing face, the outer outer ring direction of the oriented bearing of sealing ring lateral lip,
To possess longer length, contact stress is small, and frictional resistance is small, the sealing effect having had；On the premise of ensuring tightness,
Rolling element can be arranged closer to bearing face, be made moderate progress for the bearing capacity of bearing；The bearing sealed ring of water seal side
It is more simple with the installation of drip ring.Drip ring lateral wall recess eliminates flange in the other side that water pump shaft of engine connecting shaft is held
Or belt pulley contacts the hidden danger of friction with drip ring.
Detailed description of the invention
Fig. 1 is the structural representation that the utility model sealing device is mounted on that a water pump shaft of engine connects bearing embodiment
Figure；
Fig. 2 is the structure enlargement diagram of Fig. 1 embodiment bearing installation impeller side；
Fig. 3 is the structure enlargement diagram of the other side of Fig. 1 embodiment bearing.
Specific embodiment
Attached drawing is that the utility model sealing device is mounted on the structure that a water pump shaft of engine connecting shaft holds embodiment and shows
It is intended to.
Be described with reference to the drawings: water pump shaft of engine connecting shaft holds interior filling lubricating grease.There are two being set on the internal diameter of bearing outer ring 1
Outer rollaway nest is set on the outer diameter of axis 2 there are two interior rollaway nest, and outer rollaway nest is corresponding with interior rollaway nest.The rolling element 4 of the present embodiment is cylinder
The combination of roller and steel ball.Cylindrical roller and steel ball pass through retainer respectively and are mounted between outer rollaway nest and interior rollaway nest.Bearing two
The outer ring 1 of the external side of side roll is equipped with annular groove, and the outer rim and annular groove of rubber seal 3 are interference fitted.Drip ring 5 is SUS304
Stainless steel plate stamping parts.The drip ring 5 of two sides is located at the outside of bearing both sides sealing circle 3, and drip ring internal diameter protrusion 12 stretches to axis
It in holding, is interference fitted with axis 2, drip ring outer diameter protrusion 13 is stretched in bearing, the internal diameter gap 0.3mm with outer ring 1, outside drip ring
The 3 position gap 0.3mm of sealing ring of the inner face of diameter protrusion 13 corresponding thereto.There is sealing ring epipharynx 6 at the internal diameter position of sealing ring 3
With sealing ring outer lip 7, sealing ring epipharynx 6 is tilted to bearing, contacts with axis 2, slightly interference, and sealing ring outer lip 7 is to outside bearing
Inclination, the inner faces contact with drip ring internal diameter protrusion 12, slightly interference；The outer end face of sealing ring 3 has sealing ring lateral lip 8, sealing
It encloses lateral lip 8 and tilts stent to the direction of bearing outer shaft bearing outer-ring 1, contacted with drip ring inner sidewall 10, slightly interference.In engine
Water pump shaft connecting bearings install impeller side, and between sealing ring 3 and water seal, drip ring lateral wall 11 is protruded in water drip ring 5
Seal the external 2.5mm of side bearing face 9；In the other side that water pump shaft of engine connecting shaft is held, the recess of drip ring lateral wall 11 exists
0.5mm in the side bearing end face 9.The sealing ring 3 and drip ring 5 of bearing two sides are identical, can be interchanged, therefore can reduce bearing
The workload of assembling process, prevents loading error.
Claims (10)
1. a kind of sealing device that water pump shaft of engine connecting shaft is held, including sealing ring (3) and peace is held in water pump shaft of engine connecting shaft
Fill impeller side drip ring (5), it is characterised in that the sealing ring (3) and drip ring (5) be mounted on bearing outer ring (1) and
Between axis (2)；The internal diameter of outer ring (1) is equipped with outer rollaway nest, and the outer diameter of axis (2) is equipped with interior rollaway nest, outer rollaway nest and interior rollaway nest phase
It is corresponding；Rolling element is mounted between outer rollaway nest and interior rollaway nest by retainer；Drip ring internal diameter raised (12) stretches in bearing, with
Axis (2) interference fit, drip ring outer diameter raised (13) stretch in bearing, the internal diameter clearance seal with outer ring (1)；On the outside of rolling element
Outer ring (1) be equipped with annular groove, the outer rim of sealing ring (3) and annular groove are interference fitted, and there is sealing ring at the internal diameter position of sealing ring (3)
Epipharynx (6) and sealing ring outer lip (7), sealing ring epipharynx (6) is tilted to bearing, is interference fitted with axis (2), sealing ring outer lip
(7) it to bearing outer incline, is interference fitted with the inner face of drip ring internal diameter raised (12), the outer end face of sealing ring (3) has sealing ring
Lateral lip (8), sealing ring lateral lip (8) tilt to the direction of bearing outer shaft bearing outer-ring (1), match with drip ring inner sidewall (10) interference
It closes.
2. the sealing device that water pump shaft of engine connecting shaft according to claim 1 is held, it is characterised in that drip ring outer diameter is convex
Play gap 0.2-0.4mm between (13) and bearing outer ring internal diameter, the inner face of drip ring outer diameter protrusion (13) is corresponding thereto
Sealing ring position gap 0.2-0.4mm.
3. the sealing device that water pump shaft of engine connecting shaft according to claim 1 is held, it is characterised in that in engine water pump
The sealing ring (3) and drip ring (5) of the shaft connecting bearing other side are mounted between bearing outer ring (1) and axis (2), the sealing ring of two sides
(3) identical with the structure of drip ring (5) and matching relationship.
4. the sealing device that water pump shaft of engine connecting shaft according to claim 3 is held, it is characterised in that in engine water pump
The internal diameter gap 0.2-0.4mm of the drip ring outer diameter of the shaft connecting bearing other side raised (13) and outer ring (1), drip ring outer diameter protrusion
(13) the sealing ring position gap 0.2-0.4mm of inner face corresponding thereto.
5. the sealing device that water pump shaft of engine connecting shaft according to claim 1 is held, it is characterised in that water pump shaft of engine
The drip ring (5) that connecting shaft holds installation impeller side is located between sealing ring (3) and water seal, and drip ring lateral wall (11) is protruded in water
Seal the outside of side bearing face (9).
6. the sealing device that water pump shaft of engine connecting shaft according to claim 5 is held, it is characterised in that water pump shaft of engine
The distance that connecting shaft holds drip ring lateral wall (11) protrusion water seal side bearing face (9) of installation impeller side is 1.5-3.5mm.
7. the sealing device that water pump shaft of engine connecting shaft according to claim 3 is held, it is characterised in that water pump shaft of engine
Connecting shaft holds drip ring lateral wall (11) recess of the other side in the side bearing end face (9).
8. the sealing device that water pump shaft of engine connecting shaft according to claim 7 is held, it is characterised in that water pump shaft of engine
The drip ring lateral wall (11) that connecting shaft holds the other side is recessed in the interior 0.2-1.0mm in side bearing end face (9).
9. the sealing device that water pump shaft of engine connecting shaft according to claim 3 is held, it is characterised in that water pump shaft of engine
The sealing ring (3) that connecting shaft holds two sides is identical, and the drip ring (5) that water pump shaft of engine connecting shaft holds two sides is identical.
10. the sealing device that water pump shaft of engine connecting shaft is held described according to claim 1 or 3 or 9, it is characterised in that drip ring
(5) it is stamped to form by stainless steel resistant material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821393705.4U CN208804125U (en) | 2018-08-28 | 2018-08-28 | The sealing device that water pump shaft of engine connecting shaft is held |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821393705.4U CN208804125U (en) | 2018-08-28 | 2018-08-28 | The sealing device that water pump shaft of engine connecting shaft is held |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208804125U true CN208804125U (en) | 2019-04-30 |
Family
ID=66236584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821393705.4U Active CN208804125U (en) | 2018-08-28 | 2018-08-28 | The sealing device that water pump shaft of engine connecting shaft is held |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208804125U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017298A (en) * | 2019-05-15 | 2019-07-16 | 苏州玲珑汽车科技有限公司 | Auto pump shaft connecting bearing and auto pump |
-
2018
- 2018-08-28 CN CN201821393705.4U patent/CN208804125U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017298A (en) * | 2019-05-15 | 2019-07-16 | 苏州玲珑汽车科技有限公司 | Auto pump shaft connecting bearing and auto pump |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 266000 No.10 Xinghua Road, Licang District, Qingdao City, Shandong Province Patentee after: Qingdao Tede Bearing Technology Co.,Ltd. Country or region after: China Address before: 266041 Xinghua Road 10, Licang District, Shandong, Qingdao Patentee before: QINGDAO TAIDE AUTOMOBILE BEARING Co.,Ltd. Country or region before: China |