CN214248022U - High-sealing water pump bearing - Google Patents

Abstract

The utility model discloses a high sealed water pump bearing, including bearing inner race and bearing inner race, first ring channel has been seted up at bearing inner race internal perisporium both ends, correspond first ring channel position on the bearing inner race periphery wall and seted up the second ring channel, two all tight the tight lip that rises that is provided with that rises in the first ring channel, the tight lip that rises extends to the second ring channel has first seal lip and second seal lip, first seal lip and the tight cooperation setting that rises of second ring channel inner wall, the second seal lip is supported and is detained on the bearing inner race periphery wall, the draw-in groove has been seted up between first seal lip and the second seal lip, the draw-in groove is cyclic annular setting, the second ring channel is protruding to have the snap ring that is used for inserting the draw-in groove towards the draw-in groove direction, snap ring periphery wall and draw-in groove internal perisporium clearance fit are formed with the dead slot. The utility model provides a relatively poor problem of prior art normal water pump bearing sealing performance.

Description

High-sealing water pump bearing

Technical Field

The utility model relates to a bearing technical field specifically is a high sealed water pump bearing.

Background

The bearing is an important part in the modern mechanical equipment. Its main function is to support the mechanical rotator, reduce the friction coefficient in its motion process and ensure its rotation precision. The water pump bearing is a bearing arranged on the water pump and is inserted into the bearing inner ring through the external mandrel, the precision requirement is high, the sealing requirement is also high, but the sealing performance of the water pump bearing in the prior art is poor, so that external impurities enter the bearing to influence the rotating speed of the bearing, and the sealing element is easily separated from the bearing under the condition of high-speed rotation of the bearing inner ring, so that the grease in the bearing is leaked out, and the external impurities enter the bearing to cause the bearing to lose efficacy.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a high sealed water pump bearing is for solving the relatively poor problem of prior art water pump bearing sealing performance.

In order to achieve the purpose, the utility model provides a high sealed water pump bearing, including bearing inner race and bearing inner race, first ring channel has been seted up at bearing inner race internal perisporium both ends, correspond first ring channel position on the bearing inner race periphery wall and seted up the second ring channel, two all tight the tight lip that rises that is provided with that rises in the first ring channel, the tight lip that rises extends to the second ring channel has first seal lip and second seal lip, the tight cooperation setting that rises of first seal lip and second ring channel inner wall, the second seal lip is supported and is detained on the bearing inner race periphery wall, the draw-in groove has been seted up between first seal lip and the second seal lip, the draw-in groove is cyclic annular setting, the second ring channel is protruding to have the snap ring that is used for inserting the draw-in groove towards the draw-in groove direction, snap ring periphery wall and draw-in groove internal perisporium clearance fit are formed with the dead slot.

The technical scheme is adopted, and the method has the advantages that: in the technology, the arrangement that the clamping ring is in inserting fit with the clamping groove improves the sealing performance of the bearing, and the hollow groove formed by the clearance fit of the outer peripheral wall of the clamping ring and the inner peripheral wall of the clamping groove prevents the clamping ring from contacting with the clamping groove, so that the influence of friction torque generated by the contact of the clamping ring and the clamping groove on the rotating speed of the bearing when the inner ring of the bearing rotates at high speed is avoided; first seal lip and the tight complex setting of second annular groove inner wall rise in the above-mentioned technique and have further increased the sealing performance of bearing, ensure that external impurity can not get into the inside bearing rotational speed that influences of bearing, further avoid external impurity to get into the inside bearing that leads to of bearing inefficacy, and the second seal lip supports the sealing performance who detains the increase bearing that setting on the bearing inner race periphery wall can be further.

The utility model discloses further set up: sunken spacing groove in the draw-in groove internal perisporium, the spacing groove is cyclic annular setting, the cooperation groove has been seted up to hoop on the snap ring periphery wall, the cooperation inslot is provided with the spacing ring that is used for making the dead slot sealed or mediation, a spacing ring tip is the link, and another tip is the sealed end, the cooperation of pegging graft of spacing ring link and cooperation groove, the spacing ring is made by shape memory alloy material, the spacing ring has first form under first temperature range, the spacing ring has the second form under the second temperature range, the spacing ring is its sealed end and the laminating of snap ring periphery wall under first form, its sealed end of spacing ring is buckled and is covered the dead slot opening part and support and detain on spacing groove internal perisporium under the second form.

The technical scheme is adopted, and the method has the advantages that: the limiting ring is made of shape memory alloy material, it can be made of nickel-titanium memory alloy material, this memory alloy possesses different forms under different temperature ranges, its variable phase temperature range is 30 degrees to 45 degrees, the temperature range is the second temperature range below 30 degrees, and the variable phase temperature range is the first temperature range, when the bearing operates, its internal temperature can reach more than 30 degrees, at this moment the limiting ring begins to deform, its sealed end is buckled gradually and laminated with the peripheryof wall of the snap ring, at this moment the empty groove is not sealed by the sealed end, and the sealed end breaks away from the inner wall of the limiting groove, at this moment the sealed end does not contact with inner wall of the limiting groove, adopt the above-mentioned technical scheme, guarantee the bearing inner race will not influence the bearing to operate because of the friction torque between sealed end and limiting groove when rotating at a high speed; when the bearing stop operation, the inside temperature of bearing is less than 30 degrees gradually, the inside temperature of bearing is changed into the second temperature range by first temperature range gradually this moment, spacing ring seal end begins to deform and buckles this moment, it covers the dead slot opening part and supports to detain on spacing inslot perisporium, make outside impurity can not get into inside the bearing through the dead slot, ensure that outside impurity can not get into the inside bearing rotational speed that influences of bearing, the setting of above-mentioned technique has improved the operating efficiency and the life of bearing, the further sealing performance who has improved the bearing, and ensure that the inside grease of bearing can not leak when the stop operation of bearing.

The utility model discloses further set up: a steel framework is arranged in the tensioning lip.

The technical scheme is adopted, and the method has the advantages that: the steel framework improves the hardness of the tensioning lip, ensures that the tensioning lip cannot be separated from the bearing when the bearing is subjected to axial radial load, and further improves the stability of the tensioning lip on the bearing.

The utility model discloses further set up: the second sealing lip is in tight fit with the outer peripheral wall of the bearing inner ring.

The technical scheme is adopted, and the method has the advantages that: the second sealing lip is arranged in tight fit with the peripheral wall of the bearing inner ring, so that the sealing performance of the bearing is further improved.

Drawings

FIG. 1 is a sectional view of the present invention in use;

fig. 2 is a cross-sectional view of the stop collar of the present invention in an unused state.

Detailed Description

The utility model provides a high sealed water pump bearing, including bearing inner race 1 and bearing inner race 4, first ring channel 11 has been seted up at bearing inner race 1 internal perisporium both ends, bearing inner race 4 periphery wall is gone up and is seted up second ring channel 41 corresponding first ring channel 11 position, two all tight the setting of rising in the first ring channel 11 rises and is provided with the tight lip 2 that rises, the tight lip 2 that rises extends to second ring channel 41 has first seal lip 21 and second seal lip 22, the tight cooperation setting of rising of first seal lip 21 and second ring channel 41 inner wall, second seal lip 22 supports and detains on bearing inner race 4 periphery wall, set up draw-in groove 23 between first seal lip 21 and the second seal lip 22, draw-in groove 23 is the annular setting, second ring channel 41 is protruding to have the snap ring 3 that is used for inserting draw-in groove 23 towards draw-in groove 23 direction, snap ring 3 and draw-in groove 23 internal perisporium clearance fit form has empty groove 24, the retaining ring is characterized in that a retaining groove 231 is formed in the inner peripheral wall of the clamping groove 23 in a sunken manner, the retaining groove 231 is annularly arranged, a matching groove 31 is formed in the outer peripheral wall of the clamping ring 3 in an annular manner, a retaining ring 32 used for sealing or dredging the empty groove 24 is arranged in the matching groove 31, one end of the retaining ring 32 is a connecting end 321, the other end of the retaining ring is a sealing end 322, the connecting end 321 of the retaining ring 32 is in inserting fit with the matching groove 31, the retaining ring 32 is made of a shape memory alloy material, the retaining ring 32 has a first shape in a first temperature range, the retaining ring 32 has a second shape in a second temperature range, the sealing end 322 of the retaining ring 32 is attached to the outer peripheral wall of the clamping ring 3 in the first shape, the sealing end 322 of the retaining ring 32 is bent to cover the opening of the empty groove 24 and is abutted to and buckled on the inner peripheral wall of the retaining groove 231 in the second shape, and a steel framework 25 is arranged in the tension 2, the second sealing lip 22 is in tight fit with the outer peripheral wall of the bearing inner ring 4.

The spacing ring 32 is made of shape memory alloy material, it can be made of nickel titanium memory alloy material, this memory alloy possesses different forms under different temperature ranges, its variable phase temperature range is 30 degrees to 45 degrees, the temperature range is the second temperature range below 30 degrees, and the variable phase temperature range is the first temperature range, when the bearing operates, its internal temperature can reach more than 30 degrees, at this moment the spacing ring 32 begins to deform, its sealed end 322 is buckled gradually and laminated with the peripheral wall of the snap ring 3, at this moment the empty groove 24 is not sealed by the sealed end 322, and the sealed end 322 breaks away from the inner wall of the spacing groove 231, at this moment the sealed end 322 does not contact with inner wall of the spacing groove 231; when the bearing stops operating, the temperature inside the bearing is gradually lower than 30 degrees, at this time, the temperature inside the bearing is gradually changed from the first temperature range to the second temperature range, and at this time, the sealing end 322 of the limit ring 32 starts to deform and bend, covers the opening of the empty groove 24 and abuts against and is buckled on the inner peripheral wall of the limit groove 231, so that external impurities cannot enter the inside of the bearing through the empty groove 24.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, and it should be understood by those skilled in the art that the present invention is not limited by the above embodiments, but only by the principle of the present invention, and the present invention can be modified without departing from the spirit and scope of the present invention, and all of the modifications and improvements fall within the scope of the present invention.

Claims (4)

1. The utility model provides a high sealed water pump bearing which characterized in that: including bearing inner race and bearing inner race, first ring channel has been seted up at bearing inner race internal perisporium both ends, correspond first ring channel position on the bearing inner race periphery wall and seted up the second ring channel, two all rise to rise in the first ring channel and tightly be provided with the tight lip that rises, the tight lip that rises extends to the second ring channel has first seal lip and second seal lip, first seal lip rises with the second ring channel inner wall and tightly cooperates the setting, the second seal lip supports to detain on the bearing inner race periphery wall, the draw-in groove has been seted up between first seal lip and the second seal lip, the draw-in groove is cyclic annular setting, the protruding snap ring that is used for inserting the draw-in groove of second ring channel court draw-in groove direction, snap ring periphery wall and draw-in groove internal perisporium clearance fit are formed with the dead slot.

2. The high seal water pump bearing of claim 1, wherein: sunken spacing groove in the draw-in groove internal perisporium, the spacing groove is cyclic annular setting, the cooperation groove has been seted up to hoop on the snap ring periphery wall, the cooperation inslot is provided with the spacing ring that is used for making the dead slot sealed or mediation, a spacing ring tip is the link, and another tip is the sealed end, the cooperation of pegging graft of spacing ring link and cooperation groove, the spacing ring is made by shape memory alloy material, the spacing ring has first form under first temperature range, the spacing ring has the second form under the second temperature range, the spacing ring is its sealed end and the laminating of snap ring periphery wall under first form, its sealed end of spacing ring is buckled and is covered the dead slot opening part and support and detain on spacing groove internal perisporium under the second form.

3. The high seal water pump bearing of claim 1, wherein: a steel framework is arranged in the tensioning lip.

4. The high seal water pump bearing of claim 1, wherein: the second sealing lip is in tight fit with the outer peripheral wall of the bearing inner ring.

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