CN209781480U - Oil-supplementing hub bearing - Google Patents
Oil-supplementing hub bearing Download PDFInfo
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- CN209781480U CN209781480U CN201920107527.2U CN201920107527U CN209781480U CN 209781480 U CN209781480 U CN 209781480U CN 201920107527 U CN201920107527 U CN 201920107527U CN 209781480 U CN209781480 U CN 209781480U
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Abstract
An oil supplementing hub bearing comprises an outer ring, an inner ring, a roller and a sealing ring, wherein the sealing ring, the outer ring and the inner ring are combined together to form a roller cavity, an oil supplementing cavity is arranged in the outer ring, an oil supplementing device is uniformly distributed on the outer circumferential wall of the outer ring, an oil outlet is formed in the inner wall of the outer ring, the oil outlet is communicated with the oil supplementing cavity, a transmission block is arranged on the inner wall of the oil supplementing cavity, one end, close to the oil outlet, of the transmission block extends out of the oil outlet to form a sealing plate, the transmission block is made of a shape memory alloy material and has a first shape at a first temperature and a second shape at a second temperature, the sealing plate is attached to the inner wall of the outer ring to form a seal for the oil supplementing cavity, the transmission block penetrates out of the oil outlet at the second shape to enable the sealing plate to be far away from the inner wall of the outer ring to form communication between the oil supplementing cavity and, the reduction of the working efficiency and the reduction of the service life of the bearing caused by less oil in the bearing are avoided.
Description
Technical Field
The utility model relates to a wheel hub bearing field, concretely relates to mend oily wheel hub bearing.
Background
the main functions of the hub bearing are bearing and providing accurate guide for the rotation of the hub, bearing axial load and radial load, the hub bearing is specially used for hubs of various vehicles, on some special large-scale vehicles, the bidirectional load born by the bearing is large, the grease in the bearing is consumed at an accelerated speed under the condition of bearing the bidirectional load force, grease lubrication has important influence on the service life of the bearing, friction, abrasion, vibration and the like, good lubrication is a necessary condition for ensuring the normal operation of the bearing, according to statistics, about 40 percent of bearing damage is related to poor lubrication, most of the existing oil supplementing structures supplement oil by operators when the operation of the bearing is finished, and the oil can not be supplemented in time when the bearing works, the friction torque of the steel ball can be increased due to the reduction of the grease, the internal damage of the bearing can be caused due to the dry burning phenomenon, and the working efficiency and the service life of the bearing are reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides an oil supplementing hub bearing rises for solving prior art atress too big oil consumption when the bearing operation and can not in time mend oil, leads to bearing friction torque to rise for the problem that bearing work efficiency reduces and life reduces.
The utility model provides an oil supplementing hub bearing, includes outer lane, inner circle, roller, the axial both sides of the outer periphery wall of inner circle are provided with a sealing washer respectively, sealing washer, outer lane and inner circle make up jointly and form the roller cavity, the roller rolls and sets up in the roller cavity, the interior epaxial flange that is equipped with of circle, evenly distributed has the mounting hole that is used for fixed bearing on the flange, be provided with the oil supplementing chamber in the outer lane, the equipartition has a plurality of oil supplementing device that is used for the oil supplementing on the outer lane periphery wall, set up the oil outlet that is used for going out oil to the roller cavity on the outer lane inner wall, oil outlet and oil supplementing chamber intercommunication set up, be provided with the transmission piece on the oil supplementing chamber inner wall, the one end that the transmission piece is close to the oil outlet extends to be formed with the shrouding outward, the transmission piece is made by shape memory alloy material, the transmission block has a second shape at a second temperature, the sealing plate is attached to the inner wall of the outer ring to form sealing of the oil supplementing cavity under the first shape, and the transmission block penetrates out of the oil outlet hole under the second shape to enable the sealing plate to be far away from the inner wall of the outer ring to form communication of the oil supplementing cavity and the roller cavity.
The technical scheme is adopted, and the method has the advantages that: the transmission block is made of shape memory alloy material, the shape memory alloy material can adopt nickel-titanium memory alloy, nickel-titanium-copper memory alloy, iron-based memory alloy, copper-based memory alloy or other materials with memory function, because the hub bearing is in operation, the temperature in the hub bearing is increased due to the stress friction and heating of the hub bearing, the transmission block has a first shape at a first temperature and a second shape at a second temperature, the transmission block can be changed into the second shape when the bearing is in operation and is changed into the first shape when the bearing stops operating, the design value of the martensite inverse phase transformation finishing temperature Af of the memory alloy is generally between 40 and 50 ℃, the temperature of the hub bearing can reach between 50 and 70 ℃ when the hub bearing is in operation, the temperature of the hub bearing for large vehicles can reach between 60 and 110 ℃, so the second temperature is the normal operating temperature of the hub bearing, the first temperature then is less than 40 ℃, normal temperature under 40 ℃ promptly, the drive block volume is unchangeable to make the shrouding paste to establish and form the closure to the oil supply chamber on the outer lane inner wall, when the bearing is in non-operating condition, the shrouding seals to the oil supply chamber and makes the inside grease of oil supply chamber can not leak to the roller intracavity, and when wheel hub bearing operation, make the drive block heated volume become the second form from first form, the oil outlet is worn out to drive block volume grow, make the shrouding keep away from the outer lane inner wall and form the intercommunication of oil supply chamber and roller chamber, the grease flows to the roller chamber from the oil supply intracavity, accomplish the oil supply to the inside of roller chamber, avoid the wheel hub bearing to lead to the accelerated loss of lubricating grease because of being heated too high, thereby make the work efficiency decline of bearing and life's reduction.
The utility model discloses further set up: the oil supplementing device comprises a shell and an oil supplementing pipe arranged in the shell in a sliding mode, a plurality of oil outlets are formed in the peripheral wall of one end of the oil supplementing pipe, oil inlets used for enabling operators to inject oil into the oil supplementing pipe are formed in the other end of the oil supplementing pipe, the oil outlets are communicated with the oil inlets, the operators press the oil inlets to enable the oil supplementing pipe to slide in the shell to form oil outlet of the oil outlets to an oil supplementing cavity, limiting flanges are arranged on the inner wall of the shell, limiting protrusions are arranged on the peripheral wall of the oil supplementing pipe, a reset spring used for enabling the oil supplementing pipe to slide and reset in the shell is sleeved on the oil supplementing pipe, the reset spring abuts between the limiting flanges and the limiting protrusions, and the oil supplementing pipe slides and resets in the shell to.
The technical scheme is adopted, and the method has the advantages that: mend the oil pipe and slided and set up in the casing, slide simultaneously through reset spring and reset for operating personnel is when operating, and the grease can enter into and mend the oil intracavity, mends oil pipe self-reset after the oiling, makes shells inner wall form the closure to the oil-out, prevents that the grease from leaking the bearing outside, has played a sealed effect, has also prevented simultaneously that outside grease from entering into and has mended the oil intracavity.
The utility model discloses further set up: a first waterproof groove and a second waterproof groove are formed in the outer ring close to the flange, and the first waterproof groove and the second waterproof groove are arranged adjacently.
The technical scheme is adopted, and the method has the advantages that: the outer lane of this kind of structure can be before muddy water is close the right side sealing washer, through the most rivers of first water-proof groove water conservancy diversion, and the second is said the water-proof groove and is further led away the rivers that first water-proof groove did not intercept, reduces the volume that muddy water continues to flow to the right side sealing washer, effectively plays the muddy water prevention effect, improves the sealing performance of bearing.
The utility model discloses further set up: the joint of the transmission block and the inner wall of the oil supplementing cavity is provided with a first rubber gasket, and the joint of the transmission block and the sealing plate is provided with a second rubber gasket.
The technical scheme is adopted, and the method has the advantages that: the rubber ring has elastic characteristics and can stretch along with the increase of the volume of the transmission block, the normal work of the transmission block cannot be influenced, and the damage to the oil supplementing cavity caused by the increase of the volume of the transmission block is avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a second configuration of a transmission block;
FIG. 3 is a partial cross-sectional view of portion A of FIG. 1;
Fig. 4 is a schematic view of the opening of the oil replenishing device.
Detailed Description
An oil supplementing hub bearing comprises an outer ring 1, an inner ring 2 and rollers 3, wherein two sealing rings 4 are respectively arranged on two axial sides of the outer circumferential wall of the inner ring 2, the sealing rings 4, the outer ring 1 and the inner ring 2 are jointly combined to form a roller cavity 5, the rollers 3 are arranged in the roller cavity 5 in a rolling manner, a flange rib 21 is arranged on the inner ring 2, mounting holes 22 for fixing the bearings are uniformly distributed on the flange rib 21, an oil supplementing cavity 12 is arranged in the outer ring 1, a plurality of oil supplementing devices 6 for supplementing oil are uniformly distributed on the outer circumferential wall of the outer ring 1, an oil outlet hole 11 for discharging oil to the roller cavity 5 is formed in the inner wall of the outer ring 1, the oil outlet hole 11 is communicated with the oil supplementing cavity 12, a transmission block 7 is arranged on the inner wall of the oil supplementing cavity 12, and a sealing plate 71 is formed by extending one end of the transmission block 7, which is close, the transmission block 7 is made of a shape memory alloy material, the transmission block 7 has a first shape at a first temperature, the transmission block 7 has a second shape at a second temperature, the sealing plate 71 of the transmission block 7 is attached to the inner wall of the outer ring 1 to seal the oil compensation cavity 12 in the first shape, the transmission block 7 penetrates through the oil outlet hole 11 in the second shape to enable the sealing plate 71 to be far away from the inner wall of the outer ring 1 to form communication between the oil compensation cavity 12 and the roller cavity 5, the oil compensation device 6 comprises a shell 62 and an oil compensation pipe 63 slidably arranged in the shell 62, a plurality of oil outlets 64 are formed in the outer peripheral wall of one end of the oil compensation pipe 63, an oil inlet 61 for enabling an operator to inject oil into the oil compensation pipe 63 is arranged at the other end of the oil compensation pipe 63, the oil outlet 64 is communicated with the oil inlet 61, the oil compensation pipe 63 slidably forms oil outlet of the oil outlet 64 to the oil compensation cavity 12 in, be provided with limiting flange 65 on the casing 62 inner wall, be provided with limiting protrusion 66 on the tonifying oil pipe 63 periphery wall, the cover is equipped with the reset spring 67 that is used for making tonifying oil pipe 63 slide in casing 62 and resets on tonifying oil pipe 63, reset spring 67 contradicts between limiting flange 65 and limiting protrusion 66, first capillary groove 13 and second capillary groove 14 have been seted up near flange 21 on outer lane 1, first capillary groove 13 and the adjacent setting of second capillary groove 14, transmission piece 7 is provided with first rubber packing ring 72 with tonifying oil chamber 12 inner wall junction, transmission piece 7 is provided with second rubber packing ring 73 with shrouding 71 junction.
When the bearing operates, the internal temperature of the bearing rises to a second temperature, so that the transmission block 7 deforms, the volume of the transmission block 7 increases to drive the sealing plate 71 to be far away from the outer ring 1, communication between the oil supplementing cavity 12 and the roller cavity 5 is formed, grease flows into the roller cavity 5 from the oil supplementing cavity 12 to form oil supplementing, when the bearing stops operating, the internal temperature of the bearing gradually decreases to a first temperature, namely a normal temperature, the transmission block 7 changes back to a first shape, the volume of the transmission block 7 decreases to drive the sealing plate 71 to displace, so that the sealing plate 71 is attached to the inner wall of the outer ring 1 to form sealing on the oil supplementing cavity 12, when the bearing normally operates, muddy water can guide most of water through the first waterproof groove, the second waterproof groove further guides away the water which is not intercepted by the first waterproof groove, the amount of muddy water which continues to flow to the right side sealing ring 4 is reduced, when the grease in the oil supplementing cavity 12 decreases, an operator supplements the, with oiling equipment to its oil inlet 61, through pressing oil inlet 61 for mend oil pipe 63 and slide in casing 62, expose oil-out 64 outside casing 62, carry out the oiling, the grease enters into in the oil-supplementing pipe 63 through oil inlet 61, and rethread oil-out 64 flows to mending oil chamber 12, realizes the oiling process.
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 an mend oil wheel hub bearing, includes outer lane, inner circle, roller, the axial both sides of the outer periphery wall of inner circle are provided with a sealing washer respectively, sealing washer, outer lane and inner circle make up jointly and form the roller cavity, the roller rolls and sets up in the roller intracavity, the interior epaxial flange that is equipped with of circle, evenly distributed has the mounting hole that is used for fixed bearing on the flange, its characterized in that: be provided with the oil supply chamber in the outer lane, the equipartition has a plurality of to be used for the oil supply device of oil supply on the outer lane periphery wall, offer the oil outlet that is used for going out oil to the roller chamber on the outer lane inner wall, oil outlet and the setting of oil supply chamber intercommunication, be provided with the transmission piece on the oil supply intracavity wall, the one end that the transmission piece is close to the oil outlet extends to the oil outlet and is formed with the shrouding, the transmission piece is made by shape memory alloy material, the transmission piece has first form under first temperature, the transmission piece has the second form under the second temperature, the transmission piece is established on the outer lane inner wall in the shrouding subsides under first form and is formed the closure to the oil supply chamber, the transmission piece is worn out the oil outlet under the second form and is made the shrouding keep away from the intercommunication that the inner wall of outer lane formed.
2. The oil compensating hub bearing of claim 1, wherein: the oil supplementing device comprises a shell and an oil supplementing pipe arranged in the shell in a sliding mode, a plurality of oil outlets are formed in the peripheral wall of one end of the oil supplementing pipe, oil inlets used for enabling an operator to inject oil into the oil supplementing pipe are formed in the other end of the oil supplementing pipe, the oil outlets are communicated with the oil inlets, the oil supplementing pipe slides in the shell to form oil outlet of the oil outlets for an oil supplementing cavity, a limiting flange is arranged on the inner wall of the shell, a limiting protrusion is arranged on the peripheral wall of the oil supplementing pipe, a reset spring used for enabling the oil supplementing pipe to slide in the shell to reset is sleeved on the oil supplementing pipe, and the reset spring abuts between the limiting flange and.
3. The oil compensating hub bearing of claim 1, wherein: a first waterproof groove and a second waterproof groove are formed in the outer ring close to the flange, and the first waterproof groove and the second waterproof groove are arranged adjacently.
4. The oil compensating hub bearing of claim 1, wherein: the joint of the transmission block and the inner wall of the oil supplementing cavity is provided with a first rubber gasket, and the joint of the transmission block and the sealing plate is provided with a second rubber gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920107527.2U CN209781480U (en) | 2019-01-22 | 2019-01-22 | Oil-supplementing hub bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920107527.2U CN209781480U (en) | 2019-01-22 | 2019-01-22 | Oil-supplementing hub bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209781480U true CN209781480U (en) | 2019-12-13 |
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ID=68793386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920107527.2U Active CN209781480U (en) | 2019-01-22 | 2019-01-22 | Oil-supplementing hub bearing |
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| Country | Link |
|---|---|
| CN (1) | CN209781480U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648284A (en) * | 2020-12-23 | 2021-04-13 | 人本股份有限公司 | Special high-sealing oil-compensating bearing for silicone oil clutch |
-
2019
- 2019-01-22 CN CN201920107527.2U patent/CN209781480U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648284A (en) * | 2020-12-23 | 2021-04-13 | 人本股份有限公司 | Special high-sealing oil-compensating bearing for silicone oil clutch |
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Address after: 325000 Binhai five road 515, Wenzhou economic and Technological Development Zone, Zhejiang Patentee after: C&U Co.,Ltd. Patentee after: SHANGHAI C&U GROUP Co.,Ltd. Patentee after: SHANGHAI C&U AUTOMOTIVE BEARING CO.,LTD. Address before: 325000 Binhai five road 515, Wenzhou economic and Technological Development Zone, Zhejiang Patentee before: C & U Group Ltd. Patentee before: SHANGHAI C&U GROUP Co.,Ltd. Patentee before: SHANGHAI C&U AUTOMOTIVE BEARING Co.,Ltd. |