CN212685104U - Hub unit with mud guide trough - Google Patents
Hub unit with mud guide trough Download PDFInfo
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- CN212685104U CN212685104U CN202021292797.4U CN202021292797U CN212685104U CN 212685104 U CN212685104 U CN 212685104U CN 202021292797 U CN202021292797 U CN 202021292797U CN 212685104 U CN212685104 U CN 212685104U
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- ball
- hub unit
- groove
- mandrel
- outer ring
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Abstract
The utility model provides a wheel hub unit with mud guiding groove, including dabber and bearing assembly, bearing assembly includes outer lane and inner circle, form annular rotatory chamber between outer lane and the inner circle, place the holder in the rotatory chamber, holder one side assembly a plurality of ball one, the opposite side assembly a plurality of ball two, a part cambered surface and the dabber of ball one form rolling connection, another part cambered surface forms rolling connection with the outer lane, a part cambered surface and the inner circle of ball two form rolling connection, another part cambered surface and outer lane form rolling connection, the head end of rotatory chamber is blocked up through sealing member one, the tail end is blocked up through sealing member two, still cover on the tail end of rotatory chamber and establish the magnetic ring, the magnetic ring is pressed and is established in the outside of sealing member two, the head end department of outer lane sets up the mud guiding groove that is located the annular flaring taper groove outward, flaring taper groove is small towards sealing member one outward, the large opening faces outwards, and an annular drainage gap is formed between the large opening of the outer expanding taper groove and the outer wall of the mandrel.
Description
Technical Field
The utility model belongs to the technical field of machinery, a auto-parts is related to, especially a wheel hub unit in mud basin is led in area.
Background
The automobile hub unit is used for bearing and providing accurate guide for rotation of a hub, bears axial load and radial load, and is one of very critical parts in an automobile. The service life of the bearing is direct data for measuring the product quality, and the service life of the bearing is improved at present.
In the practical use of hub units, the common failure modes are related to seal failure. In the driving process of the automobile, the sealing element is directly eroded by impurities such as muddy water, and the service life of the bearing is greatly reduced due to the failure of the sealing element.
SUMMERY OF THE UTILITY MODEL
The utility model aims at having the above-mentioned problem to current technique, provided a drainage structures is add outside the sealing member to and the wheel hub unit in mud groove is led in the area that sealed corrosion failure was avoided to the time exhaust muddy water.
The purpose of the utility model can be realized by the following technical proposal: a hub unit with a mud guiding water tank comprises a mandrel and a bearing assembly, wherein the bearing assembly is sleeved on the periphery of the mandrel to form a rotary connection, the bearing assembly comprises an outer ring and an inner ring, the inner ring is fixedly sleeved on the outer wall of the mandrel, the outer ring is sleeved on the periphery of the inner ring, an annular rotary cavity is formed between the outer ring and the inner ring, a retainer is placed in the rotary cavity, a plurality of balls I are assembled on one side of the retainer, a plurality of balls II are assembled on the other side of the retainer, one part of cambered surfaces of the balls I are in rolling connection with the mandrel, the other part of cambered surfaces of the balls II are in rolling connection with the outer ring, the head end of the rotary cavity is blocked through a first annular sealing element, and the tail end of the rotary cavity is blocked through, the tail end of the rotating cavity is further covered with a magnetic ring, the magnetic ring is arranged on the outer side of the second sealing element in a pressing mode, a mud guiding water tank is arranged at the head end of the outer ring and located on the front side of the first sealing element, the mud guiding water tank is an annular outward-expanding cone groove, a small opening of the outward-expanding cone groove faces towards the first sealing element, a large opening faces outwards, and an annular drainage gap is formed between the large opening of the outward-expanding cone groove and the outer wall of the mandrel.
In this wheel hub unit of mud basin is led in area, through a plurality of balls one and a plurality of ball two, make the inside structure that forms double row angular contact bearing of wheel hub unit to can bear axial load and can bear radial load again. The magnetic ring has regular magnetic level and provides signal for the sensor. The magnetic ring, the first sealing element and the second sealing element form a sealing space in the hub unit, and grease is prevented from leaking out and external impurities are prevented from entering the hub unit.
This wheel hub unit of mud basin is led in area flows into and leads the mud basin before muddy water flows in sealing member one to reduce the erosion of muddy water to sealing member one, utilize the drainage clearance in time to discharge muddy water simultaneously, still erode sealing member one after avoiding ponding.
In the hub unit with the mud guide water tank, the outer wall of the mandrel is concavely provided with an annular shaft wall ball groove, and a part of cambered surface of the first ball is embedded into the shaft wall ball groove.
In the hub unit with the mud guide water channel, the outer wall of the inner ring is concavely provided with an annular inner ring ball groove, and a part of cambered surface of the second ball is embedded into the inner ring ball groove.
In the hub unit with the mud guide water tank, an annular outer ring ball groove I is concavely arranged on the inner wall of the outer ring, and a part of cambered surface of the ball I is embedded into the outer ring ball groove I; and the inner wall of the outer ring is concavely provided with an annular outer ring ball groove II, and part of the cambered surface of the ball II is embedded into the outer ring ball groove II. The arc surfaces of the outer ring ball groove I and the outer ring ball groove II on the inner wall of the outer ring adopt a local surface quenching mode, so that the hardness is improved, and the wear resistance is enhanced.
The guide support is formed by the shaft wall ball groove, the inner ring ball groove, the outer ring ball groove I, the two pairs of balls I and the two pairs of balls II, so that the guide support is favorable for rolling in a specified track.
In the hub unit with the mud guide water tank, the head end of the mandrel is provided with the flange, the flange is provided with a plurality of fixing holes, bolts for fixing and mounting penetrate into the fixing holes, and the bolts and the fixing holes form interference fit. The integral hub unit is fixedly arranged on the automobile chassis through bolts.
In the hub unit with the mud guide water tank, the tail end of the mandrel is turned over towards the periphery to form a riveting edge, and the end part of the inner ring abuts against the riveting edge to form limiting connection. The mandrel is riveted after assembly to ensure that the clearance of the hub unit is in a reasonable range, and the work of the clearance during assembly of the bearing is reduced.
In the hub unit with the mud guide water tank, a central hole is formed in the core shaft, and an internal spline for transmitting torque is arranged on the hole wall of the central hole. When the core shaft is assembled, the internal spline is matched with the external spline to ensure the torsion of the hub unit.
Compared with the prior art, this wheel hub unit of mud basin is led in area has following advantage:
the drainage structure is additionally arranged outside the sealing element, muddy water is drained in time, erosion of the muddy water to the sealing element is reduced, and the service life of the hub unit is prolonged.
Drawings
Fig. 1 is a schematic sectional view of the hub unit with the mud guide groove.
In the figure, 1, a mandrel; 2. a flange; 3. a bolt; 4. riveting edges; 5. an inner ring; 6. a holder; 7. a first ball; 8. a second ball bearing; 9. a first sealing element; 10. a second sealing element; 11. a magnetic ring; 12. an outer ring; 13. lead mud basin.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in figure 1, the hub unit with the mud guiding water tank comprises a mandrel 1 and a bearing assembly, wherein the bearing assembly is sleeved on the periphery of the mandrel 1 to form rotary connection, the bearing assembly comprises an outer ring 12 and an inner ring 5, the inner ring 5 is fixedly sleeved on the outer wall of the mandrel 1, the outer ring 12 is sleeved on the periphery of the inner ring 5, an annular rotary cavity is formed between the outer ring 12 and the inner ring 5, a retainer 6 is placed in the rotary cavity, a plurality of balls I7 are assembled on one side of the retainer 6, a plurality of balls II 8 are assembled on the other side of the retainer 6, a part of cambered surface of each ball I7 is in rolling connection with the mandrel 1, the other part of cambered surface is in rolling connection with the outer ring 12, a part of cambered surface of each ball II 8 is in rolling connection with the inner ring 5, the other part of the cambered surface is in rolling connection with the outer ring 12, still cover on the tail end of rotatory chamber and establish magnetism circle 11, magnetism circle 11 is pressed and is established in the outside of sealing member two 10, and the head end department of outer lane 12 sets up leads mud basin 13, leads mud basin 13 and is located the front side of sealing member one 9, leads mud basin 13 and is annular outer flaring cone mouth groove, and the osculum of outer flaring cone mouth groove is towards sealing member one 9, and the macrostoma is outwards, forms annular drainage clearance between the macrostoma of outer flaring cone mouth groove and the dabber 1 outer wall.
In this wheel hub unit of mud basin is led in area, through a plurality of balls 7 and a plurality of balls two 8, make the inside structure that forms double row angular contact bearing of wheel hub unit to can bear axial load again can bear radial load. The magnetic ring 11 has a regular magnetic level and provides a signal for the sensor. The magnetic ring 11, the first sealing piece 9 and the second sealing piece 10 form a sealing space in the hub unit, and grease is prevented from leaking out and foreign matters are prevented from entering the hub unit.
This wheel hub unit of mud basin is led in area flows into and leads mud basin 13 before muddy water flows into sealing member 9 to reduce the erosion of muddy water to sealing member 9, utilize the drainage clearance in time to discharge muddy water simultaneously, still erode sealing member 9 after avoiding ponding.
The outer wall of the mandrel 1 is concavely provided with an annular shaft wall ball groove, and a part of cambered surface of the first ball 7 is embedded into the shaft wall ball groove.
An annular inner ring ball groove is concavely arranged on the outer wall of the inner ring 5, and a part of the cambered surface of the second ball 8 is embedded into the inner ring ball groove.
An annular outer ring ball groove I is concavely arranged on the inner wall of the outer ring 12, and a part of the cambered surface of the ball I7 is embedded into the outer ring ball groove I; an annular outer ring ball groove II is concavely arranged on the inner wall of the outer ring 12, and a part of the cambered surface of the ball II 8 is embedded into the outer ring ball groove II. The arc surfaces of the outer ring ball groove I and the outer ring ball groove II on the inner wall of the outer ring 12 adopt a local surface quenching mode, so that the hardness is improved, and the wear resistance is enhanced.
The guide support is formed by the shaft wall ball groove, the inner ring ball groove, the outer ring ball groove I, the two pairs of balls I7 and the two pairs of balls II 8, and the guide support is beneficial to rolling in a specified track.
The head end of the mandrel 1 is provided with a flange 2, the flange 2 is provided with a plurality of fixing holes, bolts 3 for fixing and mounting penetrate into the fixing holes, and the bolts 3 and the fixing holes form interference fit. The integral hub unit is fixedly arranged on the automobile chassis through a bolt 3.
The tail end of the mandrel 1 is turned over towards the periphery to form a riveting edge 4, and the end part of the inner ring 5 abuts against the riveting edge 4 to form limiting connection. The mandrel 1 is riveted after assembly to ensure that the clearance of the hub unit is in a reasonable range, and the work of the clearance during assembly of the bearing is reduced.
A central hole is formed in the core shaft 1, and an internal spline for transmitting torque is arranged on the hole wall of the central hole. When the mandrel 1 is assembled, the internal spline is matched with the external spline to ensure the torque force of the hub unit.
Compared with the prior art, this wheel hub unit of mud basin is led in area has following advantage:
the drainage structure is additionally arranged outside the sealing element, muddy water is drained in time, erosion of the muddy water to the sealing element is reduced, and the service life of the hub unit is prolonged.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the mandrel 1 is used more herein; a flange 2; a bolt 3; riveting edges 4; an inner ring 5; a holder 6; a first ball 7; a second ball 8; a first sealing element 9; a second sealing element 10; a magnetic ring 11; an outer race 12; silt gutter 13, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (7)
1. A hub unit with a mud guiding water tank comprises a mandrel and a bearing assembly, wherein the bearing assembly is sleeved on the periphery of the mandrel to form rotary connection, the hub unit is characterized in that the bearing assembly comprises an outer ring and an inner ring, the inner ring is fixedly sleeved on the outer wall of the mandrel, the outer ring is sleeved on the periphery of the inner ring, an annular rotary cavity is formed between the outer ring and the inner ring, a retainer is placed in the rotary cavity, a plurality of balls I are assembled on one side of the retainer, a plurality of balls II are assembled on the other side of the retainer, a part of cambered surfaces of the balls I are in rolling connection with the mandrel, the other part of cambered surfaces of the balls II are in rolling connection with the outer ring, a part of cambered surfaces of the balls II are in rolling connection with the inner ring, the other part of cambered surfaces of the balls II are in, the tail end of the rotating cavity is sealed through a second annular sealing element, a magnetic ring is further covered on the tail end of the rotating cavity and is arranged on the outer side of the second sealing element in a pressing mode, a mud guide water tank is arranged at the head end of the outer ring and is located on the front side of the first sealing element, the mud guide water tank is an annular outward-expanding cone groove, a small opening of the outward-expanding cone groove faces the first sealing element, a large opening of the outward-expanding cone groove faces outwards, and an annular drainage gap is formed between the large opening of the outward-expanding cone groove and the outer wall of the mandrel.
2. The hub unit with a mud guide groove as claimed in claim 1, wherein the outer wall of the mandrel is recessed with a shaft wall ball groove in a ring shape, and a part of the arc surface of the first ball is embedded in the shaft wall ball groove.
3. The hub unit with the mud guide groove as recited in claim 1, wherein an annular inner ring ball groove is recessed in an outer wall of the inner ring, and a part of an arc surface of the second ball is embedded in the inner ring ball groove.
4. The hub unit with a mud guide groove according to claim 1, wherein an annular outer ring ball groove I is recessed in an inner wall of the outer ring, and a part of an arc surface of the ball I is embedded in the outer ring ball groove I; and the inner wall of the outer ring is concavely provided with an annular outer ring ball groove II, and part of the cambered surface of the ball II is embedded into the outer ring ball groove II.
5. The hub unit with the mud guide groove as recited in claim 1, wherein a flange is arranged at the head end of the mandrel, a plurality of fixing holes are formed in the flange, bolts for fixing and mounting are inserted into the fixing holes, and the bolts and the fixing holes form an interference fit.
6. The hub unit with the mud guide groove as claimed in claim 1, wherein the tail end of the mandrel is turned over to the outer periphery to form a riveting edge, and the end of the inner ring abuts against the riveting edge to form a limiting connection.
7. The hub unit with the mud guide groove as recited in claim 1, wherein a central hole is opened in the core shaft, and an internal spline for transmitting torque is provided on a hole wall of the central hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021292797.4U CN212685104U (en) | 2020-07-03 | 2020-07-03 | Hub unit with mud guide trough |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021292797.4U CN212685104U (en) | 2020-07-03 | 2020-07-03 | Hub unit with mud guide trough |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212685104U true CN212685104U (en) | 2021-03-12 |
Family
ID=74895874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021292797.4U Active CN212685104U (en) | 2020-07-03 | 2020-07-03 | Hub unit with mud guide trough |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212685104U (en) |
-
2020
- 2020-07-03 CN CN202021292797.4U patent/CN212685104U/en active Active
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