CN201401435Y - Tension pulley bearing - Google Patents
Tension pulley bearing Download PDFInfo
- Publication number
- CN201401435Y CN201401435Y CN2009201170358U CN200920117035U CN201401435Y CN 201401435 Y CN201401435 Y CN 201401435Y CN 2009201170358 U CN2009201170358 U CN 2009201170358U CN 200920117035 U CN200920117035 U CN 200920117035U CN 201401435 Y CN201401435 Y CN 201401435Y
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- Prior art keywords
- ring
- outer ring
- wall
- seal
- wheel shaft
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- Expired - Fee Related
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Abstract
The utility model provides a tension pulley bearing, which belongs to the technical field of mechanical engineering, and solves the problem that a prior tension pulley bearing has low service life. The tension pulley bearing comprises an outer ring and an inner ring which is arranged in the outer ring, wherein the inner wall of the outer ring and the outer wall of the inner ring are provided witha channel, a steel ball is arranged in a cavity through a cage, the cavity forms between the outer ring and the outer ring through the channels, the two sides of the outer ring extends toward the outer axial direction to form a side ring, and the outer wall of the side ring is flush with the outer wall of the outer ring. The tension pulley bearing increases the axial width of the outer ring, can lead the contact area of the bearing and an engine belt, the outer ring and the inner ring are processed through blackening, therefore, the tension pulley bearing has the advantages of high work stability and long service life.
Description
Technical field
The utility model belongs to mechanical engineering technical field, relates to a kind of engineering element, particularly a kind of tension wheel shaft bearing.
Background technique
Mostly original minicar engine tension wheel shaft bearing is to wrap one deck engineering plastics on the plain bearing outer ring, plastic complex process, and in plastic process because bag circle inhomogeneous stressed, make bearing outer ring generation deformation, after plastic good bearing was assembled to and works on the body of motor, just greatly reduced its working life, in test room through 140---the result of strenuous test in 160 hours is: wearing and tearing and fatigue flake appear in raceway groove, radial internal clearance obviously strengthens, and bearing emits a shrill cry.Even the outer ring by after plastic, also needs covered plastics layer is ground, to increase the circularity and the surface finishment of covered plastics layer.In addition, use has the bearing of covered plastics layer as Idle wheel, the working life of its covered plastics layer is also shorter, this is because covered plastics layer contacts for a long time with the belt of motor, operating time one is long, because the friction effect between covered plastics layer and the belt, covered plastics layer can produce frictional heat, and as the rubber material be heat poor conductor, the high temperature that is produced can accumulate on the covered plastics layer, this will impel the softening of covered plastics layer, and after motor quit work, the covered plastics layer that has softened might bond on the belt, when ato unit once more, some covered plastics layer will permanently bond on the belt, causes the disappearance of covered plastics layer, and it is very poor that its circularity and surface finishment will become.The covered plastics layer that has softened also can increase the frictional force between covered plastics layer and the belt, thereby has increased the parasitic power loss of motor.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed a kind of the outer ring axial width to be strengthened, and can make the area of contact of itself and dynamo belt, the tension wheel shaft bearing that working stability increases.
Another one purpose of the present utility model is to the processing of turning black of outer ring and inner ring, makes longer tension wheel shaft bearing of its antirust time.
The purpose of this utility model can realize by following technical proposal: a kind of tension wheel shaft bearing, comprise an outer ring and an inner ring that is arranged in the outer ring, be equipped with a raceway groove on the inwall of outer ring and the outer wall of inner ring, steel ball is arranged in the chamber that forms by raceway groove between outer ring and the inner ring by retainer, it is characterized in that, the both sides of described outer ring all outwards extend axially the side circle of formation, and the outer wall of side circle flushes with the outer wall of outer ring.
This tension wheel shaft bearing is compared with plain bearing, all outwards extends axially the side circle of formation in the both sides of its outer ring, makes the width of outer ring wideer than plain bearing, and bigger with the dynamo belt area of contact, working stability is higher.
In the above-mentioned tension wheel shaft bearing, described outer ring and inner ring all adopt the GCr15 steel to make, and described outer ring and inner ring are all handled through blackout.The GCr15 steel of handling through blackout can form one deck tri-iron tetroxide protective layer on its surface, thereby increases the antirust time greatly, has improved its working life.
In the above-mentioned tension wheel shaft bearing, the two ends of described chamber are respectively equipped with the seal ring assembly that is used for the shutoff chamber port.After chamber two-port place is provided with seal ring assembly, make this chamber form an airtight chamber, thereby resultfully prevent that extraneous water from penetrating in the chamber, the water of having avoided infiltrating causes steel ball to get rusty to make it pivoting friction and increases.The grease that the sealing coil assembly has also effectively been stopped in the chamber simultaneously leaks, thereby it is longer than the lubricated steel ball time of the hub bearing that seal ring assembly is not set to make this wheel hub bearing store the grease of same amount in chamber, so improved the working life of this wheel hub bearing greatly.
In above-mentioned tension wheel shaft bearing, described seal ring assembly comprises seal ring and is arranged on the interior support frame of seal ring.Seal ring generally all adopts rubber material to make, and rubber material is all softer yielding, and support frame can effectively stop to lose because of the seal ring distortion phenomenon of sealing effect in seal ring.
In above-mentioned tension wheel shaft bearing, described seal ring is circular, has seal lip on its inner wall/outer wall; Has annular groove on the seal lip.Seal lip is followed have elasticity, it is matched in inner ring or outer ring, and to form sealing more tight.
In above-mentioned tension wheel shaft bearing, described seal ring is fixed on the outer ring, the inwall interference fit of the outer wall of seal ring and outer ring; Interior ring outer wall is provided with the annular groove that matches with seal lip, and seal lip is resisted against on the madial wall of annular groove.Adopt interference fit that seal ring is in and be compressive state, this moment, seal ring was tightr with contacting of inner ring or outer ring, can also automatically the gap that wearing and tearing are produced be compensated simultaneously.
In above-mentioned tension wheel shaft bearing, described seal ring is fixed on the inner ring, the outer wall interference fit of the inwall of seal ring and inner ring; The inwall of outer ring is provided with the annular groove that matches with seal lip, and seal lip is resisted against on the madial wall of annular groove.
In above-mentioned tension wheel shaft bearing, described seal ring adopts the nitrile rubber material to make.Nitrile rubber has fabulous oil resistance and heat resistance, the high strong advantage of wear resistance, bonding force, so sealing can be born the time that life-span of producing behind the seal ring prolongs that is provided with entirely fully.
Compared with prior art, the utlity model has following advantage:
1, this tension wheel shaft bearing strengthens the outer ring axial width, can make the area of contact of itself and dynamo belt, so have the high advantage of working stability.
2, this tension wheel shaft bearing outer-ring and the inner ring processing of turning black makes its antirust time longer, thereby has improved working life.
3, this tension wheel shaft bearing is equipped with seal ring assembly at chamber two-port place, prevents the infiltration of extraneous water and leaking of the interior grease of chamber, thereby has also improved working life.
Description of drawings
Fig. 1 is the sectional structure schematic representation of this tension wheel shaft bearing.
Fig. 2 is the partial enlarged drawing at A place among this tension wheel shaft bearing Fig. 1.
Among the figure, 1, the outer ring; 11, side circle; 2, steel ball; 3, retainer; 4, inner ring; 41, annular groove; 5, seal ring assembly; 6, seal ring; 61, seal lip; 62, annular groove; 7, support frame; 8, chamber.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, this tension wheel shaft bearing comprises inner ring 4, outer ring 1, steel ball 2, retainer 3, seal ring assembly 5.
Specifically, outer ring 1 and inner ring 4 ringwise, the inwall of outer ring 1 is provided with a raceway groove, inner ring 4 is arranged in the outer ring 1, on the outer wall of inner ring 4, be provided with one corresponding with outer ring 1 raceway groove and the coupling raceway groove.Between outer ring 1 and inner ring 4, form the chamber 8 that to place steel ball 2 by raceway groove, on the raceway row steel ball 2 is set in the chamber 8, this row steel ball 2 is made up of 15 steel balls 2, on this row steel ball 2, establish a retainer 3 that steel ball 2 is evenly separated, thereby guarantee steel ball 2 orderly rolling on ring raceway.
Embodiment one
As depicted in figs. 1 and 2, the both sides of outer ring 1 all outwards extend axially and make it to form side circle 1, and the outer wall of side circle 11 flushes with the outer wall of outer ring 1; The width of side circle 11 is about 1/3 of outer ring 1.This tension wheel shaft bearing is compared with plain bearing, all outwards extends axially the side circle 11 of formation in the both sides of its outer ring 1, makes the width of outer ring 1 wideer than plain bearing, and bigger with the dynamo belt area of contact, working stability is higher.Outer ring 1 and inner ring 4 all adopt the GCr15 steel to make, and all handle through blackout, and the GCr15 steel of handling through blackout can form one deck tri-iron tetroxide protective layer on its surface, thereby increases the antirust time greatly, has improved its working life.
Be respectively equipped with the seal ring assembly 5 that is used for shutoff chamber 8 ports at the two ends of chamber 8.After chamber 8 two-port places are provided with seal ring assembly 5, make this chamber 8 form an airtight chamber, thereby resultfully prevent that extraneous water from penetrating in the chamber 8, the water of having avoided infiltrating causes steel ball 2 to get rusty to make it pivoting friction and increases.The grease that sealing coil assembly 5 has also effectively been stopped in the chamber 8 simultaneously leaks, thereby it is longer than lubricated 2 times of steel ball of the hub bearing that seal ring assembly 5 is not set to make this wheel hub bearing store the grease of same amount in chamber 8, so improved the working life of this wheel hub bearing greatly.Seal ring assembly 5 comprises seal ring 6 and the support frame 7 that is arranged in the seal ring 6.Seal ring 6 generally all adopts rubber material to make, and rubber material is all softer yielding, and support frame 7 can effectively stop to lose because of seal ring 6 distortion the phenomenon of sealing effect in seal ring 6.Seal ring 6 adopts the nitrile rubber material to make.Nitrile rubber has fabulous oil resistance and heat resistance, the high strong advantage of wear resistance, bonding force, so sealing can be born the time that life-spans that seal ring 6 backs produce prolong that is provided with entirely fully.
Seal ring 6 is circular, has seal lip 61 on its inwall; Has annular groove 62 on the seal lip 61.Can make seal lip 61 with having elasticity after on the seal lip 61 annular groove 62 being set, it is matched in inner ring 4 or outer ring 1, and to form sealing more tight.Seal ring 6 is fixed on the outer ring 1, the inwall interference fit of the outer wall of seal ring 6 and outer ring 1; Inner ring 4 outer walls are provided with the annular groove 41 that matches with seal lip 61, and the sidewall of seal lip 61 is resisted against on the madial wall of annular groove 41.Adopt interference fit that seal ring 6 is in and be compressive state, this moment, seal ring 6 was tightr with contacting of inner ring 4 or outer ring 1, can also automatically the gap that wearing and tearing are produced be compensated simultaneously.
Embodiment two
Present embodiment is basic identical with embodiment one structure and principle, and different place is: have seal lip 61 on the outer wall of seal ring 6, seal ring 6 is fixed on the inner ring 4, the outer wall interference fit of the inwall of seal ring 6 and inner ring 4; The inwall of outer ring 1 is provided with the annular groove 41 that matches with seal lip 61, and the sidewall of seal lip 61 is resisted against on the madial wall of annular groove 41.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used outer ring 1 morely; Side circle 11; Steel ball 2; Retainer 3; Inner ring 4; Annular groove 41; Seal ring assembly 5; Seal ring 6; Seal lip 61; Annular groove 62; Support frame 7; Chamber 8 terms such as grade, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (8)
1, a kind of tension wheel shaft bearing, comprise an outer ring (1) and be arranged on the interior inner ring (4) in outer ring (1), be equipped with a raceway groove on the outer wall of the inwall of outer ring (1) and inner ring (4), steel ball (2) is arranged in the chamber (8) that forms by raceway groove between outer ring (1) and the inner ring (4) by retainer (3), it is characterized in that, the both sides of described outer ring (1) all outwards extend axially the side circle (11) of formation, and the outer wall of side circle (11) flushes with the outer wall of outer ring (1).
2, tension wheel shaft bearing according to claim 1 is characterized in that, described outer ring (1) and inner ring (4) all adopt the GCr15 steel to make, and described outer ring (1) and inner ring (4) are all handled through blackout.
3, tension wheel shaft bearing according to claim 1 is characterized in that, the two ends of described chamber (8) are respectively equipped with the seal ring assembly (5) that is used for shutoff chamber (8) port.
4, tension wheel shaft bearing according to claim 3 is characterized in that, described seal ring assembly (5) comprises seal ring (6) and is arranged on the interior support frame (7) of seal ring (6).
5, tension wheel shaft bearing according to claim 4 is characterized in that, described seal ring (6) is circular, has seal lip (61) on its inner wall/outer wall; Has annular groove (62) on the seal lip (61).
According to claim 3 or 4 described tension wheel shaft bearings, it is characterized in that 6, described seal ring (6) is fixed on the outer ring (1), the inwall interference fit of the outer wall of seal ring (6) and outer ring (1); Inner ring (4) outer wall is provided with the annular groove (41) that matches with seal lip (61), and seal lip (61) is resisted against on the madial wall of annular groove (41).
According to claim 3 or 4 described tension wheel shaft bearings, it is characterized in that 7, described seal ring (6) is fixed on the inner ring (4), the outer wall interference fit of the inwall of seal ring (6) and inner ring (4); The inwall of outer ring (1) is provided with the annular groove (41) that matches with seal lip (61), and seal lip (61) is resisted against on the madial wall of annular groove (41).
According to claim 3 or 4 described tension wheel shaft bearings, it is characterized in that 8, described seal ring (6) adopts nitrile rubber to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201170358U CN201401435Y (en) | 2009-04-07 | 2009-04-07 | Tension pulley bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201170358U CN201401435Y (en) | 2009-04-07 | 2009-04-07 | Tension pulley bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201401435Y true CN201401435Y (en) | 2010-02-10 |
Family
ID=41661233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201170358U Expired - Fee Related CN201401435Y (en) | 2009-04-07 | 2009-04-07 | Tension pulley bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201401435Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196877A (en) * | 2014-07-28 | 2014-12-10 | 洛阳维斯格轴承有限公司 | Constant-section ultrathin-wall bearing seal structure |
| CN104963951A (en) * | 2015-06-05 | 2015-10-07 | 海宁众腾汽车密封件有限公司 | Sealing ring for automobile tensioning wheel bearing and preparing technology of sealing ring |
| CN107199438A (en) * | 2016-03-18 | 2017-09-26 | 徐州万达回转支承有限公司 | The processing technology of WEA12 revolution driving pivoting supports |
-
2009
- 2009-04-07 CN CN2009201170358U patent/CN201401435Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196877A (en) * | 2014-07-28 | 2014-12-10 | 洛阳维斯格轴承有限公司 | Constant-section ultrathin-wall bearing seal structure |
| CN104963951A (en) * | 2015-06-05 | 2015-10-07 | 海宁众腾汽车密封件有限公司 | Sealing ring for automobile tensioning wheel bearing and preparing technology of sealing ring |
| CN107199438A (en) * | 2016-03-18 | 2017-09-26 | 徐州万达回转支承有限公司 | The processing technology of WEA12 revolution driving pivoting supports |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100210 Termination date: 20180407 |