CN207064468U - A kind of combination bearing suitable for elevator dish traction machine - Google Patents
A kind of combination bearing suitable for elevator dish traction machine Download PDFInfo
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- CN207064468U CN207064468U CN201720946246.7U CN201720946246U CN207064468U CN 207064468 U CN207064468 U CN 207064468U CN 201720946246 U CN201720946246 U CN 201720946246U CN 207064468 U CN207064468 U CN 207064468U
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Abstract
It the utility model is related to field of bearings, a kind of combination bearing suitable for elevator dish traction machine, including bearing inner race, and the clutch shaft bearing outer ring and second bearing outer ring being positioned on the bearing inner race；Close up setting with axial direction of the second bearing outer ring along bearing inner race in the clutch shaft bearing outer ring；Radial direction cylindrical roller component is installed between clutch shaft bearing outer ring and bearing inner race, ball bearing assembly, the ball bearing assembly 4 points of contacts in the radial and axial directions are installed between second bearing outer ring and bearing inner race.It should be noted that 4 points of contacts refer to that ball bearing assembly positions along bearing inner race axial direction two-end-point, and being formed along bearing inner race radial direction two-end-point with component contact.The combination bearing is predominantly used for the machinery such as elevator traction machine and design, and higher and the occasion of larger axial load again be present due to that can bear radial load and axial load, especially rotating speed simultaneously, simply, bearing capacity is very strong for assembly and disassembly.
Description
Technical field
It the utility model is related to field of bearings, more particularly to a kind of combination bearing suitable for elevator dish traction machine.
Background technology
Bearing is that one kind is applied on rotating mechanism, for supporting, reduces friction and bears the part of load.Elevator drags
It is a kind of machinery needed using larger radial load and journal for axial load to draw machine, and the country mainly uses a set of deep-groove ball at present
Bearing and a set of NU types cylinder roller bearing meet duty requirements, but axial load is extremely difficult to require, radial load is also only
Requirement can be reached reluctantly, and due to two sets of bearing inner ring interior diameters and rolling（Ditch）There is scattered error and concentricity etc. in road size, make bearing
The noise that gets into smooth is larger, and bearing seal effect is also poor.
The content of the invention
In order to solve the above problems, the purpose of this utility model is to provide a kind of combination bearing, and the combination bearing is main
For for elevator traction machine etc. machinery design, due to can bear simultaneously radial load and axial load, especially rotating speed compared with
High and the occasion of larger axial load again be present, assembly and disassembly are simple, and bearing capacity is very strong.
In order to realize above-mentioned purpose, the utility model employs following technical scheme：
A kind of combination bearing suitable for elevator dish traction machine, it is characterised in that：Including bearing inner race, and it is positioned at
Clutch shaft bearing outer ring and second bearing outer ring on the bearing inner race；The clutch shaft bearing outer ring and second bearing outer ring are along axle
The axial direction for holding inner ring closes up setting；Radial direction cylindrical roller component is installed between clutch shaft bearing outer ring and bearing inner race, the
Ball bearing assembly is installed, the ball bearing assembly is in the radial and axial directions between two bearing outer rings and bearing inner race
4 points of contacts.It should be noted that 4 points of contacts refer to ball bearing assembly along bearing inner race axial direction two-end-point, with
And positioned being formed along bearing inner race radial direction two-end-point with component contact.
Preferably, the outer circumferential wall of the bearing inner race is provided with inner ring raceway face and inner ring ball face；Inner ring
The inner end in ball face protrudes from inner ring raceway face and forms inner ring retaining wall；Radial direction cylindrical roller component is arranged on inner ring raceway face
On, ball bearing assembly is arranged on inner ring ball face.
Preferably, the axial outer end portion in the inner ring raceway face is provided with the conical surface, inner ring raceway face inner end rolls with inner ring
Pearl face intersection is provided with inner ring oil groove；The radially inwardly projecting outer ring that is provided with both ends is kept off inside and outside the axial direction of the clutch shaft bearing outer ring
Wall, the groove bottom between the outer ring retaining wall of both sides form outer roller surface, end and the outer ring retaining wall junction composition of outer roller surface
Outer ring oil groove, the first outer ring seal groove is additionally provided with axially external outer ring retaining wall；The outside of the radial direction cylindrical roller component
It is positioned on outer roller surface, and is positioned axially through outer ring retaining wall and outer end retaining wall.
Preferably, the first sealing ring is provided between the clutch shaft bearing outer ring and the axial outer end portion of bearing inner race；The
One sealing ring includes the first steel skeleton, and is coated on the first seal on the outside of the first steel skeleton；First seal
Its radially outer end is caught in the first outer ring seal groove of clutch shaft bearing outer ring, the radial inner end and inner ring raceway of the first seal
The conical surface in face offsets；Include the first radial seal lip and the first axial sealing lip on the radial inner end of first seal
Portion, the first seal of the first radial seal lip radial outside are provided with the first elastic groove.
Preferably, the radial direction cylindrical roller component includes radial direction retainer, and on radial direction retainer
Radial roller group；The radial direction retainer includes ring body, and ring body side is provided with multiple pocket holes, two neighboring pocket along its circumferential rule
Tie-beam is provided between hole, trapezoidal groove is formed between tie-beam and ring body lateral wall, pocket hole is provided with tie-beam end position
Oil storage tank.
Preferably, the inner ring ball face is provided with inner ring ball arc groove；The footpath of the second bearing outer ring is inside
Side is provided with outer ring ball face, and outer ring ball face is provided with outer ring ball arc groove；The ball bearing assembly is arranged on outer
Enclose in ball arc groove.
Preferably, the ball bearing assembly includes axial-radial retainer, and the axial-radial retainer of installation
Interior ball set.
Preferably, the inner ring ball arc groove and outer ring ball arc groove include left side groove face and right side groove face,
Bottom of trench oil duct is formed between left side groove face and right side groove face；The angle α of the left side groove face and right side groove face and center line for 35 ~
40°。
Preferably, the second sealing ring is provided between the axial outer end portion in the outer ring ball face and inner ring ball face, the
Two sealing rings include the second steel skeleton, and are coated on the second seal on the outside of the second steel skeleton；Second seal
Include the second radial seal lip and two the second axial seal lips on radial inner end, the second radial seal lip is radially outer
Second seal of side is provided with the second elastic groove, and the 3rd elastic groove is formed between two the second axial seal lips.
Preferably, the axial outer end portion in the outer ring ball face is provided with the second outer ring seal groove, inner ring ball face
Axial outer end portion is provided with inner ring seal groove；Its radially outer end of second sealing ring is positioned in the second outer ring seal groove,
The radial inner end of second sealing ring is positioned in inner ring seal groove.
The utility model uses above-mentioned technical proposal, and the technical scheme is related to a kind of group suitable for elevator dish traction machine
Sympodium is held, and the radial direction cylindrical roller component and ball bearing assembly in the combination bearing share same bearing inner race, radially circle
Post roller assembly is used for the radial direction bearing capacity for ensureing combination bearing, and ball bearing assembly is used for the axial carrying for ensureing combination bearing
Power, and radial direction bearing capacity is lifted simultaneously.And a bearing inner race is shared, make its easy for installation, ensure that the scattered error of bearing bore diameter
And inner ring rolling（Ditch）The concentricity in road, reduce bear vibration noise and improve bearing service life.It may be summarized to be, the group
Sympodium bearing structure is compact, improves axiality, and operating is more stable, reduces noise.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of clutch shaft bearing outer ring.
Fig. 3 is the structural representation of bearing inner race.
Fig. 4 is the structural representation of radial direction retainer.
Fig. 5 is the structural representation of radial direction retainer.
Fig. 6 is the structural representation of the first sealing ring.
Fig. 7 is the structural representation of second bearing outer ring.
Fig. 8 is the structural representation of the second sealing ring.
Embodiment
Below in conjunction with the accompanying drawings, preferred embodiment of the present utility model is described in further detail.
A kind of combination bearing suitable for elevator dish traction machine as shown in Fig. 1 ~ 8, including bearing inner race 1, Yi Jiding
Clutch shaft bearing outer ring 2 and second bearing outer ring 3 of the position on the bearing inner race 1.The clutch shaft bearing outer ring 2 and second bearing
Axial direction of the outer ring 3 along bearing inner race 1 closes up setting.The outer circumferential wall of the bearing inner race 1 is provided with inner ring raceway
Face 11 and inner ring ball face 12, the inner end in inner ring ball face 12 protrude from inner ring raceway face 11 and form inner ring retaining wall 13.It is described
Radial direction cylindrical roller component is installed, radial direction cylindrical roller component is arranged on inner ring between clutch shaft bearing outer ring 2 and bearing inner race 1
On roller surface 11.Ball bearing assembly, ball bearing assembly peace are installed between the second bearing outer ring 3 and bearing inner race 1
On inner ring ball face 12, ball bearing assembly 4 points of contacts in the radial and axial directions.It should be noted that 4 points connect
Touch and refer to ball bearing assembly along the axial direction two-end-point of bearing inner race 1, and along the radial direction both ends of bearing inner race 1
Formed and positioned with component contact on point.
The technical scheme is related to a kind of combination bearing suitable for elevator dish traction machine, the radial direction circle in the combination bearing
Post roller assembly and ball bearing assembly share same bearing inner race 1, and radial direction cylindrical roller component is used to ensure combination bearing
Radial direction bearing capacity, ball bearing assembly is used to ensure the axial bearing capacity of combination bearing, and lifts radial direction bearing capacity simultaneously.And
A bearing inner race 1 is shared, makes its easy for installation, ensure that scattered error and the inner ring rolling of bearing bore diameter（Ditch）The concentricity in road, drop
Low bear vibration noise and improve bearing service life.It may be summarized to be, the combined bearing structure is compact, improves coaxial
Degree, operating is more stable, reduces noise.
The program is specific as follows：
In radial direction cylindrical roller component location structure；The axial outer end portion in the inner ring raceway face 11 is provided with the conical surface 14,
The cone angle of the conical surface 14 is 15-17 °, and the inner end of inner ring raceway face 11 is provided with inner ring oil groove 15 with the intersection of inner ring ball face 12.Institute
State that both ends inside and outside the axial direction of clutch shaft bearing outer ring 2 are radially inwardly projecting to be provided with outer ring retaining wall 21, the outer ring retaining walls 21 of both sides it
Between groove bottom form outer roller surface 22, end and the junction of outer ring retaining wall 21 composition outer ring oil groove 23, the axle of outer roller surface 22
The first outer ring seal groove 24 is additionally provided with outer ring retaining wall 21 laterally.It is positioned on the outside of the radial direction cylindrical roller component outer
On roller surface 22, and positioned axially through outer ring retaining wall 21 and outer end retaining wall.The clutch shaft bearing outer ring 2 and bearing inner race 1
The first sealing ring 4 is provided between axial outer end portion.First sealing ring 4 includes the first steel skeleton 41, and is coated on the first reinforcing bar
First seal 42 in the outside of frame 41.Its radially outer end of first seal 42 is caught in outside the first of clutch shaft bearing outer ring 2
Enclose in seal groove 24, the radial inner end of the first seal 42 offsets with the conical surface 14 in inner ring raceway face 11.First sealing
Include the first radial seal lip 43 and the first axial sealed lip 44, the first radial seal lip on the radial inner end of body 42
First seal 42 of 43 radial outsides is provided with the first elastic groove 45.
The radial direction cylindrical roller component includes radial direction retainer 51, and the radial direction rolling on radial direction retainer 51
Subgroup 52.The radial direction retainer 51 includes ring body 53, and the side of ring body 53 is provided with multiple pocket holes 54 along its circumferential rule, and adjacent two
Tie-beam 55 is provided between individual pocket hole 54, trapezoidal groove 56 is formed between tie-beam 55 and the lateral wall of ring body 53, pocket hole 54 is even
Connect the end position of beam 55 and be provided with oil storage tank 58.The radial direction retainer 51 of the radial direction cylinder roller bearing is overall using brass material
Turning adds milling processing and forming.
In ball bearing assembly location structure；The inner ring ball face 12 is provided with inner ring ball arc groove.Described
The radially inner side face of two bearing outer rings 3 is provided with outer ring ball face 31, and outer ring ball face 31 is provided with outer ring ball arc groove.Institute
Ball bearing assembly is stated in the ball arc groove of outer ring.The inner ring ball arc groove and outer ring ball arc groove include
Left side groove face 31a and right side groove face 31b, bottom of trench oil duct 32 is formed between left side groove face 31a and right side groove face 31b.The left side
The angle α of groove face 31a and right side groove face 31b and center line is 35 ~ 40 °.The ball bearing assembly is kept including axial-radial
Ball set 62 in frame 61, and the axial-radial retainer 61 of installation.
The second sealing ring 7 is provided between the axial outer end portion in the outer ring ball face 31 and inner ring ball face 12, second is close
Seal 7 includes the second steel skeleton 71, and is coated on second seal 72 in the outside of the second steel skeleton 71.Second seal
Include the second radial seal lip 73 and two the second axial seal lips 74, the second radial seal lip on 72 radial inner end
Second seal 72 of the radial outside of portion 73 is provided with the second elastic groove 75, and is formed between two the second axial seal lips 74
Three elastic grooves 76.The axial outer end portion in the outer ring ball face 31 is provided with the second outer ring seal groove 34, inner ring ball face 12
Axial outer end portion is provided with inner ring seal groove 17.Its radially outer end of second sealing ring 7 is positioned at the second outer ring seal groove
In 34, the radial inner end of the second sealing ring 7 is positioned in inner ring seal groove 17.
The combination bearing assembling process on elevator dish traction machine that the program is related to is as follows：The first step, installation are radially round
Post roller bearing；First clutch shaft bearing outer ring 2 is kept flat on the table, then radial direction retainer 51 it is flat be put into first axle
In bearing outer-ring 2, then in many pocket holes 54 for being fitted into radial direction retainer 51 of radial roller group 52.Second step, ball is installed
Bearing assembly；It is same that first second bearing outer ring 3 is kept flat on the table, bearing inner race 1 then there is into seal groove side down
Put down and be put into second bearing outer ring 3, and be in contact in the inwall of side bearing inner race 1 with the outer wall of second bearing outer ring 3,
Few one steel ball of wall finished product drawing requirement is subsequently placed into, then loads last steel ball with folder ball machine, is then loaded axially
Radial direction retainer 61, then the riveted axial-radial retainer 61 on punch press.3rd step, overall package；The footpath that will above install
Component, which has seal groove side to be inserted in inner ring upward, to outside cylinder roller bearing the guiding conical surface 14 side, then cleans the axle installed
Hold, then bearing both sides inject the lubricating grease of product requirement with grease filling machine, then in radial direction cylinder roller bearing side press-in the
One sealing ring 4；The second sealing ring 7 finally is pressed into ball bearing assembly side, so far a set of novel elevator dish traction unit
Sympodium takes up to match somebody with somebody and finished.
Claims (10)
- A kind of 1. combination bearing suitable for elevator dish traction machine, it is characterised in that：Including bearing inner race, and it is positioned at institute State the clutch shaft bearing outer ring and second bearing outer ring on bearing inner race；The clutch shaft bearing outer ring and second bearing outer ring are along bearing The axial direction of inner ring closes up setting；Radial direction cylindrical roller component is installed between clutch shaft bearing outer ring and bearing inner race, second Ball bearing assembly is installed, the ball bearing assembly in the radial and axial directions four between bearing outer ring and bearing inner race Point contact.
- A kind of 2. combination bearing suitable for elevator dish traction machine according to claim 1, it is characterised in that：The axle The outer circumferential wall for holding inner ring is provided with inner ring raceway face and inner ring ball face；The inner end in inner ring ball face protrudes from inner ring Roller surface forms inner ring retaining wall；Radial direction cylindrical roller component is arranged on inner ring raceway face, and ball bearing assembly is arranged on inner ring On ball face.
- A kind of 3. combination bearing suitable for elevator dish traction machine according to claim 2, it is characterised in that：In described The axial outer end portion of circle roller surface is provided with the conical surface, and inner ring raceway face inner end is provided with inner ring oil groove with inner ring ball face intersection； Both ends are radially inwardly projecting inside and outside the axial direction of the clutch shaft bearing outer ring is provided with outer ring retaining wall, between the outer ring retaining wall of both sides Groove bottom forms outer roller surface, and end and the outer ring retaining wall junction of outer roller surface form outer ring oil groove, axially external outer ring The first outer ring seal groove is additionally provided with retaining wall；It is positioned on the outside of the radial direction cylindrical roller component on outer roller surface, and axially Positioned by outer ring retaining wall and outer end retaining wall.
- A kind of 4. combination bearing suitable for elevator dish traction machine according to claim 3, it is characterised in that：Described The first sealing ring is provided between one bearing outer ring and the axial outer end portion of bearing inner race；First sealing ring includes the first steel skeleton, And it is coated on the first seal on the outside of the first steel skeleton；Its radially outer end of first seal is caught in outside clutch shaft bearing In first outer ring seal groove of circle, the radial inner end and the conical surface in inner ring raceway face of the first seal offset；Described first is close Sealing on the radial inner end of body includes the first radial seal lip and the first axial sealed lip, and the first radial seal lip is radially First seal in outside is provided with the first elastic groove.
- 5. a kind of combination bearing suitable for elevator dish traction machine according to any one in claim 1 ~ 3, it is special Sign is：The radial direction cylindrical roller component includes radial direction retainer, and the radial roller group on radial direction retainer； The radial direction retainer includes ring body, and ring body side is provided with multiple pocket holes along its circumferential rule, is provided between two neighboring pocket hole Tie-beam, forms trapezoidal groove between tie-beam and ring body lateral wall, pocket hole is provided with oil storage tank in tie-beam end position.
- A kind of 6. combination bearing suitable for elevator dish traction machine according to claim 2, it is characterised in that：In described Circle ball face is provided with inner ring ball arc groove；The radially inner side face of the second bearing outer ring is provided with outer ring ball face, outside Circle ball face is provided with outer ring ball arc groove；The ball bearing assembly is arranged in the ball arc groove of outer ring.
- A kind of 7. combination bearing suitable for elevator dish traction machine according to claim 6, it is characterised in that：The rolling Pearl bearing assembly includes the ball set in axial-radial retainer, and the axial-radial retainer of installation.
- A kind of 8. combination bearing suitable for elevator dish traction machine according to claim 6, it is characterised in that：In described Circle ball arc groove and outer ring ball arc groove include left side groove face and right side groove face, structure between left side groove face and right side groove face Into bottom of trench oil duct；The left side groove face is 35 ~ 40 ° with the angle α of right side groove face and center line.
- A kind of 9. combination bearing suitable for elevator dish traction machine according to claim 6, it is characterised in that：It is described outer The second sealing ring is provided between circle ball face and the axial outer end portion in inner ring ball face, the second sealing ring includes the second steel skeleton, And it is coated on the second seal on the outside of the second steel skeleton；Include second on the radial inner end of second seal radially Sealed lip and two the second axial seal lips, the second seal of the second radial seal lip radial outside are provided with second Elastic groove, the 3rd elastic groove is formed between two the second axial seal lips.
- A kind of 10. combination bearing suitable for elevator dish traction machine according to claim 9, it is characterised in that：It is described The axial outer end portion in outer ring ball face is provided with the second outer ring seal groove, and the axial outer end portion in inner ring ball face is close provided with inner ring Sealing groove；Its radially outer end of second sealing ring is positioned in the second outer ring seal groove, the radial inner end of the second sealing ring It is positioned in inner ring seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720946246.7U CN207064468U (en) | 2017-07-31 | 2017-07-31 | A kind of combination bearing suitable for elevator dish traction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720946246.7U CN207064468U (en) | 2017-07-31 | 2017-07-31 | A kind of combination bearing suitable for elevator dish traction machine |
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| Publication Number | Publication Date |
|---|---|
| CN207064468U true CN207064468U (en) | 2018-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720946246.7U Active CN207064468U (en) | 2017-07-31 | 2017-07-31 | A kind of combination bearing suitable for elevator dish traction machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269689A (en) * | 2017-07-31 | 2017-10-20 | 浙江天马轴承有限公司 | A kind of combination bearing suitable for the dish-shaped traction machine of elevator |
-
2017
- 2017-07-31 CN CN201720946246.7U patent/CN207064468U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269689A (en) * | 2017-07-31 | 2017-10-20 | 浙江天马轴承有限公司 | A kind of combination bearing suitable for the dish-shaped traction machine of elevator |
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