CN206830649U - A kind of backing roll - Google Patents
A kind of backing roll Download PDFInfo
- Publication number
- CN206830649U CN206830649U CN201720580481.7U CN201720580481U CN206830649U CN 206830649 U CN206830649 U CN 206830649U CN 201720580481 U CN201720580481 U CN 201720580481U CN 206830649 U CN206830649 U CN 206830649U
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- CN
- China
- Prior art keywords
- end cap
- backing roll
- overcoat
- axle
- spiral
- Prior art date
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Abstract
A kind of backing roll, for metallurgy industry strip straightener.Axle is connected through a screw thread with end cap, and two row needle bearings are assemblied between axle and overcoat, and end cap fixes needle bearing by spacer and limits its axial displacement；It is furnished with bearing channel on overcoat and end cap, steel ball assembles overcoat and end cap by bearing channel integral；Tongue and groove is carried on end cap, spiral labyrinth type combined seal structure is formed with the helical structure put outside；Seal groove is carried on end cap, sealing ring is assembled in seal groove；The hand of spiral of the outer helical structure for putting both ends is opposite.The utility model can effectively prevent backing roll under bad working environments, the intrusion of dust, impurity and sewage, meeting sealing requirements；Can thoroughly solve the problems, such as the resistance of start, meet the requirement that runs at high speed；Backing roll can be met while bear radial and axial loading demands；Whole supporting roller structure is simple, and mating surface is reduced, and assembling is simple, improves the synthesis precision of backing roll.
Description
Technical field
Metallurgy industry equipment technical field is the utility model is related to, specifically a kind of supporting for strip straightener rotates
Base part.
Background technology
At present, metallurgical colored plate band equipment for straightening just develops towards high speed, and equipment carries for backing roll, staring torque
Etc. requiring more and more higher.Under more severe work condition environment, it is small that backing roll does not require nothing more than staring torque, should also meet to carry highly dense
Sealing property waits require well.But under normal circumstances, backing roll is frequently with lip packing, and startup frictional force is big, the easily intrusion branch such as dust
Inside runner, cause lubrication failure, it is difficult to meet the technical requirements such as staring torque is small, sealing property is reliable.
The content of the invention
For overcome the deficiencies in the prior art, goal of the invention of the present utility model is to provide a kind of backing roll, to meet it
Dustproof and waterproof requirement under bad working environments environment, while meet that load is big under strip high-speed motion state, staring torque is small
Demand.
To realize above-mentioned purpose of utility model, axle of the present utility model is connected through a screw thread with end cap, two row needle bearings
It is assemblied between axle and overcoat, end cap fixes needle bearing by spacer and limits its axial displacement；It is furnished with axle on overcoat and end cap
Raceway groove is held, steel ball assembles overcoat and end cap by bearing channel integral；Tongue and groove is carried on end cap, with the spiral put outside
Structure composition spiral labyrinth type combined seal structure.
Seal groove is carried on the end cap, sealing ring is assembled in seal groove.
The spiral labyrinth type combined seal structure of the end cap and overcoat is built with lubricant grease.
The back-up ring for preventing end cap loosening is equipped with the axle.
The hand of spiral of the outer helical structure for putting both ends is opposite.
The end cap, back-up ring, sealing ring, steel ball, needle bearing are left and right symmetrical structure.
The utility model compared with prior art, is combined close using the end cap spiral labyrinth type formed with overcoat cooperation
Envelope, can effectively prevent backing roll under bad working environments, the intrusion of dust, impurity and sewage, meeting sealing requirements, solve existing
There is the shortcomings that lip packing is easily failed under bad working environments.Meanwhile spiral labyrinth type combination sealing category non-contacting seal, can
Thoroughly solve the problems, such as the resistance of start, meet the requirement that runs at high speed.And the utility model is using double needle roller arrangements and angular contact ball axle
Combination is held, backing roll can be met while bear radial and axial loading demands.And using overcoat as angular contact ball axle
The outer ring held, inner ring of the end cap as angular contact ball bearing, whole supporting roller structure is simple, and mating surface is reduced, and assembling is simple, carries
The high synthesis precision of backing roll.
Brief description of the drawings
Fig. 1 is structure diagram of the present utility model.
Fig. 2 is Fig. 1 labyrinth seal structure enlarged drawing.
Embodiment
As shown in Figure 1 and Figure 2, axle 1 of the present utility model is connected through a screw thread with end cap 3, and two row needle bearings 6 are assemblied in
Between axle 1 and overcoat 8, end cap 3 fixes needle bearing 6 by spacer 7 and limits its axial displacement, and sealing is carried on the end cap 3
Groove, seal groove is interior to assemble sealing ring 4, back-up ring 2 is equipped with the axle 1, for preventing the loosening of end cap 3；Overcoat 8 and end cap 3
Upper to be furnished with bearing channel, steel ball 5 is assembled overcoat 8 and end cap 3 integrally by bearing channel；Tongue and groove 10 is carried on end cap 3,
Spiral labyrinth type combined seal structure is formed with the helical structure 9 on overcoat 8, can effectively prevent backing roll under bad working environments,
The intrusion of dust, impurity and sewage, can thoroughly solve the problems, such as the backing roll resistance of start, meet the requirement that runs at high speed, the overcoat 8
The hand of spiral of the helical structure 9 at both ends on the contrary, the spiral labyrinth type combined seal structure of the end cap 3 and overcoat 8 built with
Lubricant grease, the hand of spiral is with lubricating grease flow direction on the contrary, during operating on overcoat 8, and the lubricating grease of leakage is in spiral thrust
It is pushed back under effect, so as to realize sealing.End cap 3 of the present utility model, back-up ring 2, sealing ring 4, steel ball 5, needle bearing 6 are
Left and right symmetrical structure.
Multiple supporting roll shaft both ends are fixed on strip straightener, and overcoat 8 rotates under the effect of strip frictional force around axle 1,
So as to realize the conveying of strip and transmission.Backing roll passes through the radial load of the receiving plate band transmission of needle bearing 6, overcoat 8, end cap
3 steel balls 5 form corner connection touch ball bearing, by adjusting contact angle size, can meet the axially different loading demands of backing roll, make
Backing roll bears radial and axial load simultaneously.
Claims (6)
- A kind of 1. backing roll, it is characterised in that：Axle (1) is connected through a screw thread with end cap (3), and two row needle bearings (6) are assemblied in Between axle (1) and overcoat (8), end cap (3) limits its axial displacement by the fixed needle bearing (6) of spacer (7)；Overcoat（8）And End cap（3）It is upper to be furnished with bearing channel, steel ball（5）By bearing channel by overcoat（8）And end cap (3) assembling is integral；End cap (3) It is upper to carry tongue and groove（10）, with overcoat（8）On helical structure（9）Form spiral labyrinth type combined seal structure.
- 2. backing roll according to claim 1, it is characterised in that：Seal groove is carried on the end cap (3), seal groove is built-in With sealing ring (4).
- 3. backing roll according to claim 1, it is characterised in that：The end cap (3) and overcoat（8）Spiral labyrinth type group Sealing structure is closed built with lubricant grease.
- 4. backing roll according to claim 1, it is characterised in that：It is equipped with the axle (1) for preventing end cap (3) pine Dynamic back-up ring (2).
- 5. backing roll according to claim 1, it is characterised in that：The overcoat（8）The helical structure at upper both ends（9）Spiral shell Rotation is in opposite direction.
- 6. backing roll according to claim 1, it is characterised in that：The end cap (3), back-up ring (2）, sealing ring (4), steel ball （5）, needle bearing (6) be left and right symmetrical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720580481.7U CN206830649U (en) | 2017-05-24 | 2017-05-24 | A kind of backing roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720580481.7U CN206830649U (en) | 2017-05-24 | 2017-05-24 | A kind of backing roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206830649U true CN206830649U (en) | 2018-01-02 |
Family
ID=60772286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720580481.7U Active CN206830649U (en) | 2017-05-24 | 2017-05-24 | A kind of backing roll |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206830649U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654496A (en) * | 2017-05-24 | 2018-02-02 | 襄阳振本传动设备有限公司 | A kind of backing roll |
| CN109595257A (en) * | 2019-01-15 | 2019-04-09 | 中国石油大学(华东) | Combined high-temperature high-pressure high-speed sealing bearing |
-
2017
- 2017-05-24 CN CN201720580481.7U patent/CN206830649U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654496A (en) * | 2017-05-24 | 2018-02-02 | 襄阳振本传动设备有限公司 | A kind of backing roll |
| CN109595257A (en) * | 2019-01-15 | 2019-04-09 | 中国石油大学(华东) | Combined high-temperature high-pressure high-speed sealing bearing |
| CN109595257B (en) * | 2019-01-15 | 2024-03-12 | 中国石油大学(华东) | Combined high-temperature high-pressure high-speed sealing bearing |
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