CN108190410A - HDPE carrying rollers deform Self-resetting compensation sealing device - Google Patents
HDPE carrying rollers deform Self-resetting compensation sealing device Download PDFInfo
- Publication number
- CN108190410A CN108190410A CN201810117241.2A CN201810117241A CN108190410A CN 108190410 A CN108190410 A CN 108190410A CN 201810117241 A CN201810117241 A CN 201810117241A CN 108190410 A CN108190410 A CN 108190410A
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- CN
- China
- Prior art keywords
- labyrinth seal
- hdpe
- bearing
- self
- roll shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors
- B65G39/02—Adaptations of individual rollers and supports therefor
- B65G39/09—Arrangements of bearing or sealing means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The invention discloses a kind of HDPE carrying rollers to deform Self-resetting compensation sealing device, including HDPE roll bodies, the center of the HDPE roll bodies is equipped with roll shaft, the both ends of the HDPE roll bodies are installed with bearing block respectively, bearing is installed in the bearing block, the inner ring of the bearing is axially slidable to be mounted on the roll shaft；Integrally formed intermediate labyrinth seal is installed in the bearing block, the shaft sealer with the intermediate labyrinth clearance cooperation is installed on the roll shaft, the shaft sealer includes integrally formed interior labyrinth seal and outer labyrinth seal, and the interior labyrinth seal and the outer labyrinth seal are separately mounted to the both sides of the intermediate labyrinth seal；Ring is laid with spaced elastic reset pawl on the outer labyrinth seal, and the roll shaft is equipped with the Self-resetting slot for being clamped the elastic reset pawl；The present invention can automatically reset compensation due to temperature difference and caused by deflection, ensure not influenced the service life of carrying roller by temperature change.
Description
Technical field
Compensation sealing device more particularly to a kind of deformation runback on HDPE carrying rollers the present invention relates to a kind of carrying roller
Position compensation sealing device.
Background technology
Carrying roller is the important component of belt conveyor, and application is very extensive.The quality of carrying roller mainly depends on the service life
Sealing element in carrying roller both ends, sealing element play a decisive role to the rotational resistance of carrying roller, waterproof and the important indicators such as dust-proof.
High density polyethylene (HDPE) carrying roller, abbreviation HDPE carrying rollers, compared with traditional made of metal carrying roller, HDPE carrying rollers use the longevity
Life length, wearability is good, small with friction coefficient, and low temperature resistant, low noise, chemical stability are high, acidproof, alkaline-resisting, resistant to salt corrosion, ratio
Heavy and light, it is excellent in cushion effect the advantages that.But HDPE carrying rollers are due to the particularity of its material, when temperature change is larger, HDPE materials
Material easily expands with heat and contract with cold, when expanding with heat and contract with cold, since the roller shaft for being arranged on HDPE carrying rollers center is metal roller shaft, with
The material of HDPE carrying rollers is different, and deflection is also variant；When temperature change is bigger, the axial length deflection of HDPE roll bodies is got over
Greatly, the cooperation between sealing element is directly affected, interference phenomenon can be caused, leads to carrying roller cisco unity malfunction, influences carrying roller
Service life.Therefore it is of great significance to the research of the sealing device with deformation-compensated function, it is expected that the device can be certainly
Dynamic reset compensation axial deflection caused by due to temperature difference, and with good sealing effect, it is ensured that not by temperature
Change and influence the service life of HDPE carrying rollers.
Invention content
The technical problems to be solved by the invention are to provide a kind of compensation that can automatically reset and cause axial direction due to temperature difference
The HDPE carrying rollers deformation Self-resetting compensation sealing device of deflection.
In order to solve the above technical problems, the technical scheme is that：HDPE carrying rollers deform Self-resetting compensation sealing device,
Including HDPE roll bodies, the center of the HDPE roll bodies is equipped with roll shaft, and the both ends of the HDPE roll bodies are installed with bearing respectively
, bearing is installed in the bearing block, the inner ring of the bearing is axially slidable to be mounted on the roll shaft, the axis
It holds and is installed with end ring on the roll shaft in outside, bearing mobile space is equipped between the bearing and the end ring；
Integrally formed intermediate labyrinth seal, the roll shaft are installed in the bearing block on the outside of the bearing
On be installed with shaft sealer with the intermediate labyrinth clearance cooperation, the shaft sealer is included in integrally formed
Labyrinth seal and outer labyrinth seal, the interior labyrinth seal and the outer labyrinth seal are separately mounted to the centre
The both sides of labyrinth seal, the interior labyrinth seal are fixedly mounted on the roll shaft；
The outer labyrinth seal is axially slidable to be mounted on the roll shaft, and ring is laid on the outer labyrinth seal
Spaced elastic reset pawl, the roll shaft are equipped with the Self-resetting slot for being clamped the elastic reset pawl；The elastic reset
Pawl periphery is equipped with annular groove, and rubber outer cover is equipped on the roll shaft；It is equipped on the inside of the rubber outer cover recessed with the annular
The corresponding annular protrusion of slot, the annular protrusion squeezed tight enter in the annular groove.
As preferred technical solution, it is all provided on the forward surface of the interior labyrinth seal and the intermediate labyrinth seal
There are several ring packing teeths extended towards and stagger distance coordinates, the outer labyrinth seal and the intermediate labyrinth seal
Forward surface on be equipped with it is several extend towards and stagger distance cooperation ring packing teeths.
As preferred technical solution, outer labyrinth seal clearance fit also between the bearing block.
As preferred technical solution, the outer labyrinth seal is extended towards with being equipped on the forward surface of the bearing block
And the ring packing teeth of stagger distance cooperation.
As preferred technical solution, the Self-resetting slot is V-shaped groove or arc groove.
As preferred technical solution, the elastic reset pawl is equipped with the arc contacted with the Self-resetting slot and contacts
Face.
By adopting the above-described technical solution, HDPE carrying rollers deform Self-resetting compensation sealing device, including HDPE roll bodies, institute
The center for stating HDPE roll bodies is equipped with roll shaft, and the both ends of the HDPE roll bodies are installed with bearing block respectively, in the bearing block
Bearing is installed with, the inner ring of the bearing is axially slidable to be mounted on the roll shaft, the roller on the outside of the bearing
End ring is installed on axis, bearing mobile space is equipped between the bearing and the end ring；
Integrally formed intermediate labyrinth seal, the roll shaft are installed in the bearing block on the outside of the bearing
On be installed with shaft sealer with the intermediate labyrinth clearance cooperation, the shaft sealer is included in integrally formed
Labyrinth seal and outer labyrinth seal, the interior labyrinth seal and the outer labyrinth seal are separately mounted to the centre
The both sides of labyrinth seal, the interior labyrinth seal are fixedly mounted on the roll shaft；
The outer labyrinth seal is axially slidable to be mounted on the roll shaft, and ring is laid on the outer labyrinth seal
Spaced elastic reset pawl, the roll shaft are equipped with the Self-resetting slot for being clamped the elastic reset pawl；The elastic reset
Pawl periphery is equipped with annular groove, and rubber outer cover is equipped on the roll shaft；It is equipped on the inside of the rubber outer cover recessed with the annular
The corresponding annular protrusion of slot, the annular protrusion squeezed tight enter in the annular groove；
The beneficial effects of the invention are as follows：Due between intermediate labyrinth seal and interior labyrinth seal and outer labyrinth seal
It is clearance fit, the both sides of intermediate labyrinth seal are respectively provided with certain mobile space so that intermediate labyrinth seal can be with
In axial direction it is respectively provided with certain deformation displacement amount outward inward；When generating the temperature difference, the axial length of HDPE roll bodies occurs
Variation, bearing block can be followed and be axially moveable together, so as to which intermediate labyrinth seal be driven to move, no matter the axial direction of HDPE roll bodies
Length is elongation or shortening, since the mobile space of the left and right sides exists, can compensate due to the temperature difference and caused by it is axial
Length deformation amount；When HDPE roll bodies be displaced outwardly variable quantity it is very big when, between Self-resetting slot and elastic reset pawl the limit compensation
Intermediate labyrinth seal is allow to continue to move outward with the process of automatically reseting, ensure that carrying roller is not influenced to use by temperature change
Service life.
Description of the drawings
The following drawings are only intended to schematically illustrate and explain the present invention, not delimit the scope of the invention.Wherein：
Fig. 1 is the structure diagram of the embodiment of the present invention；
Fig. 2 is the enlarged drawing at I in Fig. 1, and base of the embodiment of the present invention in the range of operating temperature ratings is shown in figure
This compensation working state schematic representation；
Fig. 3 is the structure diagram of elastic reset pawl of the embodiment of the present invention；
The limit compensation working state schematic representation that Fig. 4 is the embodiment of the present invention when being more than the specified operating temperature range of highest；
Fig. 5 is basic compensation working state schematic representation of the embodiment of the present invention in operating temperature ratings range lower limit；
In figure：1-HDPE roll bodies；11- positioning grooves；2- roll shafts；21- Self-resetting slots；The 22- conical surfaces；23-V shapes tip；3-
Bearing block；31- positioning protrusion；4- bearings；5- end rings；Labyrinth seal among 6-；Labyrinth seal in 7-；The outer labyrinths of 8-
Sealing element；81- elastic reset pawls；82- annular grooves；83- arc contact surfaces；9- rubber outer covers；91- annular protrusions；10- annulars
Seal tooth.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention is further explained.In the following detailed description, only pass through explanation
Mode describes certain exemplary embodiments of the present invention.Undoubtedly, those of ordinary skill in the art will recognize,
In the case of without departing from the spirit and scope of the present invention, described embodiment can be repaiied with a variety of different modes
Just.Therefore, attached drawing and description are regarded as illustrative in nature, and are not intended to limit the scope of the claims.
As depicted in figs. 1 and 2, HDPE carrying rollers deformation Self-resetting compensation sealing device, including HDPE roll bodies 1, the HDPE
The center of roll body 1 is equipped with roll shaft 2, and the both ends of the HDPE roll bodies 1 are installed with bearing block 3 respectively, the bearing block 3 it is outer
It is equipped with positioning protrusion 31 week, the inner wall of the HDPE roll bodies 1 is equipped with the positioning groove with the 31 corresponding installation of positioning protrusion
11, make the bearing block 3 that there is axially position when the axial length of the HDPE roll bodies 1 changes, the axis can be driven
Bearing 3 is axially moveable together.
Bearing 4 is installed in the bearing block 3, the inner ring of the bearing 4 is axially slidable to be mounted on the roll shaft 2
On, end ring 5 is installed on the roll shaft 2 in 4 outside of bearing, is equipped between the bearing 4 and the end ring 5
Bearing mobile space, the setting of the bearing mobile space makes the bearing 4 have the displacement being axially moveable, when the axis
When bearing 3 is displaced outwardly, the bearing 4 is driven to be moved axially outward, therefore, when the HDPE roll bodies 1 deform
The normal work of the bearing 4 is not influenced.
Integrally formed intermediate labyrinth seal 6 is installed in the bearing block 3 in 4 outside of bearing, it is described
The shaft sealer with intermediate 6 clearance fit of labyrinth seal is installed on roll shaft 2；The shaft sealer includes
Integrally formed interior labyrinth seal 7 and outer labyrinth seal 8, the interior labyrinth seal 7 and the outer labyrinth seal 8 divide
Not An Zhuan the intermediate labyrinth seal 6 both sides, by the intermediate labyrinth seal 6 with institute in labyrinth seal 7 and
It is clearance fit between the outer labyrinth seal 8 of institute, the both sides of the intermediate labyrinth seal 6 are respectively provided with certain mobile space,
Allow the intermediate labyrinth seal 6 that there is certain displacement amount in the axial direction；The interior labyrinth seal 7 is fixedly mounted
It is used to limit the position of the interior labyrinth seal 7 on the roll shaft 2.
The outer labyrinth seal 8 is axially slidable to be mounted on the roll shaft 2, ring cloth on the outer labyrinth seal 8
Equipped with spaced elastic reset pawl 81, Fig. 3 is specifically referred to；The roll shaft 2, which is equipped with, is clamped the elastic reset pawl 81
Self-resetting slot 21, in the present embodiment, the Self-resetting slot 21 is V-shaped groove, certain Self-resetting slot 21 or arc
Shape slot, the elastic reset pawl 81 are equipped with the arc contact surface 83 contacted with the Self-resetting slot 21；The elastic reset pawl
81 have elasticity, and when the outer labyrinth seal 8 moves axially outward, elastic change can occur for the elastic reset pawl 81
Shape；In the V-shaped groove there are the two opposite conical surfaces 22, there is V-arrangement tip 23 among two conical surfaces 22, due to the conical surface 22
Angle effect, the arc contact surface 83 can nature contact in the V-arrangement tip 23.
81 periphery of elastic reset pawl is equipped with annular groove 82, and rubber outer cover 9 is equipped on the roll shaft 2；The rubber
9 inside of glue outer cover is equipped with to be entered described with the 82 corresponding annular protrusion 91 of annular groove, 91 squeezed tight of annular protrusion
In annular groove 82, the setting of the rubber outer cover 9 is mainly used for sealing the outer labyrinth seal 8 and for by the bullet
Property position restoring claw 81 is pressed in the Self-resetting slot 21.
Be equipped on the forward surface of the interior labyrinth seal 7 and the intermediate labyrinth seal 6 it is several extend towards and
On the forward surface of the ring packing teeth 10 of stagger distance cooperation, the outer labyrinth seal 8 and the intermediate labyrinth seal 6
Equipped with several ring packing teeths 10 extended towards and stagger distance coordinates；The intermediate labyrinth seal 6, the interior labyrinth are close
Sealing 7 and the outer labyrinth seal 8 are staggered, and are formed multi-stage sealed, and sealing effect is good, between each sealing each other
Gap coordinates, and does not interfere with the rotation of carrying roller.
The outer labyrinth seal 7 clearance fit also between the bearing block 3, the outer labyrinth seal 7 and the bearing
Seat 3 forward surface on be equipped with extend towards and stagger distance cooperation ring packing 10, the increased ring packing teeth 10
The sealing effect between the outer labyrinth seal 8 and the bearing block 3 is made to become more preferable.
Operation principle is：As shown in figure 4, when temperature increases above the specified operating temperature range of highest, HDPE roll bodies 1
Since heat expansion causes axial length to be extended to both ends, while bearing block 3 is driven to move axially outward together, and with bearing block 3
Close-fitting bearing 4 is equally driven to be moved axially outward, since bearing 4 has bearing mobile space, work as generation
The normal work of bearing 4 is not interfered with during axial movement；Due to being fixed company between bearing block 3 and intermediate labyrinth seal 6
It connects, and the both sides of intermediate labyrinth seal 6 are respectively provided with certain mobile space, it, can band when bearing block 3 moves axially outward
Dynamic intermediate labyrinth seal 6 moves axially outward together, is until intermediate labyrinth seal 6 touches outer labyrinth seal 8
Only, this process is basic deformation compensation process.But when HDPE roll bodies 1 be axially moveable distance be more than intermediate labyrinth seal 6 with
During mobile space between outer labyrinth seal 8, as shown in figure 4, intermediate labyrinth seal 6 can be outwardly against outer labyrinth seal
8, the meeting of arc contact surface 83 of elastic reset pawl 81 at this time be moved on the conical surface 22 of V-shaped groove, drive outer 8 edge of labyrinth seal
It continues to move to axially outward, this process is limit compensation process；After temperature is restored, HDPE roll bodies 1 can drive intermediate labyrinth close
Sealing 6 moves inwards, and intermediate labyrinth seal 6 no longer squeezes outer labyrinth seal 8 at this time, due to 22 angle of the conical surface with outside rubber
Make arc contact surface 83 that can automatically glide along the conical surface 22 of V-shaped groove under the pressing force collective effect of annular protrusion 91 on lid 9,
Outer labyrinth seal 8 is driven back to move in an axial direction, until touching the V-arrangement tip 23 of V-shaped groove, is automatically performed and resetted
Journey.
Since the working condition of HDPE carrying rollers is mostly in working environment under high-temperature condition, HDPE roll bodies 1 are main
It is increased by temperature and generates larger modification amount, and happening that temperature reduces is relatively fewer, and the temperature difference that temperature reduces
Relatively small, therefore, in the present embodiment, the modification amount that whens HDPE 1 shrinkages of roll body causes axial length to shorten is also relatively small；
As shown in figure 5, when temperature is reduced to operating temperature ratings range lower limit, HDPE roll bodies 1 are because shrinkage causes axial length to contract
Short, due to having certain mobile space between intermediate labyrinth seal 6 and interior labyrinth seal 7, bearing block 3 can drive
Intermediate labyrinth seal 6 can move inwards in an axial direction, the modification amount that axial length shortens when meeting shrinkage, and intermediate at this time
Still there is certain mobile space between labyrinth seal 6 and interior labyrinth seal 7, for ensureing the normal work of sealing element,
This process is basic deformation compensation process；Since the setting of end ring 5 remains stationary interior labyrinth seal 7, and in
Between between labyrinth seal 6 and interior labyrinth seal 7 again must have certain mobile space, therefore during shrinkage do not have the limit
Compensation process, i.e., when the mobile space between centre labyrinth seal 6 and interior labyrinth seal 7 is more than HDPE 1 shrinkages of roll body
Maximum deformation quantity, and the size of this mobile space is designed according to the needs of practical shrinkage deflection.
Since the both sides of intermediate labyrinth seal 6 are respectively provided with certain mobile space, intermediate labyrinth seal 6 can be with
Be respectively provided with certain deformation displacement amount outward inward in the axial direction so that and though the axial length of HDPE roll bodies 1 be elongation or
Shorten, can compensate automatically due to the temperature difference and caused by axial length become deflection, be displaced outwardly changing when HDPE roll bodies 1
When amount is very big, the limit compensation between Self-resetting slot 21 and elastic reset pawl 81 makes intermediate labyrinth seal with the process of automatically reseting
6 can continue to move outward, ensure that carrying roller influences service life not by temperature change.
The present invention is the newest novel deformation-compensated sealing device developed of my company, and through many experiments, this is deformation-compensated
Sealing device can automatically reset compensation due to temperature difference and caused by deflection, ensure not by temperature change to influence carrying roller
Service life is the novel deformation-compensated sealing device for being worth promoting, developing.
Basic principle, main feature and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (6)
1.HDPE carrying rollers deform Self-resetting compensation sealing device, and including HDPE roll bodies, the center of the HDPE roll bodies is equipped with roll shaft,
The both ends of the HDPE roll bodies are installed with bearing block respectively, and bearing is installed in the bearing block, the bearing
Inner ring is axially slidable to be mounted on the roll shaft, it is characterised in that：Bearing is installed on the roll shaft on the outside of the bearing
Baffle ring is equipped with bearing mobile space between the bearing and the end ring；
Integrally formed intermediate labyrinth seal is installed in the bearing block on the outside of the bearing, is consolidated on the roll shaft
Dingan County is equipped with the shaft sealer with the intermediate labyrinth clearance cooperation, and the shaft sealer includes integrally formed interior labyrinth
Sealing element and outer labyrinth seal, the interior labyrinth seal and the outer labyrinth seal are separately mounted to the intermediate labyrinth
The both sides of sealing element, the interior labyrinth seal are fixedly mounted on the roll shaft；
The outer labyrinth seal is axially slidable to be mounted on the roll shaft, and ring is laid with interval on the outer labyrinth seal
The elastic reset pawl of arrangement, the roll shaft are equipped with the Self-resetting slot for being clamped the elastic reset pawl；Outside the elastic reset pawl
It is equipped with annular groove week, rubber outer cover is installed on the roll shaft；It is equipped with and the annular groove pair on the inside of the rubber outer cover
The annular protrusion answered, the annular protrusion squeezed tight enter in the annular groove.
2. HDPE carrying rollers as described in claim 1 deform Self-resetting compensation sealing device, it is characterised in that：The interior labyrinth is close
Several ring packings extended towards and stagger distance coordinates are equipped on the forward surface of sealing and the intermediate labyrinth seal
Several extend towards and stagger distance is equipped on the forward surface of tooth, the outer labyrinth seal and the intermediate labyrinth seal
The ring packing teeth of cooperation.
3. HDPE carrying rollers as described in claim 1 deform Self-resetting compensation sealing device, it is characterised in that：The outer labyrinth is close
Envelope clearance fit also between the bearing block.
4. HDPE carrying rollers as claimed in claim 3 deform Self-resetting compensation sealing device, it is characterised in that：The outer labyrinth is close
It is equipped with and extends towards and the ring packing teeth of stagger distance cooperation in envelope and the forward surface of the bearing block.
5. HDPE carrying rollers as described in claim 1 deform Self-resetting compensation sealing device, it is characterised in that：The Self-resetting slot
For V-shaped groove or arc groove.
6. HDPE carrying rollers deformation Self-resetting compensation sealing device as claimed in claim 5, it is characterised in that：The elastic reset
Pawl is equipped with the arc contact surface contacted with the Self-resetting slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810117241.2A CN108190410A (en) | 2018-02-06 | 2018-02-06 | HDPE carrying rollers deform Self-resetting compensation sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810117241.2A CN108190410A (en) | 2018-02-06 | 2018-02-06 | HDPE carrying rollers deform Self-resetting compensation sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108190410A true CN108190410A (en) | 2018-06-22 |
Family
ID=62592565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810117241.2A Withdrawn CN108190410A (en) | 2018-02-06 | 2018-02-06 | HDPE carrying rollers deform Self-resetting compensation sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108190410A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023231519A1 (en) * | 2022-06-01 | 2023-12-07 | 广东威灵电机制造有限公司 | Casing assembly, electric fan, and floor scrubber |
-
2018
- 2018-02-06 CN CN201810117241.2A patent/CN108190410A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023231519A1 (en) * | 2022-06-01 | 2023-12-07 | 广东威灵电机制造有限公司 | Casing assembly, electric fan, and floor scrubber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180622 |
|
| WW01 | Invention patent application withdrawn after publication |