CN207421137U - A kind of bearing arrangement of sludge agitation spiral - Google Patents
A kind of bearing arrangement of sludge agitation spiral Download PDFInfo
- Publication number
- CN207421137U CN207421137U CN201721434743.5U CN201721434743U CN207421137U CN 207421137 U CN207421137 U CN 207421137U CN 201721434743 U CN201721434743 U CN 201721434743U CN 207421137 U CN207421137 U CN 207421137U
- Authority
- CN
- China
- Prior art keywords
- bearing
- axis
- axle sleeve
- filler
- segment
- 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.)
- Active
Links
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model discloses a kind of bearing arrangements of sludge agitation spiral, it is related to a kind of transmission shaft, including bearing group, shaft assembly and filler assembly, shaft assembly includes axis and the axle sleeve being sleeved on axis, the one side shaft shoulder of shaft assembly is bonded with the inner ring of bearing group limits installation site by it, the opposite side of shaft assembly is by filler assembly circumferential seal, axis is included from end to the first segment of bearing group inner ring, and from bearing group inner ring to the second segment of filler assembly overlay area, first segment is identical with second segment outer diameter, and axle sleeve is around covering second segment region.The utility model can improve the wearability of axis, increase its service life, and it is to greatly shorten the time to replace accessory in repair, reduces equipment operation maintenance cost.
Description
Technical field
The utility model is related to a kind of bearing arrangement, the bearing arrangement of spiral is mixed in especially a kind of sludge.
Background technology
Agitating auger be widely used in the powders such as chemical industry, pesticide, dyestuff, food, feed, building materials, rare earth and powder (Gu-
Liquid) mixing.The machine will not generate overheat to heat sensitive material, granule materials will not be crushed to mixed material wide adaptability
With grind, comparison, which is resuspended the different material mixing different with granularity and will not generate, point considers a segregation phenomenon to be worth doing；
In the treatment process " semi-oriented plus burn " of sewage disposal plant excess sludge, to ensure desiccation effect, sludge into
It needs to be the uniformly mixed situation that mud-water separation cannot occur before entering desiccation machine.Sludge agitation spiral is to carry out homogeneous to sludge
Equipment.
To ensure that sludge agitation spiral is not in the situation that has sludge to leak in operation, on the transmission shaft of agitating auger
Being designed with packing seal prevents sludge from being leaked out from blender.Filler is packed into after packing cavity, and gland pair is adjusted with gland screw
The pressing force of filler makes filler generate certain deformation and is contacted with axis, generates certain radial load.At the same time, soaked in filler
The lubricant of stain is extruded, and oil film is formed between contact surface.Since contact condition is not especially uniform, contact site is just
There is " boundary lubrication " state, be known as " bearing effect "；And not in contact with recess portion form small oil groove, have thicker oil film, contact
Position irregular labyrinth together with the composition of non-contact portion position, plays a part of that liquid stream is prevented to leak, this claims " labyrinth effect ".If profit
It is sliding bad or press tension can all interrupt oil film, cause occur dry friction between filler and axis, finally result in excessively heated axle and appearance
It is seriously worn.
Therefore, it is necessary to be often adjusted to the compression degree of filler, so that the lubricant in filler is when running one section
Between be lost in and then squeeze out some lubricants, while compensate pressing force relaxation of the filler caused by volume change.Obviously, this
Sample often squeezes filler, most makes impregnating agent exhausted at last, so periodic replacement filler is necessary.In addition, in order to maintain liquid film
With take away frictional heat, it is also necessary that allowing intentionally at filler, which has a small amount of leakage,.
Since equipment is present with a small amount of leakage, leakage sludge is enriched in the abrasion that axis is accelerated between filler and axis.If
Received shipment row can cause the serious wear of axis afterwards for a period of time so that sludge largely leaks, and seriously affects work efficiency and is defended with environment
It is raw.And to solve the problems, such as leakage mud, integral replacing can only be carried out to axis, consume substantial amounts of manpower and materials at this stage.In one section of operation
It is present with leakage situation again after time.
Therefore, in the prior art since axis and filler contact directly, and because having a small amount of dirt in equipment running process
Mud leaks, and makes axis serious wear, leakage rate is caused to increase, influence equipment normal operation；To be carried out maintenance to equipment, just need
Integral replacing is carried out to axis, step is：
(1) the connection bolt of bearing block and rack is unloaded, unscrews bolt on stuffing-box, by bearing block together with bearing group,
Filler assembly is extracted from axis together；
(2) rack is dismantled, opening rack is exposed whole mixing auger of closing；
(3) positioning pin is removed, whole axis is disassembled from agitating auger；
(4) replace the axis of serious wear and restore equipment.
The axis short life of the prior art, and after axis abrasion, the repair replacement accessory time is long, equipment operation maintenance cost
It is high.
Utility model content
The purpose of this utility model is that：A kind of bearing arrangement of sludge agitation spiral is proposed, when accessory is replaced in repair
The time is greatly shortened, reduces equipment operation maintenance cost.
The purpose of this utility model is realized by following technical proposals：
A kind of bearing arrangement of sludge agitation spiral, including bearing group, shaft assembly and filler assembly, shaft assembly include axis and
The axle sleeve being sleeved on axis, the one side shaft shoulder of shaft assembly is bonded with the inner ring of bearing group limits installation site by it, shaft assembly it is another
By filler assembly circumferential seal, axis includes from end to the first segment of bearing group inner ring and from bearing group inner ring to filling out for one side
Expect the second segment of component coverage area, first segment is identical with second segment outer diameter, and axle sleeve is around covering second segment region.
In the utility model, the material of axial workpiece is usually all using quenched 45# steel, and this material has strong well
Degree, but wear-resisting property is poor, especially easily generates abrasion when the sludge big with silt content contacts, thus on axis with filler group
The region of part packing seal contact sets the axle sleeve for the detachable structure being conveniently replaceable.Compared to after axis is worn to whole axis into
Row is replaced, and the utility model need to only provide for simple replacement of axle sleeve, can greatly save maintenance time and expense.
Alternatively, axle sleeve forms the shaft shoulder that shaft assembly is bonded with bearing group inner ring.In the program, first segment and second segment
Outer diameter is identical, and axle sleeve forms the shaft shoulder that shaft assembly is bonded with the inner ring of bearing group, avoids the abrasion between axis and bearing group, simultaneously
When replacing axle sleeve, it is inserted in more smoothly quick during axle sleeve.
Alternatively, axle sleeve is circle straight tube shape.
Alternatively, fixed between axis and axle sleeve by gluing.In the program, axis is with shaft room by glue sticking, intensity
It is good, it is ensured that equipment axis in normal operation has reliable bonding strength with shaft room, will not relatively rotate；In addition,
When repairing axis, it is only necessary to be heated to making glue failure can remove axle sleeve on axle sleeve and replace, complete the repair of axis.
Alternatively, axle sleeve is made of the material more more resistant than axis.In the program, replaced by a kind of wear-resistant material on axis
The part contacted with packing seal prolongs the service life, and convenient for disassembly and assembly, greatlys save maintenance time.
Alternatively, axle sleeve is made of silicon carbide material.In the program, axle sleeve is silicon carbide material (SiC), has chemistry
The characteristics such as performance is stable, thermal conductivity factor is high, coefficient of thermal expansion is small, wear-resisting property is good.Silicon carbide material hardness is high, wear-resisting property is remote
Better than 45# steel, wearability is at 4 times or more.
Alternatively, filler assembly includes stuffing-box, filler, bolt and compression ring, and filler is mounted in stuffing-box and axis
Set fitting simultaneously compresses sealing by compression ring, and bolt is arranged on stuffing-box the gap for controlling filler and shaft room.In the program, filler
Be bonded in stuffing-box with axle sleeve, by adjust stuffing-box on bolt control filler and shaft room gap, adjust it is close
Seal effect.
Alternatively, bearing gland and bearing block are further included, bearing group is mounted in bearing block, is limited and is pacified by bearing gland
Holding position.
Alternatively, bearing block is bolted with rack by being connected, and positioning pin is additionally provided on axis.
The foregoing main scheme of the utility model and its each further selection scheme can be freely combined to form multiple schemes,
The scheme that can be used and be claimed for the utility model；And the utility model, (each non conflicting selection) selection between and
It can also be freely combined between other selections.Those skilled in the art are after the present invention program is understood according to the prior art and public affairs
Know that common sense can be understood there are many combination, be the claimed technical solution of the utility model, do not do exhaustion herein.
The beneficial effects of the utility model：The wearability of axis is improved, increases its service life, and accessory is replaced in repair
It is to greatly shorten the time, reduces equipment operation maintenance cost.
Description of the drawings
Fig. 1 is the sludge agitation spiral assembling structure schematic diagram of the utility model embodiment；
Fig. 2 is another sludge agitation spiral assembling structure schematic diagram；
In figure, bearing gland 1, bearing block 2, bearing group 3, axis 4, bolt 5, filler 6, stuffing-box 7, compression ring 8, connection spiral shell
Bolt 9, rack 10, positioning pin 11, axle sleeve 12, first segment 13, second segment 14, shoulder 15, washer 16.
Specific embodiment
The utility model is further described with reference to specific embodiments and the drawings.
Refering to what is shown in Fig. 1, a kind of bearing arrangement of sludge agitation spiral, including bearing group 3, shaft assembly and filler assembly,
Bearing gland 1 and bearing block 2 are further included, bearing group 3 is mounted in bearing block 2, and installation site is limited by bearing gland 1.Axis group
Part includes axis 4 and the axle sleeve 12 being sleeved on axis 4, and the one side shaft shoulder of shaft assembly is bonded with the inner ring of bearing group 3 limits installation by it
Position, by filler assembly circumferential seal, axis 4 is included from end to the first segment 13 of 3 inner ring of bearing group for the opposite side of shaft assembly, with
And from 3 inner ring of bearing group to the second segment 14 of filler assembly overlay area, first segment 13 is identical with 14 outer diameter of second segment, and axle sleeve
12 around 14 region of covering second segment.Filler assembly includes stuffing-box 7, filler 6, bolt 5 and compression ring 8, and filler 6 is mounted on and fills out
Be bonded in material letter 7 with axle sleeve 12 and sealing compressed by compression ring 8, bolt 5 on stuffing-box 7 control filler 6 and axle sleeve 12
Between gap.Bearing block 2 is connected with rack 10 by being connected bolt 9, and positioning pin 11 is additionally provided on axis 4.Axle sleeve 12 is circle straight tube
Shape, axle sleeve 12 form the shaft shoulder that shaft assembly is bonded with the inner ring of bearing group 3.
Refering to what is shown in Fig. 2, as a kind of deformation, the bearing arrangement of the shouldered shaft set of the sludge agitation spiral of the utility model
Such as lower structure can also be used：A kind of sludge agitation spiral shouldered shaft set bearing arrangement, including bearing group 3, shaft assembly and
Filler assembly further includes bearing gland 1 and bearing block 2, and bearing group 3 is mounted in bearing block 2, is limited and is installed by bearing gland 1
Position is additionally provided with washer 16 between bearing gland 1 and bearing block 2.Shaft assembly includes axis 4 and the axle sleeve 12 being sleeved on axis 4, axis group
The one side shaft shoulder of part is bonded with the inner ring of bearing group 3 limits installation site by it, and the opposite side of shaft assembly is circumferential by filler assembly
Sealing, axis 4 include the second segment 14 of 13 outer diameter bigger of first segment 13 and opposite first segment, and bearing group 3 is placed on first segment 13, axis
Set 12 is placed on second segment 14, and axle sleeve 12 is the circle straight tube shape with shoulder 15, and its shoulder 15 covers second segment 14 and first segment 13
The step structure of joint and against the inner ring of fitting bearing group 3, filler assembly is around being covered on axle sleeve 12.Filler assembly bag
Stuffing-box 7, filler 6, bolt 5 and compression ring 8 are included, filler 6 is mounted in stuffing-box 7 and is bonded with axle sleeve 12 and is pressed by compression ring 8
Tightening seal, bolt 5 be arranged on stuffing-box 7 on control filler 6 and axle sleeve 12 between gap.Bearing block 2 passes through with rack 10 to be connected
Bolt 9 connects, and positioning pin 11 is additionally provided on axis 4.
It is fixed between axis 4 and axle sleeve 12 by gluing, preferred high strength cylinder retaining rubber.By circle between axis 4 and axle sleeve 12
Week holds glue sticking, and intensity is good, it is ensured that equipment has reliable bonding strength in normal operation between axis 4 and axle sleeve 12, no
It can relatively rotate；To ensure the bonding strength between axis 4 and axle sleeve 12, certain gap is needed between axis 4 and axle sleeve 12 and is used
It smears circumference retaining rubber, is about 0.1~0.15mm；It is interior when 2 is small to can reach maximum after the completion of axle sleeve 12 is assembled with axis 4
The 70% of adhesive strength, 12 when small it is interior reach 90%, 24 it is small when after reach maximum adhesive strength；If want to be rapidly achieved maximum bonding
Intensity, can smear a kind of accelerating agent makes circumference retaining rubber be rapidly achieved estimated intensity.
Axle sleeve 12 is made of the material more more resistant than axis 4, and preferably silicon carbide material is made.Silicon carbide material (SiC), has
The characteristics such as stable chemical performance, thermal conductivity factor are high, coefficient of thermal expansion is small, wear-resisting property is good.Silicon carbide material hardness is high, wearability
45# steel can be much better than, wearability is at 4 times or more.
Since axle sleeve 12 and filler 6 contact directly, and because having a small amount of sludge leakage in equipment running process, work as axis
12 serious wears are covered, leakage rate is caused to increase, when influencing equipment normal operation, to be carried out maintenance to equipment, it is only necessary to axis
Set 12 is replaced, and need not be dismantled rack 10, positioning pin 11 and axis 4, step again at this time and is：
(1) bearing block 2 and the connection bolt 9 of rack 10 are unloaded, unscrew bolt 5 on stuffing-box 7, by bearing block 2 together with
Bearing group 3, filler assembly are extracted from shaft assembly together；
(2) only need by axle sleeve 12 be heated to 180 DEG C or more make retaining rubber failure axle sleeve 12 can be removed, used after removing
Solvent washes remaining glue on axis 4, installs new axle sleeve 12 and pacifies back bearing block 2 in rack 10.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (9)
1. a kind of bearing arrangement of sludge agitation spiral, it is characterised in that：Including bearing group, shaft assembly and filler assembly, axis group
Part includes axis and the axle sleeve being sleeved on axis, and the one side shaft shoulder of shaft assembly is bonded with the inner ring of bearing group limits installation site by it,
By filler assembly circumferential seal, axis includes from end to the first segment of bearing group inner ring and from bearing the opposite side of shaft assembly
Group inner ring is to the second segment of filler assembly overlay area, and first segment is identical with second segment outer diameter, and axle sleeve is around covering second segment
Region.
2. the bearing arrangement of sludge agitation spiral as described in claim 1, it is characterised in that：Axle sleeve forms shaft assembly and bearing
The shaft shoulder of group inner ring fitting.
3. the bearing arrangement of sludge agitation spiral as described in claim 1, it is characterised in that：Axle sleeve is circle straight tube shape.
4. the bearing arrangement of sludge agitation spiral as described in claim 1, it is characterised in that：Pass through gluing between axis and axle sleeve
It is fixed.
5. the bearing arrangement of sludge agitation spiral as described in claim 1, it is characterised in that：Axle sleeve is by the material more more resistant than axis
Material is made.
6. the bearing arrangement of sludge agitation spiral as described in claim 1, it is characterised in that：Axle sleeve is by silicon carbide material system
Into.
7. the bearing arrangement of sludge agitation spiral as described in claim 1, it is characterised in that：Filler assembly include stuffing-box,
Filler, bolt and compression ring, filler are mounted in stuffing-box to be bonded with axle sleeve and compressed by compression ring and seal, and bolt is arranged on filler
The gap of filler and shaft room is controlled on letter.
8. the bearing arrangement of sludge agitation spiral as described in claim 1, it is characterised in that：Further include bearing gland and bearing
Seat, bearing group are mounted in bearing block, and installation site is limited by bearing gland.
9. the bearing arrangement of sludge agitation spiral as described in claim 1, it is characterised in that：Bearing block passes through with rack to be connected
It is bolted, positioning pin is additionally provided on axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721434743.5U CN207421137U (en) | 2017-10-31 | 2017-10-31 | A kind of bearing arrangement of sludge agitation spiral |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721434743.5U CN207421137U (en) | 2017-10-31 | 2017-10-31 | A kind of bearing arrangement of sludge agitation spiral |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207421137U true CN207421137U (en) | 2018-05-29 |
Family
ID=62310396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721434743.5U Active CN207421137U (en) | 2017-10-31 | 2017-10-31 | A kind of bearing arrangement of sludge agitation spiral |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207421137U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081177A (en) * | 2019-05-06 | 2019-08-02 | 北京化工大学 | A kind of sealing device and bearing housing system |
| CN113007214A (en) * | 2021-03-09 | 2021-06-22 | 上海人本精密机械有限公司 | Combined high-speed precision bearing |
-
2017
- 2017-10-31 CN CN201721434743.5U patent/CN207421137U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081177A (en) * | 2019-05-06 | 2019-08-02 | 北京化工大学 | A kind of sealing device and bearing housing system |
| CN113007214A (en) * | 2021-03-09 | 2021-06-22 | 上海人本精密机械有限公司 | Combined high-speed precision bearing |
| CN113007214B (en) * | 2021-03-09 | 2022-04-01 | 上海人本精密机械有限公司 | Combined high-speed precision bearing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2180522C (en) | Self monitoring oil pump seal | |
| US7108058B2 (en) | Packing assembly for rotary drilling swivels and pumps having rotating shafts | |
| CN207421137U (en) | A kind of bearing arrangement of sludge agitation spiral | |
| CN104358705B (en) | A kind of corrosion-resistant integrated mechanical sealing device for pump | |
| CN207421136U (en) | A kind of bearing arrangement of the shouldered shaft set of sludge agitation spiral | |
| CN105464882A (en) | Main shaft seal device and axial flow turbine with same | |
| US20070290449A1 (en) | Mechanical shaft seal | |
| CN1232142A (en) | Slit ring seal | |
| CN107152463A (en) | Bearing divergence type slip casting bearing package is put | |
| CN108543578B (en) | Dustproof Raymond mill grinding roller device | |
| CN210178922U (en) | Packing sealing device | |
| CN207018367U (en) | Bearing divergence type slip casting bearing package is put | |
| CN204739221U (en) | Mixer shaft end sealing device | |
| CN206708370U (en) | A kind of belt mud dewatering equipment roller bearing sealing structure | |
| CN113483018B (en) | Joint bearing and shield tunneling machine using same | |
| JPH08159289A (en) | Shaft sealing device | |
| CN205330867U (en) | Shaft seal device and have device's axial flow turbine | |
| CN107091326A (en) | A kind of belt mud dewatering equipment roller bearing sealing structure | |
| CN107738888A (en) | The new type sealing device of the anti-dust-proof special operation condition lower belt conveyer drum axle of corruption | |
| CN210484424U (en) | KZL type bearing seat device capable of resisting radial and axial combined stress | |
| CN208565567U (en) | A kind of sealing structure for cloth axis | |
| CN207634865U (en) | A kind of four shaft rotation platform clamp for machining oil path distributors | |
| CN216756328U (en) | Novel discharging device sealing structure of roller mixer | |
| JP3307941B2 (en) | Grand seal assembly | |
| CN207497549U (en) | Strap Transporter in Coal Mine roller axle sealing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |