CN104088809A - High-pressure blower - Google Patents
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- CN104088809A CN104088809A CN201410256589.1A CN201410256589A CN104088809A CN 104088809 A CN104088809 A CN 104088809A CN 201410256589 A CN201410256589 A CN 201410256589A CN 104088809 A CN104088809 A CN 104088809A
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Abstract
The invention relates to a high-pressure blower, and belongs to the technical field of blower equipment. The high-pressure blower comprises a wind barrel and a motor, wherein the output shaft of the motor extends into the wind barrel, a wind blade is fixedly connected to the extending-in end of the output shaft, a circular bearing cover plate is fixedly connected to the outer side surface of the wind barrel on one side facing to the motor, a through hole is formed in the position of the center of a circle of the bearing cover plate, a bearing seat is arranged on the side surface of the bearing cover plate on one side facing to the motor and is arranged around the through hole, and a bearing is fixedly connected to the inner part of the bearing seat. The bearing cover plate and the bearing respectively consist of the following components by weight percent: 0.12 to 0.15% of C, 0.25 to 0.30% of Si, 0.50 to 0.80% of Mn, 0.50 to 0.80% Cr, 0.05 to 0.10% of Mo, less than or equal to 0.20% of Cu, less than or equal to 0.10% of Ni, less than or equal to 0.025% of S, less than or equal to 0.025% of P, and the balance of Fe. The high-pressure blower has the advantages of rational design and long service life.
Description
Technical field
The invention belongs to Fan Equipment technical field, relate to a kind of high pressure blower.
Background technique
Blower is to be mainly made up of parts such as motor, air filter, impeller, air chamber, bases, by the volume-variation between blade by air intake, compress, spue, because impeller turns round without friction in body, do not need to lubricate, making the not oil-containing of gas of discharging, is the desirable pneumatic transporting of the industry such as chemical industry, the food source of supplying gas.When use, along with the variation of pressure, flow variation is very little, but flow changes along with rotating speed, and therefore the range of choice of pressure is very wide, and the selection of flow can be by selecting rotating speed reach needs.Blower kind is various, can be divided into Shandong formula blower, high pressure blower etc., wherein high pressure blower, also be high pressure positive blower, its inside is provided with fan blade, in the time that fan blade rotates, due to the effect of centrifugal force, wind vane impels gas outwards motion forward, thereby form a series of spiral helicine motions, air between fan blade blade accelerates in the shape of a spiral rotation and the gas outside the pump housing is clamp-oned to side channel, after its approaching side passage, gas is compressed, then be returned to again between impeller blade and again accelerate to rotate, the degree that each impeller blade has increased compression and accelerated, along with the carrying out of rotation, the kinetic energy of gas increases, the gas pressure passing through along side canal is further increased, final gas is extruded blade and discharges the pump housing by outlet.
As Chinese invention patent application (application number: 02822446.9) disclose a kind of high pressure blower, it comprises having a motor through axle wherein; The main impeller of being made by a kind of carbon fiber-based composite material, this impeller is arranged on the both sides of this motor and is directly installed on this axle of this motor; Surround the blower casing of this impeller; Center-aisle with a pressure opening of connection one blower casing and a negative pressure opening of another blower casing; The pedestal structure of this center-aisle and this high pressure blower is integral.Although this high pressure blower structure is comparatively compact, because the bearing of this blower is arranged on the front end of wind bucket, the liquid such as rainwater that therefore enters wind bucket easily enters motor and motor is caused damage along motor output shaft.
Summary of the invention
The present invention is directed to existing technology and have the problems referred to above, proposed a kind of high pressure blower, this high pressure blower can avoid liquid to enter motor, and motor is played a protective role.
Object of the present invention can realize by following technical proposal: a kind of high pressure blower, comprise wind bucket and motor, the output shaft of described motor stretches into wind bucket, and the inserting end at output shaft is fixed with fan blade, it is characterized in that, described wind bucket is fixed with the bearing cover of a circle on a side outer side surface of motor, the home position of described bearing cover offers through hole, bearing cover has a bearing support around through hole on a side side of motor, in described bearing support, be fixed with bearing, above-mentioned output shaft is through bearing, and output shaft is connected mutually with bearing inner race, wherein, described bearing cover, bearing is grouped into by the one-tenth of following weight percentage: C:0.12-0.15%, Si:0.25-0.30%, Mn:0.50-0.80%, Cr:0.50-0.80%, Mo:0.05-0.10%, Cu≤0.20%, Ni≤0.10%, S≤0.025%, P≤0.025%, surplus is Fe and other inevitable impurity.
The sidewall home position of wind bucket offers center hole, motor, bearing cover and wind bucket are fixed together, the output shaft free end of motor stretches in wind bucket through the center hole of through hole and wind bucket successively, fan blade is connected in the free end of output shaft, bearing cover is between wind bucket and motor, bearing is connected in bearing support, and the outer side wall of output shaft and the laminating of the madial wall of bearing inner race are connected, therefore in the time that the fan blade in wind bucket is worked, the liquid such as rainwater that is inhaled into wind bucket can flow along output shaft, in the time flowing to bearing place, can be stopped by bearing, avoid liquid to continue to flow into motor along output shaft, motor is played a protective role.Secondly, bearing cover in high pressure blower of the present invention, Selection of Bearings wear resistance high carburizing bearing steel make, in order to obtain the good bearing cover of performance, bearing, on the basis of the chemical composition of existing carburizing bearing steel G20CrMo, the strict composition proportion of controlling each alloying element, newly increase Ni content, further control Si, Mn, the essential elements such as Cu, and reduce C, the content of Mo, improve the content of Cr, and in alloy technology field, the minor alteration of a composition can cause the acute variation of alloy property, simultaneously, bearing cover, bearing alloy used is by the synergy producing between each alloying element, make the bearing cover making, bearing has higher hardness, wear resistance, contact fatigue strength, and good toughness, dimensional stability, anti-corrosion and cold and hot working performance, thereby improve the mechanical property of high pressure blower, and extend working life of high pressure blower.
C element is a kind of basic element, and the content in Bearing Steel is higher, and the hardness of Bearing Steel is just higher, but along with the increase of Bearing Steel, its plasticity, toughness, weldability variation thereupon.And carbon element content is excessive, can cause the atmospheric corrosion resistance ability of Bearing Steel greatly to reduce.In high pressure blower middle (center) bearing cover plate of the present invention, bearing Bearing Steel used, add appropriate carbon, can increase the hardness of bearing cover, bearing, show through great many of experiments, the content of C element in bearing cover, bearing is controlled between 0.12%-0.15%, in increasing bearing cover, bearing hardness, can ensure its weldability and the corrosion resistance in atmosphere.
Si element adds in bearing cover, bearing as a kind of useful element, can not only increase intensity and the hardness of bearing cover, bearing, also can be used as deoxidizing agent and reducing agent in bearing cover, bearing, but can reduce plasticity, the toughness of bearing cover, bearing.According to the effect of the selection of other elements and element silicon, it is 0.25%-0.30% that the present invention adds appropriate Si element at bearing cover, bearing.
Mn element can not only improve the intensity of bearing cover and bearing, also can slacken and eliminate the harmful effect of sulphur in bearing cover, bearing, and can improve the hardenability of bearing cover, bearing.In bearing cover, bearing, in the time that Mn element acquires a certain degree, can make bearing cover, bearing there is higher wear resistance, and strengthen the cold shortness under its low temperature, but excessive manganese can reduce Weldability and the anti-corrosion capacity of bearing cover, bearing.Therefore, in bearing cover, bearing, the content of Mn is controlled to 0.50%-0.80% the best.
Cr element can not only make bearing cover, bearing at high temperature still can have high strength in bearing cover, bearing, also can increase wear-resisting property and the corrosion resistance of bearing cover, bearing simultaneously, also there is good fatigue resistance, but can cause toughness and the Plasticity Decreasing of bearing cover, bearing.Therefore consider in bearing cover in the present invention, bearing and add 0.50-0.80%Cr element.
It is the effect of crystal grain thinning that Mo is joined to effect maximum in bearing cover of the present invention, bearing.Maximizing ground increases intensity and the hardness of bearing cover, bearing, improves hardenability and thermostrength and the mechanical property of bearing cover, bearing simultaneously.When the Mo too high levels in bearing cover, bearing, can reduce on the contrary the toughness of bearing cover, bearing, and Mo's is expensive, too much Mo can increase the cost of material.Therefore in bearing cover of the present invention, bearing, add the Mo of 0.05-0.10%.
The outstanding role of Cu in bearing cover, bearing is the weather-resistant that improves bearing cover, bearing, and while being used in conjunction with P, effect is particularly evident.When Cu content is more than 0.1%, it can effectively improve intensity and the toughness of bearing cover, bearing, but in the time that Cu content exceedes 0.20%, can reduce the welding performance of bearing cover, bearing, and increases the red shortness of bearing cover, bearing.The experiment proved that, in linear bearing bearing cover of the present invention, bearing, add the addition of C u, can effectively increase the stability of bearing cover, bearing material, and improve intensity, toughness, the corrosion resistance of bearing cover, bearing.
Ni element can not only effectively improve the intensity of bearing cover, bearing in bearing cover, bearing, can ensure again bearing cover, plasticity and toughness that bearing is good, and improve its hardenability, corrosion resistance and weldability.When the part Ni element adding, the raising of bearing cover, bearing intensity is comparatively obvious, but Ni element is a kind of scarce resource, price comparison costliness, and too much Ni not only can increase cost of production and also can exert an adverse impact to bearing cover, bearing.Therefore the present invention the most at last the Ni control of element in bearing cover, bearing in 0.10%.
S is present in bearing cover, bearing as a kind of harmful element, and it can make bearing cover, bearing produce red shortness.Through experimental results demonstrate, though S is harmful matter, if but be present in the decline that can prevent bearing cover, bearing part performance in bearing cover, bearing in not affecting other performances with trace element, if the scope control of S is being not more than to 0.025%, be conducive to the processing of bearing cover, bearing, and make the smooth surface of bearing cover, bearing.
P is the same with S, also can make the toughness of bearing cover, bearing and plasticity obviously decline, in the time that temperature reduces, this phenomenon is particularly serious, be referred to as cold shortness, and P can make the welding performance of bearing cover, bearing reduce, make the clod wash variation of bearing cover, bearing.But P exists in bearing cover, bearing with trace element, be conducive to the processibility of bearing cover, bearing.The experiment proved that, the content of P in bearing cover, bearing is controlled at while being not more than 0.025%, and P element is minimum on the impact of bearing cover, bearing performance, but can suitably improve the processibility of bearing cover, bearing.
As preferably, described bearing cover, bearing are grouped into by the one-tenth of following weight percentage: C:0.13%, Si:0.28%, Mn:0.70%, Cr:0.70%, Mo:0.08%, Cu≤0.20%, Ni≤0.10%, S≤0.025%, P≤0.025%, surplus is Fe and other inevitable impurity.
As preferably, described bearing cover, bearing are grouped into by the one-tenth of following weight percentage: C:0.12%, Si:0.30%, Mn:0.50%, Cr:0.80%, Mo:0.05%, Cu≤0.20%, Ni≤0.10%, S≤0.025%, P≤0.025%, surplus is Fe and other inevitable impurity.
As preferably, described bearing cover, bearing are grouped into by the one-tenth of following weight percentage: C:0.15%, Si:0.25%, Mn:0.80%, Cr:0.50%, Mo:0.10%, Cu≤0.20%, Ni≤0.10%, S≤0.025%, P≤0.025%, surplus is Fe and other inevitable impurity.
Wherein, the preparation method of described bearing cover, bearing, comprises forging process and heat treatment; In forging process, initial forging temperature is 1100 DEG C-1140 DEG C, and final forging temperature is 780 DEG C-830 DEG C; In heat treatment step, in the time that being 850 DEG C-950 DEG C, temperature quenches, after quenching, be first incubated 2-4 hour; Tempering in the time that temperature is 470-520 DEG C, is incubated 3-4 hour again after tempering.
First forge the operation of after-baking and simplify production technology, reduce energy consumption, and can make equally foundry goods there is the performance level after conventional heat treatment.Due to the method quenching temperature that can be rapidly heated immediately, so just shorten the time that carbide dissolves again.Therefore, the performance of bearing cover, bearing is significantly improved.
In above-mentioned high pressure blower, described bearing support comprises the convex annular edge being connected on bearing cover side, the madial wall drive fit on the outer side wall of above-mentioned bearing outer ring and convex annular edge, and the internal diameter of described through hole is less than the internal diameter on convex annular edge.Bearing outer ring clamping be connected in convex annular along in, the internal diameter of through hole is less than the internal diameter on convex annular edge, bearing one end can be resisted against on bearing cover madial wall, therefore wind bucket madial wall also bearing play axial limiting effect.
In above-mentioned high pressure blower, in described bearing support, be also fixed with bearing shim, described bearing face is pressed on bearing shim, and bearing shim is pressed on bearing cover side.Bearing shim can avoid bearing directly to contact with bearing cover, and bearing is played a protective role, and also plays seal action simultaneously, avoids liquid to enter motor.
In above-mentioned high pressure blower, described wind bucket has an annular connecting groove around output shaft on a side side of bearing cover, in described connecting groove, is fixed with oil sealing.Oil sealing plays seal action, avoids liquid runs down output shaft to flow.
In above-mentioned high pressure blower, described bearing cover is in the form of annular discs, and is connected on wind bucket side by bolt, and described wind bucket opposite side is fixed with wind lid on side.Wind lid is to be also bolted on wind bucket, easy accessibility.
Compared with prior art, this high pressure blower has the following advantages:
1, because bearing cover is between wind bucket and motor; bearing is connected in bearing support; therefore in the time that the fan blade in wind bucket is worked; the liquid such as rainwater that is inhaled into wind bucket can flow along output shaft; in the time flowing to bearing place, can be stopped by bearing; avoid liquid to continue to flow into motor along output shaft, motor is played a protective role.
2, because wind bucket has an annular connecting groove around output shaft on a side side of bearing cover, in connecting groove, be fixed with oil sealing, therefore avoid liquid runs down output shaft to flow.
3, owing to being also fixed with bearing shim in bearing support, bearing shim can avoid bearing directly to contact with bearing cover, and bearing is played a protective role, and also plays seal action simultaneously, avoids liquid to enter motor.
4, the bearing steel material of bearing cover, bearing passes through reasonable compatibility, improve its hardness, wear resistance, contact fatigue strength, and good toughness, dimensional stability, anti-corrosion and cold and hot working performance, thereby improve the mechanical property of high pressure blower, and extend the working life of high pressure blower.
Brief description of the drawings
Fig. 1 is the structure explosive view of this high pressure blower.
Fig. 2 is the structure sectional view of this high pressure blower.
Fig. 3 is the structure enlarged view at A place in Fig. 2.
In figure, 1, wind bucket; 11, connecting groove; 2, motor; 21, output shaft; 3, bearing cover; 31, through hole; 32, bearing support; 33, convex annular edge; 4, fan blade; 5, bearing; 6, bearing shim; 7, oil sealing; 8, Feng Gai.
Embodiment
Be below specific embodiments of the invention by reference to the accompanying drawings, technological scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As Fig. 1, shown in Fig. 2, a kind of high pressure blower, comprise wind bucket 1 and motor 2, the sidewall home position of wind bucket 1 offers center hole, the output shaft 21 of motor 2 stretches into wind bucket 1, and be fixed with fan blade 4 at the inserting end of output shaft 21, wind bucket 1 is fixed with the bearing cover 3 of a circle on a side outer side surface of motor 2, the home position of bearing cover 3 offers through hole 31, motor 2, bearing cover 3 and wind bucket 1 are fixed together, output shaft 21 free ends of motor 2 stretch in wind bucket 1 through the center hole of through hole 31 and wind bucket 1 successively, fan blade 4 is connected in the free end of output shaft 21, bearing cover 3 is between wind bucket 1 and motor 2, bearing cover 3 has a bearing support 32 around through hole 31 on a side side of motor 2, in bearing support 32, be fixed with bearing 5, output shaft 21 is through bearing 5, and output shaft 21 is connected mutually with bearing 5 inner rings, therefore in the time that the fan blade 4 in wind bucket 1 is worked, the liquid such as rainwater that is inhaled into wind bucket 1 can flow along output shaft 21, in the time flowing to bearing 5 place, can be stopped by bearing 5, avoid liquid to continue to flow into motor 2 along output shaft 21, motor 2 is played a protective role.
Specifically, shown in Fig. 3, bearing support 32 comprises that the convex annular being connected on bearing cover 3 sides is along 33, the outer side wall of bearing 5 outer rings and the convex annular madial wall drive fit along 33, the internal diameter of through hole 31 is less than the internal diameter of convex annular along 33, and bearing 5 outer ring clampings are connected in convex annular along in 33, and the internal diameter of through hole 31 is less than the internal diameter of convex annular along 33, be that bearing 5 one end can be resisted against on bearing cover 3 madial walls, therefore wind bucket 1 madial wall also bearing 5 play axial limiting effect.In bearing support 32, be also fixed with bearing shim 6; bearing 5 end faces are pressed on bearing shim 6; bearing shim 6 is pressed on bearing cover 3 sides; bearing shim 6 can avoid bearing 5 directly to contact with bearing cover 3; bearing 5 is played a protective role; also play seal action, avoid liquid to enter motor 2 simultaneously.Wind bucket 1 has an annular connecting groove 11 around output shaft 21 on a side side of bearing cover 3, is fixed with oil sealing 7 in connecting groove 11, and oil sealing 7 plays seal action, avoids liquid runs down output shaft 21 to flow.Bearing cover 3 is in the form of annular discs, and is connected on wind bucket 1 side by bolt, and wind bucket is fixed with wind lid 8 on 1 opposite side side, and wind lid 8 is to be also bolted on wind bucket 1, easy accessibility.
Wherein, above-mentioned high pressure blower middle (center) bearing cover plate, bearing are Bearing Steel, according to GB/T3203-82 regulation G20CrMo composition and mass percent thereof be: C:0.17-0.23%, Si:0.20-0.35%, Mn:0.65-0.95%, Cr:0.35-0.65%, Mo:0.08-0.15%, Cu≤0.25%, S≤0.03%, P≤0.03%, surplus is Fe and other inevitable impurity.In order to obtain the good bearing cover of performance, bearing, on the basis of existing G20CrMo Bearing Steel chemical composition, on the basis that meets above-mentioned chemical composition, the strict composition proportion of controlling each alloying element, determine that composition and mass percent thereof are: C:0.12-0.15%, Si:0.25-0.30%, Mn:0.50-0.80%, Cr:0.50-0.80%, Mo:0.05-0.10%, Cu≤0.20%, Ni≤0.10%, S≤0.025%, P≤0.025%, surplus is Fe and other inevitable impurity.
Table 1: the composition of embodiment of the present invention 1-3 bearing cover, bearing and mass percent thereof
Embodiment 1
Take raw material by component and the mass percent thereof of bearing cover described in table 1 embodiment 1, bearing, the component of bearing cover, bearing and mass percent thereof to bearing cover, bearing performance have a certain impact, the bearing cover of its preparation process on final formation, bearing performance also have larger impact.The preparation method of described bearing cover, bearing, comprises forging process and heat treatment; In forging process, initial forging temperature is 1110 DEG C, and final forging temperature is 810 DEG C; In heat treatment step, in the time that being 860 DEG C, temperature quenches, after quenching, be first incubated 3 hours; Tempering in the time that temperature is 480 DEG C, is incubated 3 hours after tempering again.
Embodiment 2
Take raw material by component and the mass percent thereof of bearing cover described in table 1 embodiment 2, bearing, the component of bearing cover, bearing and mass percent thereof to bearing cover, bearing performance have a certain impact, the bearing cover of its preparation process on final formation, bearing performance also have larger impact.The preparation method of described bearing cover, bearing, comprises forging process and heat treatment; In forging process, initial forging temperature is 1100 DEG C, and final forging temperature is 780 DEG C; In heat treatment step, in the time that being 850 DEG C, temperature quenches, after quenching, be first incubated 2 hours; Tempering in the time that temperature is 470 DEG C, is incubated 3 hours after tempering again.
Embodiment 3
Take raw material by component and the mass percent thereof of bearing cover described in table 1 embodiment 3, bearing, the component of bearing cover, bearing and mass percent thereof to bearing cover, bearing performance have a certain impact, the bearing cover of its preparation process on final formation, bearing performance also have larger impact.The preparation method of described bearing cover, bearing, comprises forging process and heat treatment; In forging process, initial forging temperature is 1140 DEG C, and final forging temperature is 830 DEG C; In heat treatment step, in the time that being 950 DEG C, temperature quenches, after quenching, be first incubated 4 hours; Tempering in the time that temperature is 520 DEG C, is incubated 4 hours after tempering again.
The bearing cover making in embodiment 1-3, bearing are carried out to testing property, and test result is as shown in table 2.
The bearing cover that table 2: embodiment of the present invention 1-3 makes, the performance test results of bearing
From table 1 and table 2, bearing cover in high pressure blower of the present invention, Selection of Bearings wear resistance high carburizing bearing steel make, on the basis of the chemical composition of existing carburizing bearing steel G20CrMo, the strict composition proportion of controlling each alloying element, newly increase Ni content, further control Si, Mn, the essential elements such as Cu, and reduce C, the content of Mo, improve the content of Cr, improve bearing cover, the hardness of bearing, wear resistance, contact fatigue strength, and good toughness, dimensional stability, anti-corrosion and cold and hot working performance, thereby improve the mechanical property of high pressure blower, and extend working life of high pressure blower.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendments or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although more used the terms such as wind bucket 1, connecting groove 11, motor 2 herein, do not got rid of the possibility that uses other term.Use these terms to be only used to describe more easily and explain essence of the present invention; They are construed to any additional restriction is all contrary with spirit of the present invention.
Claims (9)
1. a high pressure blower, comprise wind bucket and motor, the output shaft of described motor stretches into wind bucket, and the inserting end at output shaft is fixed with fan blade, it is characterized in that, described wind bucket is fixed with the bearing cover of a circle on a side outer side surface of motor, the home position of described bearing cover offers through hole, bearing cover has a bearing support around through hole on a side side of motor, in described bearing support, be fixed with bearing, above-mentioned output shaft is through bearing, and output shaft is connected mutually with bearing inner race, wherein, described bearing cover, bearing is grouped into by the one-tenth of following weight percentage: C:0.12-0.15%, Si:0.25-0.30%, Mn:0.50-0.80%, Cr:0.50-0.80%, Mo:0.05-0.10%, Cu≤0.20%, Ni≤0.10%, S≤0.025%, P≤0.025%, surplus is Fe and other inevitable impurity.
2. according to the high pressure blower described in claim 1, it is characterized in that, described bearing cover, bearing are grouped into by the one-tenth of following weight percentage: C:0.13%, Si:0.28%, Mn:0.70%, Cr:0.70%, Mo:0.08%, Cu≤0.20%, Ni≤0.10%, S≤0.025%, P≤0.025%, surplus is Fe and other inevitable impurity.
3. according to the high pressure blower described in claim 1, it is characterized in that, described bearing cover, bearing are grouped into by the one-tenth of following weight percentage: C:0.12%, Si:0.30%, Mn:0.50%, Cr:0.80%, Mo:0.05%, Cu≤0.20%, Ni≤0.10%, S≤0.025%, P≤0.025%, surplus is Fe and other inevitable impurity.
4. according to the high pressure blower described in claim 1, it is characterized in that, described bearing cover, bearing are grouped into by the one-tenth of following weight percentage: C:0.15%, Si:0.25%, Mn:0.80%, Cr:0.50%, Mo:0.10%, Cu≤0.20%, Ni≤0.10%, S≤0.025%, P≤0.025%, surplus is Fe and other inevitable impurity.
5. according to the high pressure blower described in claim 1, it is characterized in that the preparation method of described bearing cover, bearing comprises forging process and heat treatment; In forging process, initial forging temperature is 1100 DEG C-1140 DEG C, and final forging temperature is 780 DEG C-830 DEG C; In heat treatment step, in the time that being 850 DEG C-950 DEG C, temperature quenches, after quenching, be first incubated 2-4 hour; Tempering in the time that temperature is 470-520 DEG C, is incubated 3-4 hour again after tempering.
6. according to the high pressure blower described in claim 1, it is characterized in that, described bearing support comprises the convex annular edge being connected on bearing cover side, the madial wall drive fit on the outer side wall of above-mentioned bearing outer ring and convex annular edge, and the internal diameter of described through hole is less than the internal diameter on convex annular edge.
7. according to the high pressure blower described in claim 1, it is characterized in that, in described bearing support, be also fixed with bearing shim, described bearing face is pressed on bearing shim, and bearing shim is pressed on bearing cover side.
8. according to the high pressure blower described in claim 1, it is characterized in that, described wind bucket has an annular connecting groove around output shaft on a side side of bearing cover, in described connecting groove, is fixed with oil sealing.
9. according to the high pressure blower described in claim 1, it is characterized in that, described bearing cover is in the form of annular discs, and is connected on wind bucket side by bolt, and described wind bucket opposite side is fixed with wind lid on side.Wind lid is to be also bolted on wind bucket, easy accessibility.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410256589.1A CN104088809B (en) | 2014-06-11 | 2014-06-11 | A kind of high pressure blower |
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| CN201410256589.1A CN104088809B (en) | 2014-06-11 | 2014-06-11 | A kind of high pressure blower |
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| CN104088809A true CN104088809A (en) | 2014-10-08 |
| CN104088809B CN104088809B (en) | 2016-05-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111102233A (en) * | 2020-01-07 | 2020-05-05 | 北京中科科仪股份有限公司 | Bearing mounting structure and heat-conducting grease filling method |
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| JPS61213348A (en) * | 1985-03-16 | 1986-09-22 | Daido Steel Co Ltd | Alloy tool steel |
| US4917860A (en) * | 1989-01-10 | 1990-04-17 | Carondelet Foundry Company | Corrosion resistant alloy |
| JPH11279695A (en) * | 1998-03-27 | 1999-10-12 | Kawasaki Steel Corp | Steel wire rod for bearing and its production |
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| CN111102233A (en) * | 2020-01-07 | 2020-05-05 | 北京中科科仪股份有限公司 | Bearing mounting structure and heat-conducting grease filling method |
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| CN104088809B (en) | 2016-05-25 |
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