CN111068849A - Improved generation grinds selection powder machine main shaft mechanism immediately and has its mill selection powder machine immediately - Google Patents
Improved generation grinds selection powder machine main shaft mechanism immediately and has its mill selection powder machine immediately Download PDFInfo
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- CN111068849A CN111068849A CN201911421297.8A CN201911421297A CN111068849A CN 111068849 A CN111068849 A CN 111068849A CN 201911421297 A CN201911421297 A CN 201911421297A CN 111068849 A CN111068849 A CN 111068849A
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- 239000000843 powder Substances 0.000 title claims abstract description 48
- 230000007246 mechanism Effects 0.000 title claims abstract description 33
- 239000010687 lubricating oil Substances 0.000 claims abstract description 53
- 239000000428 dust Substances 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims description 32
- 238000009413 insulation Methods 0.000 claims description 13
- 239000004519 grease Substances 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 9
- 210000004907 gland Anatomy 0.000 claims description 9
- 238000005299 abrasion Methods 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 235000000396 iron Nutrition 0.000 claims 1
- 238000003801 milling Methods 0.000 claims 1
- 230000002265 prevention Effects 0.000 abstract description 9
- 238000005461 lubrication Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 description 12
- 230000001050 lubricating effect Effects 0.000 description 12
- 230000000694 effects Effects 0.000 description 6
- 238000009529 body temperature measurement Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 229910000746 Structural steel Inorganic materials 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C2015/008—Roller drive arrangements
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Abstract
The invention relates to an improved vertical mill powder concentrator main shaft mechanism and a vertical mill powder concentrator, wherein the main shaft mechanism comprises: an upper bearing set is welded on the stepped shaft section at the upper part of the main shaft body; the top of the upper bearing group is sealed with an upper bearing dustproof piece; a lower bearing set is welded on the stepped shaft section at the lower part of the main shaft body; the bottom of the lower bearing group is sealed with a lower bearing dustproof piece; the lubricating oil path comprises an upper bearing lubricating oil path and a lower bearing lubricating oil path; the lubricating oil way one end of upper portion bearing is connected to upper portion bearing group department, and the lubricating oil way one end of lower part bearing is connected to lower part bearing group department, and the electronic compulsory lubricating oil pump of the mill immediately is all connected to the other end of upper portion bearing lubricating oil way and the lubricating oil way of lower part bearing, and the lubricating oil pump is by the accuse program control in the mill immediately. The bearing provided by the invention plays an all-round protection in the aspects of lubrication, dust prevention and vibration, prolongs the overall service life of the main shaft body, reduces the maintenance cost and improves the operation rate of equipment. The integral structure of the invention is assembled in a workshop, and the field installation is simple and the reliability is high.
Description
Technical Field
The invention relates to the technical field of cement manufacturing equipment in the building material industry, in particular to an improved vertical mill powder concentrator main shaft mechanism and a vertical mill powder concentrator with the same.
Background
The vertical mill is widely used for grinding raw materials, coal powder, clinker and slag in a cement plant, a rotor of the vertical mill is driven by the rotation of a main shaft part, but the ambient working temperature of the main shaft is 100-150 ℃, the dust concentration is high, the main shaft part cannot be effectively maintained due to the position relation in the continuous operation of the vertical mill, so that the bearing damage rate is high, and the main reasons for the bearing damage include poor lubrication, dust entering, unstable bearing fixing structure, high temperature and the like. Once the main shaft part is damaged, the main machine of the vertical mill stops, the production line falls into a production stop state, and huge loss is caused. At present, the structural form of the main shaft part of the powder selecting machine of the vertical mill at home and abroad is continuously improved, but the overall effective consideration is lacked. Therefore, how to provide an improved spindle mechanism of a vertical mill powder concentrator is a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art.
Therefore, the invention aims to provide an improved spindle mechanism of a vertical mill powder concentrator, which improves the working environment of the spindle.
The invention provides an improved generation vertical mill selection powder machine main shaft mechanism, including:
a main shaft body,
the upper bearing set is welded on the stepped shaft section at the upper part of the main shaft body;
the upper bearing assembly is provided with an upper bearing dustproof piece in a sealing way at the top;
the lower bearing set is welded on the stepped shaft section at the lower part of the main shaft body;
the lower bearing dust-proof part is sealed at the bottom of the lower bearing group;
the lubricating oil path comprises an upper bearing lubricating oil path and a lower bearing lubricating oil path; the lubricating oil way one end of upper portion bearing is connected to upper portion bearing group department, and the lubricating oil way one end of lower part bearing is connected to lower part bearing group department, and the electronic compulsory lubricating oil pump of the mill immediately is all connected to the other end of upper portion bearing lubricating oil way and the lubricating oil way of lower part bearing, and the lubricating oil pump is by the accuse program control in the mill immediately.
According to the technical scheme, compared with the prior art, the invention discloses and provides the improved spindle mechanism of the vertical mill powder concentrator, the upper bearing group and the lower bearing group are arranged on the spindle body, the dustproof pieces are correspondingly arranged on the upper bearing group and the lower bearing group and used for preventing dust from entering, the forced lubricating grease pump of the vertical mill is connected with the lubricating oil way, and the lubricating grease of the upper bearing and the lower bearing is automatically injected through the control program control of the vertical mill, so that the aims of dust prevention and regular lubricating maintenance of the spindle body are fulfilled, and the working environment of the spindle is further improved.
The top of the bearing supporting part is fixed with a flange at the top of the vertical mill discharging shell, and the middle lower part of the bearing supporting part is in on-site adjustment welding with the discharging shell; the bearing supporting part is frustum-shaped from top to bottom, and the setting of the bearing supporting part not only plays the purpose of isolating external heat, but also increases the stability of bearing fixation, and lightens the integral vibration of the high-speed rotation of the rotor to the bearing during working.
Furthermore, the temperature-measuring device also comprises a temperature-measuring sensor, wherein the temperature-measuring sensor is inserted into the lower bearing group and is electrically connected with the vertical mill central control for monitoring the temperature, the temperature is higher than a threshold value, and the vertical mill central control information alarms or stops. Because main shaft body sub-unit connection rotor, lower part bearing group are located and grind the selection powder intracavity immediately, therefore the operating condition of lower part bearing department is more abominable, consequently is provided with temperature measuring element in lower part bearing group department for the temperature of real-time supervision bearing department, the temperature is too high, reports to the police or shuts down through accuse information in grinding immediately, prevents the wearing and tearing of main shaft.
Furthermore, a protection pipeline is arranged outside the circuit of the temperature measurement sensor, and an anti-abrasion angle iron is welded outside the protection pipeline to prevent the circuit of the temperature measurement sensor from being abraded.
Further, the upper bearing set comprises an upper bearing seat, a thrust self-aligning roller bearing, a spacer sleeve, a self-aligning roller bearing and a bearing inner retainer ring; the outer part of the upper bearing seat is welded with a flange at the top of a vertical mill discharging shell, and a thrust self-aligning roller bearing, a spacing sleeve, a self-aligning roller bearing and a bearing inner retainer ring are sequentially arranged in the upper bearing seat from bottom to top; the upper bearing dustproof piece is sleeved on the upper part of the main shaft body and corresponds to the inner retainer ring of the bearing for preventing dust; one end of the upper bearing lubricating oil path is connected to the inside of the bearing inner retainer ring.
Furthermore, an upper bearing oil-proof sealing ring is installed in a groove in the lower portion of the upper bearing seat, and a wear-resistant shaft sleeve is sleeved at the position, corresponding to the upper bearing oil-proof sealing ring, of the main shaft body.
Two sets of bearings are arranged at the upper bearing, the two sets of bearings are positioned outside the vertical mill, the dustproof lip-shaped sealing ring is adopted at the top, and the oil-proof Z-shaped sealing ring is adopted at the lower part, so that the requirements of lubricating oil storage and dust prevention are met.
Further, the lower bearing group comprises a lower bearing seat, a lower self-aligning roller bearing, a lower bearing inner retainer ring and a sealing gland; the outer wall of the lower bearing seat is welded at the bottom of the bearing supporting part, and a lower self-aligning roller bearing, a lower bearing inner retainer ring, a lower bearing dustproof piece and a sealing gland are sequentially arranged in the lower bearing seat from top to bottom; one end of the lower bearing lubricating oil path is inserted into one side of the lower bearing seat, and the temperature sensor is arranged on the opposite side of the lower bearing seat. The lower part bearing is located and grinds inside immediately, and operating mode environment is abominable, adopts twice lip dustproof sealing circle, one set of mechanical labyrinth seal, one set of sealed wind dustproof construction, then seals through gland, and three seal structure can prevent effectively that the dust from getting into bearing department.
The spindle body is provided with a bearing seat, a shaft coupling and an air cooling heat insulation cover, wherein the shaft coupling is arranged on the lower portion of the spindle body; wherein, the lower bearing lubricating oil path and the temperature sensor both pass through the air-cooled heat shield and then enter the lower bearing seat. The air-cooled heat shield and the high temperature in the powder concentrator form an isolation area, and the outside of the air-cooled heat shield is connected with a vertical mill sealing fan pipeline to play the functions of cooling and heat insulation. The air-cooled sealed heat insulation cover is designed to be of a tapered structure, so that waste oil is conveniently discharged. The air inlet forms the air cooling effect from the vertical mill sealing fan, hot air is discharged from the circumferential clearance after the air cooling effect is formed on the bearing, the high air speed at the circumferential clearance forms the sealing air dustproof effect, and dust in the mill is prevented from entering the air cooling sealing heat insulation device.
Further, the air-cooled heat shield comprises a first half shield body and a second half shield body, the first half shield body and the second half shield body are detachably connected, and a sealing element is arranged at the joint. The air-cooled heat shield is of a two-half structure, so that the air-cooled heat shield is convenient to disassemble and overhaul on site.
The invention also aims to provide a vertical mill powder concentrator, which comprises a vertical mill powder concentrator body and the improved vertical mill powder concentrator main shaft mechanism; the top of the main shaft mechanism is driven to rotate by a motor of the vertical mill powder concentrator, and the bottom of the main shaft mechanism is in power connection with a rotor of the vertical mill powder concentrator through a coupler. According to the technical scheme, compared with the prior art, the upper bearing group and the lower bearing group are arranged on the main shaft body, the dustproof pieces are correspondingly arranged on the upper bearing group and the lower bearing group and used for preventing dust from entering, the forced lubricating grease pump of the vertical mill is connected with the lubricating oil way, and the lubricating grease of the upper bearing and the lower bearing is automatically injected through the control program control of the vertical mill, so that the purposes of dust prevention and periodic lubrication maintenance of the main shaft body are achieved, the working environment of the main shaft is improved, and the service life of the main shaft body is prolonged.
In conclusion, the improved spindle mechanism of the vertical mill powder concentrator, which is composed of the three sets of bearings, the two sets of independent lubricating pipelines, the one set of bearing temperature measuring device, the one set of air cooling heat insulation device and the bearing supporting device, plays an all-round role in protecting the bearings in the aspects of lubrication, dust prevention, vibration and the like, prolongs the overall service life of the spindle body, reduces the maintenance cost and improves the operation rate of equipment. The integral structure of the invention is assembled in a workshop, and the field installation is simple and the reliability is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a sectional view of a spindle mechanism of an improved vertical mill powder concentrator provided by the invention;
FIG. 2 is a schematic view of an external installation of a spindle mechanism of an improved vertical mill powder concentrator provided by the invention;
FIG. 3 is an enlarged view of section I of the drawing of FIG. 1 (a partially enlarged schematic view of the upper bearing set);
FIG. 4 is an enlarged view of section II of the drawing of FIG. 1 (a partially enlarged view of the lower bearing set);
FIG. 5 is a partial schematic view of an air-cooled heat shield;
in the figure: 100-main shaft body, 200-upper bearing group, 201-upper bearing seat, 202-self-aligning thrust roller bearing, 203-spacer sleeve, 204-self-aligning roller bearing, 205-upper bearing oil-proof sealing ring, 300-upper bearing dustproof piece, 400-lower bearing group, 401-lower bearing seat, 402-lower self-aligning roller bearing, 403-sealing gland, 500-lower bearing dustproof piece, 600-lubricating oil way, 601-upper bearing lubricating oil way, 602-lower bearing lubricating oil way, 700-bearing supporting part, 800-temperature measurement sensor and 900-air cooling heat insulation cover.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1, the present invention provides an improved spindle mechanism of a vertical mill powder concentrator, comprising:
the main shaft body 100 is provided with a main shaft body,
an upper bearing set 200, wherein the upper bearing set 200 is welded on the stepped shaft section at the upper part of the main shaft body 100;
an upper bearing dust-proof member 300, the upper bearing dust-proof member 300 being sealed at the top of the upper bearing set 200;
a lower bearing set 400 welded to a stepped shaft section of the lower part of the main shaft body 100;
a lower bearing dust-proof member 500, the lower bearing dust-proof member 500 being sealed at the bottom of the lower bearing set 400;
the lubricating oil path 600 comprises an upper bearing lubricating oil path 601 and a lower bearing lubricating oil path 602; one end of an upper bearing lubricating oil path 601 is connected to the upper bearing group 200, one end of a lower bearing lubricating oil path 602 is connected to the lower bearing group 400, the other ends of the upper bearing lubricating oil path 601 and the lower bearing lubricating oil path 602 are connected with a vertical mill electric forced lubricating oil pump, and the lubricating oil pump is controlled by a vertical mill central control program.
The invention discloses an improved spindle mechanism of a vertical mill powder concentrator, which is characterized in that an upper bearing group and a lower bearing group are arranged on a spindle body, dustproof pieces are correspondingly arranged on the upper bearing group and the lower bearing group to prevent dust from entering, a forced lubricating grease pump of the vertical mill is connected with a lubricating oil circuit, and lubricating grease of the upper bearing and the lower bearing is automatically injected through control program control of the vertical mill, so that the purposes of dust prevention and periodic lubrication maintenance of the spindle body are realized, and the working environment of the spindle is improved.
In one embodiment of the invention, the vertical mill discharging shell further comprises a bearing supporting part 700, the top of the bearing supporting part 700 is fixed with a flange at the top of the vertical mill discharging shell, and the middle lower part of the bearing supporting part is in on-site adjustment welding with the discharging shell. The bearing supporting part is frustum-shaped from top to bottom, and the setting of the bearing supporting part not only plays the purpose of isolating external heat, but also increases the stability of bearing fixation, and lightens the integral vibration of the high-speed rotation of the rotor to the bearing during working.
In another embodiment of the present invention, a temperature measuring sensor 800 is further included, the temperature measuring sensor 800 is inserted into the lower bearing set 400 and is electrically connected with the vertical mill central control for monitoring the temperature, the temperature is higher than a threshold value, and the vertical mill central control gives an alarm or stops. Because main shaft body sub-unit connection rotor, lower part bearing group are located and grind the selection powder intracavity immediately, therefore the operating condition of lower part bearing department is more abominable, consequently is provided with temperature measuring element in lower part bearing group department for the temperature of real-time supervision bearing department, the temperature is too high, reports to the police or shuts down through accuse information in grinding immediately, prevents the wearing and tearing of main shaft.
Advantageously, the outside of the circuit of the temperature sensor 800 is provided with a protective pipeline, and an anti-abrasion angle iron is welded outside the protective pipeline. The circuit abrasion of the temperature measuring sensor is prevented.
Referring to fig. 3, the upper bearing set 200 includes an upper bearing seat 201, a thrust self-aligning roller bearing 202, a spacer 203, a self-aligning roller bearing 204 and an inner bearing retainer ring; the outer part of the upper bearing seat 201 is welded with a flange at the top of a vertical mill discharging shell, and a thrust self-aligning roller bearing 202, a spacing sleeve 203, a self-aligning roller bearing 204 and a bearing inner retainer ring are sequentially arranged in the upper bearing seat from bottom to top; the upper bearing dustproof piece 300 is sleeved on the upper part of the main shaft body 100 and corresponds to the inner retainer ring of the bearing for preventing dust; one end of the upper bearing lubricating oil path 601 is connected to the inside of the inner retainer ring of the bearing.
Advantageously, an upper bearing oil-proof sealing ring 205 is installed in a lower groove of the upper bearing seat 201, and a wear-resistant shaft sleeve is sleeved on the spindle body 100 corresponding to the upper bearing oil-proof sealing ring 205.
Two sets of bearings are arranged at the upper bearing, the two sets of bearings are positioned outside the vertical mill, the dustproof lip-shaped sealing ring is adopted at the top, and the oil-proof Z-shaped sealing ring is adopted at the lower part, so that the requirements of lubricating oil storage and dust prevention are met.
Referring to fig. 4, the lower bearing set 400 includes a lower bearing seat 401, a lower self-aligning roller bearing 402, a lower bearing inner retainer ring, and a gland 403; the outer wall of the lower bearing pedestal 401 is welded at the bottom of the bearing supporting part 700, and a lower self-aligning roller bearing 402, a lower bearing inner retainer ring, a lower bearing dustproof piece 500 and a sealing gland 403 are sequentially arranged in the lower self-aligning roller bearing from top to bottom; one end of the lower bearing lubrication oil path 602 is inserted into one side of the lower bearing block 401, and the temperature sensor 800 is disposed on the opposite side of the lower bearing block 401. The lower part bearing is located and grinds inside immediately, and operating mode environment is abominable, adopts twice lip dustproof sealing circle, one set of mechanical labyrinth seal, one set of sealed wind dustproof construction, then seals through gland, and three seal structure can prevent effectively that the dust from getting into bearing department.
In other embodiments of the present invention, referring to fig. 2, 4 and 5, the present invention further includes an air-cooled heat shield 900, the air-cooled heat shield 900 is installed outside the lower bearing seat 401, an air-cooled heat insulation region is formed between an inner wall of the air-cooled heat shield 900 and the lower bearing seat 401, an air inlet of the air-cooled heat shield 900 is arranged on an outer wall thereof (an arrow on a side wall in fig. 5), the air inlet is communicated with the vertical mill sealing fan, a coupler is connected to a lower portion of the spindle body 100, and an annular gap formed between a lower portion of the air-cooled heat shield 900 and the coupler is an outlet for discharging air and waste grease (an arrow on a; wherein, the lower bearing lubricating oil path 602 and the temperature sensor 800 both pass through the air-cooled heat shield 900 and then enter the lower bearing seat 401. The air-cooled heat shield and the high temperature in the powder concentrator form an isolation area, and the outside of the air-cooled heat shield is connected with a vertical mill sealing fan pipeline to play the functions of cooling and heat insulation. The air-cooled sealed heat insulation cover is designed to be of a tapered structure, so that waste oil is conveniently discharged. The air inlet forms the air cooling effect from the vertical mill sealing fan, hot air is discharged from the circumferential clearance after the air cooling effect is formed on the bearing, the high air speed at the circumferential clearance forms the sealing air dustproof effect, and dust in the mill is prevented from entering the air cooling sealing heat insulation device.
Advantageously, the air-cooled heat shield 900 includes a first half and a second half, the first half and the second half being removably coupled, and a seal being disposed at the coupling. The air-cooled heat shield is of a two-half structure, so that the air-cooled heat shield is convenient to disassemble and overhaul on site.
The invention also provides a vertical mill powder concentrator, which comprises a vertical mill powder concentrator body and the improved vertical mill powder concentrator main shaft mechanism; the top of the main shaft mechanism is driven to rotate by a motor of the vertical mill powder concentrator, and the bottom of the main shaft mechanism is in power connection with a rotor of the vertical mill powder concentrator through a coupler. Compared with the prior art, the spindle has the advantages that the upper bearing group and the lower bearing group are arranged on the spindle body, the dustproof parts are correspondingly arranged on the upper bearing group and the lower bearing group and used for preventing dust from entering, the forced lubricating grease pump of the vertical mill is connected with the lubricating oil circuit, and the lubricating grease of the upper bearing and the lower bearing is automatically injected through the control program control of the vertical mill, so that the purposes of dust prevention and periodic lubricating maintenance of the spindle body are achieved, the working environment of the spindle is improved, and the service life of the spindle body is prolonged.
In conclusion, the improved spindle mechanism of the vertical mill powder concentrator, which is composed of the three sets of bearings, the two sets of independent lubricating pipelines, the one set of bearing temperature measuring device, the one set of air cooling heat insulation device and the bearing supporting device, plays an all-round role in protecting the bearings in the aspects of lubrication, dust prevention, vibration and the like, prolongs the overall service life of the spindle body, reduces the maintenance cost and improves the operation rate of equipment. The integral structure of the invention is assembled in a workshop, and the field installation is simple and the reliability is high.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. The utility model provides an improved generation grinds selection powder machine main shaft mechanism immediately which characterized in that includes:
a main shaft body (100),
the upper bearing set (200) is welded to the stepped shaft section at the upper part of the main shaft body (100);
the upper bearing dust-proof piece (300) is sealed at the top of the upper bearing set (200);
the lower bearing set (400) is welded to the lower stepped shaft section of the main shaft body (100);
the lower bearing dust-proof piece (500) is sealed at the bottom of the lower bearing set (400);
the lubricating oil path (600) comprises an upper bearing lubricating oil path (601) and a lower bearing lubricating oil path (602); one end of the upper bearing lubricating oil path (601) is connected to the upper bearing group (200), one end of the lower bearing lubricating oil path (602) is connected to the lower bearing group (400), the other ends of the upper bearing lubricating oil path (601) and the lower bearing lubricating oil path (602) are connected with a vertical mill electric forced lubricating oil pump, and the lubricating oil pump is controlled by a vertical mill central control program.
2. The improved spindle mechanism of the vertical mill powder concentrator as claimed in claim 1, further comprising a bearing support part (700), wherein the top of the bearing support part (700) is fixed with a flange at the top of a discharge shell of the vertical mill, and the middle lower part of the bearing support part is in on-site adjustment welding with the discharge shell.
3. The improved spindle mechanism of the vertical mill powder concentrator as claimed in claim 2, further comprising a temperature sensor (800), wherein the temperature sensor (800) is inserted into the lower bearing set (400) and is electrically connected with a vertical mill central control unit for monitoring temperature, the temperature is higher than a threshold value, and the vertical mill central control unit gives an alarm or stops.
4. The improved spindle mechanism of the vertical mill powder concentrator as claimed in claim 3, wherein a protective pipeline is arranged outside the circuit of the temperature measuring sensor (800), and anti-abrasion angle irons are welded outside the protective pipeline.
5. The improved spindle mechanism of the vertical mill powder concentrator as claimed in claim 4, wherein the upper bearing set (200) comprises an upper bearing seat (201), a thrust self-aligning roller bearing (202), a spacer sleeve (203), a self-aligning roller bearing (204) and an inner bearing retainer ring; the outer part of the upper bearing seat (201) is welded with a flange at the top of a vertical mill discharging shell, and the thrust self-aligning roller bearing (202), the spacing sleeve (203), the self-aligning roller bearing (204) and the bearing inner retainer ring are sequentially arranged in the upper bearing seat from bottom to top; the upper bearing dustproof piece (300) is sleeved on the upper part of the main shaft body (100) and corresponds to the bearing inner retainer ring for preventing dust; one end of the upper bearing lubricating oil path (601) is connected to the inside of the bearing inner retainer ring.
6. The improved spindle mechanism of the vertical mill powder concentrator as claimed in claim 5, wherein an upper bearing oil-proof sealing ring (205) is mounted in a groove at the lower part of the upper bearing seat (201), and a wear-resistant shaft sleeve is sleeved on the spindle body (100) corresponding to the upper bearing oil-proof sealing ring (205).
7. An improved main shaft mechanism of a vertical mill powder concentrator as claimed in claim 5, wherein the lower bearing set (400) comprises a lower bearing seat (401), a lower self-aligning roller bearing (402), a lower bearing inner retainer ring and a sealing gland (403); the outer wall of the lower bearing seat (401) is welded to the bottom of the bearing supporting part (700), and the lower self-aligning roller bearing (402), the lower bearing inner retainer ring, the lower bearing dustproof piece (500) and the sealing gland (403) are sequentially arranged in the lower bearing seat from top to bottom; one end of the lower bearing lubricating oil path (602) is inserted into one side of the lower bearing seat (401), and the temperature measuring sensor (800) is arranged on the opposite side of the lower bearing seat (401).
8. The improved spindle mechanism of the vertical mill powder concentrator is characterized by further comprising an air-cooled heat shield (900), wherein the air-cooled heat shield (900) is mounted outside the lower bearing seat (401), an air-cooled heat insulation area is formed between the inner wall of the air-cooled heat shield (900) and the lower bearing seat (401), an air inlet of the air-cooled heat shield (900) is formed in the outer wall of the air-cooled heat shield, the air inlet is communicated with a vertical mill sealing fan, the lower portion of the spindle body (100) is connected with a coupler, and an annular gap formed between the lower portion of the air-cooled heat shield (900) and the coupler is an air outlet and waste grease discharge port; the lower bearing lubricating oil path (602) and the temperature measuring sensor (800) penetrate through the air-cooled heat insulation cover (900) and then enter the lower bearing seat (401).
9. The improved spindle mechanism of the vertical mill powder concentrator as claimed in claim 8, wherein the air-cooled heat shield (900) comprises a first half shield body and a second half shield body, the first half shield body and the second half shield body are detachably connected, and a sealing element is arranged at the joint.
10. The utility model provides a vertical milling selection powder machine which characterized in that: comprises a vertical mill powder concentrator body and an improved vertical mill powder concentrator main shaft mechanism as claimed in any one of claims 1 to 9; the top of the main shaft mechanism is driven to rotate by a motor of the vertical mill powder concentrator, and the bottom of the main shaft mechanism is in power connection with a rotor of the vertical mill powder concentrator through a coupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911421297.8A CN111068849A (en) | 2019-12-31 | 2019-12-31 | Improved generation grinds selection powder machine main shaft mechanism immediately and has its mill selection powder machine immediately |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911421297.8A CN111068849A (en) | 2019-12-31 | 2019-12-31 | Improved generation grinds selection powder machine main shaft mechanism immediately and has its mill selection powder machine immediately |
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| CN111068849A true CN111068849A (en) | 2020-04-28 |
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| CN201911421297.8A Pending CN111068849A (en) | 2019-12-31 | 2019-12-31 | Improved generation grinds selection powder machine main shaft mechanism immediately and has its mill selection powder machine immediately |
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| CN204911736U (en) * | 2015-05-27 | 2015-12-30 | 新乡市长城机械有限公司 | Found bearing cooling device who grinds selection powder machine |
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| CN212189368U (en) * | 2019-12-31 | 2020-12-22 | 唐山冀东装备工程股份有限公司 | Improved generation grinds selection powder machine main shaft mechanism immediately and has its mill selection powder machine immediately |
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| CN1688827A (en) * | 2002-09-13 | 2005-10-26 | 光洋精工株式会社 | Bearing device |
| CN202597707U (en) * | 2012-05-31 | 2012-12-12 | 江苏吉能达建材设备有限公司 | Lower bearing pedestal of powder concentrator transmission shaft |
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