CN111706610A - Thrust bearing device of internal-adjustment guide bush type vertical mill - Google Patents
Thrust bearing device of internal-adjustment guide bush type vertical mill Download PDFInfo
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- CN111706610A CN111706610A CN202010588009.4A CN202010588009A CN111706610A CN 111706610 A CN111706610 A CN 111706610A CN 202010588009 A CN202010588009 A CN 202010588009A CN 111706610 A CN111706610 A CN 111706610A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/103—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing
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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
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/1045—Details of supply of the liquid to the bearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/74—Sealings of sliding-contact bearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Food Science & Technology (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention discloses a thrust bearing device of an internal adjusting guide shoe type vertical mill, which comprises a sliding rotor, a thrust disc and a frame, wherein the thrust disc is fixed on the sliding rotor; the lower part of the connecting shaft sleeve body is inserted and sleeved in the middle through hole of the rack; the bottom surfaces of the edges of the thrust disc are pressed against a plurality of thrust pads, a plurality of mounting grooves are formed in the top surface of the bottom plate at the outer side of the rack, the compression-resistant blocks are inserted and sleeved in the mounting grooves, the bottom surfaces of the compression-resistant blocks are pressed against the bottom surfaces of the mounting grooves, a lower mounting groove is formed in the middle of the bottom surfaces of the thrust pads, the supporting blocks are inserted and sleeved in the lower mounting grooves, and the top surfaces of the supporting blocks are pressed against the top surfaces of the lower mounting grooves; the novel thrust disc can be directly connected with a power output shaft of the permanent magnet motor to realize rotation, the thrust disc is supported through the guide shoe and the thrust shoe, normal rotation use of the thrust disc is guaranteed, the sealing effect is good, operation is stable, and the service life is long.
Description
The technical field is as follows:
the invention relates to the technical field of bearing bush bearings, in particular to a thrust bearing device of an internal adjusting guide bush type vertical mill.
Background art:
the vertical mill is a grinding machine widely used in cement, coal, electric power, chemical industry and other departments, and has the characteristics of integration of drying, grinding and powder selection, high grinding efficiency, high drying capacity, large granularity of the materials to be ground, simple and compact process flow, compact structure, small occupied area, low power consumption, low steel consumption, low noise, small dust emission, small abrasion of the grinding roller, long service life, easy operation and the like.
The existing driving mechanism of the vertical mill is generally that a motor drives a speed reducer to operate, the speed reducer transmits force to a thrust bearing at the top through a pair of bevel gears and planet gears, a grinding disc is installed on the thrust bearing, so that the grinding disc is driven to rotate, the structure of the existing driving mechanism is complex and large in size, meanwhile, the existing variable-frequency permanent magnet motor can directly drive the thrust bearing (the thrust disc) to rotate, the grinding disc is rotated to reduce the size of the existing driving mechanism, however, the existing driving mechanism is generally provided with a thrust bearing bush and a rolling bearing to be matched for use in a guide thrust bearing structure matched with the permanent magnet motor, the service life of the rolling bearing is short, the existing driving mechanism needs frequent maintenance, and is very troublesome, and the.
The invention content is as follows:
the invention aims to overcome the defects of the prior art and provides an internal adjustment guide shoe type vertical mill thrust bearing device which can be directly connected with a power output shaft of a permanent magnet motor to realize rotation, is supported by a guide shoe and a thrust shoe to ensure the normal rotation use of a thrust disc, and has the advantages of good sealing effect, stable operation and long service life.
The scheme for solving the technical problems is as follows:
a thrust bearing device of an internal adjusting guide shoe type vertical mill comprises a sliding rotor, a thrust disc and a frame, wherein the thrust disc is fixed on the sliding rotor, and a power output shaft is inserted in a connecting shaft sleeve body formed in the middle of the sliding rotor and is fixed in the sliding rotor through key connection;
the lower part of the connecting shaft sleeve body is inserted and sleeved in the middle through hole of the rack;
the bottom surfaces of the edges of the thrust disc are pressed against a plurality of thrust pads, a plurality of mounting grooves are formed in the top surface of the bottom plate at the outer side of the rack, the compression-resistant blocks are inserted and sleeved in the mounting grooves, the bottom surfaces of the compression-resistant blocks are pressed against the bottom surfaces of the mounting grooves, a lower mounting groove is formed in the middle of the bottom surfaces of the thrust pads, the supporting blocks are inserted and sleeved in the lower mounting grooves, the top surfaces of the supporting blocks are pressed against the top surfaces of the lower mounting grooves, and the bottom surfaces of the supporting blocks are pressed against the top surfaces of;
the middle part top surface of the bottom plate of frame is fixed with annular support block, the upper portion lateral wall shaping of smooth rotor has the annular part, the loop shape plug bush is in annular support block, the spiro union has the regulation double-screw bolt on the radial spiro union through-hole that shaping has on the lateral wall of annular support block, the inner of regulation double-screw bolt stretches out the inside wall and the shaping of annular support block have the collateral branch supporting block of annular support block, be equipped with a plurality of guide tiles between annular part and the annular support block, the lateral wall of loop shape is hugged closely to the internal face of guide tile, the collateral branch supporting block plug bush is in the fashioned mounting groove in the lateral wall middle part of the guide tile that corresponds, the interior.
The outer end of the adjusting stud extends out of the outer side wall of the annular supporting block and is fixed with a rotating part.
And a rotating dial is fixed on the rotating part.
The inner end surface of the side support block is a spherical surface which is pressed against the inner end surface of the mounting groove.
The top surface of the annular supporting block is fixed with a plurality of upper limiting blocks, the bottom surface of each upper limiting block is formed with an upper limiting convex strip, the top surface of the top plate of the rack at the inner side of the annular supporting block is formed with a lower annular convex strip, the upper limiting convex strip is inserted in an upper annular groove formed in the top surface of the corresponding guide shoe, and the lower annular convex strip is inserted in a lower annular groove formed in the bottom surface of the guide shoe.
The bottom surface of the supporting block is a spherical surface which is pressed against the top surface of the pressure resisting block.
An upper annular groove is formed in the middle of the top surface of the thrust shoe.
An outer sleeve body is fixed on the top surface of the outer side edge of the rack, a thrust disc is inserted and sleeved in the upper portion of the outer sleeve body, a middle through hole is formed in the middle of a bottom plate of the rack, a first oil blocking cylinder and a second oil blocking cylinder are fixed on the top surface of the bottom plate of the rack at the middle through hole, the second oil blocking cylinder is inserted and sleeved in the first oil blocking cylinder, the top end of the first oil blocking cylinder is higher than the second oil blocking cylinder, an annular mounting groove is formed in the position, close to the annular portion, of the top surface of the annular mounting groove, an upper annular groove is formed in the position, close to the annular portion, of the top surface of the annular mounting groove, and the upper portion of the first oil blocking cylinder is inserted and sleeved in the upper annular groove;
a first sealing annular block is fixed on the side wall of the top of the first oil baffle cylinder and pressed against the inner side wall of the upper annular groove, a second sealing annular block is fixed on the side wall of the upper part of the second oil baffle cylinder and pressed against the outer side wall of the connecting shaft sleeve body;
an upper annular sealing block is fixed on the top surface of the outer side edge of the thrust disc, a lower annular sealing block is fixed on the top surface of the outer sleeve, and the upper annular sealing block is matched with the lower annular sealing block.
A first annular supporting block is fixed on the top surface of the bottom plate of the rack at the inner side of the thrust tile, a plurality of limiting guide horizontal blocks are fixed on the top surface of the first annular supporting block, and the limiting guide horizontal blocks are inserted in inner annular grooves formed in the inner side walls of the corresponding thrust tiles.
The top surface of the bottom plate of the rack at the outer side of each thrust tile is connected with a vertical column in a threaded mode, the top end of each vertical column is inserted into a lower groove formed in the bottom surface of the outer side portion of the corresponding thrust tile in a sleeved mode, an outer hexagonal rotating portion is formed in the outer side wall of the middle of each vertical column, and the outer hexagonal rotating portion is pressed on the top surface of the bottom plate of the rack.
The invention has the following outstanding effects:
compared with the prior art, the rotary thrust disc can be directly connected with a power output shaft of the permanent magnet motor to realize rotation, is supported by the guide shoe and the thrust shoe, ensures normal rotation use of the thrust disc, and has the advantages of good sealing effect, stable operation and long service life.
Description of the drawings:
FIG. 1 is a schematic view of a partial structure of the present invention;
FIG. 2 is a schematic diagram of a partial top view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1;
fig. 4 is a partially enlarged view of another portion of fig. 1.
The specific implementation mode is as follows:
in the embodiment, as shown in fig. 1 to 4, an inner adjusting guide shoe type vertical mill thrust bearing device comprises a sliding rotor 10, a thrust disc 20 and a frame 30, wherein the thrust disc 20 is fixed on the sliding rotor 10, and a power output shaft 100 is inserted into a connecting shaft sleeve body 11 formed in the middle of the sliding rotor 10 and is fixed in the sliding rotor 10 through key connection;
the lower part of the connecting shaft sleeve body 11 is inserted and sleeved in the middle through hole 310 of the rack 30;
the bottom surface of the edge of the thrust disc 20 is pressed against a plurality of thrust pads 21, the top surface of the bottom plate at the outer side of the frame 30 is formed with a plurality of mounting grooves 31, the compression blocks 32 are inserted and sleeved in the mounting grooves 31, the bottom surfaces of the compression blocks 32 are pressed against the bottom surfaces of the mounting grooves 31, the middle part of the bottom surface of the thrust pad 21 is formed with a lower mounting groove 211, the supporting blocks 22 are inserted and sleeved in the lower mounting groove 211, the top surfaces of the supporting blocks 22 are pressed against the top surfaces of the lower mounting groove 211, and the bottom surfaces of the supporting blocks 22 are pressed against the top surfaces of the compression blocks 32; since the abrasion is mainly generated in the pressure-resistant blocks 32 and the supporting blocks 22 during the use, the strength of the pressure-resistant blocks 32 and the supporting blocks 22 is greater than that of the thrust pads 21 to improve the service life thereof in order to ensure the normal operation of the equipment.
An annular supporting block 33 is fixed on the top surface of the middle part of the bottom plate of the rack 30, an annular part 12 is formed on the outer side wall of the upper part of the sliding rotor 10, the annular part 12 is inserted in the annular supporting block 33, an adjusting stud 331 is screwed on a radial screw thread through hole formed on the side wall of the annular supporting block 33, the inner end of the adjusting stud 331 extends out of the inner side wall of the annular supporting block 33 and is formed with a side supporting block 332, a plurality of guide shoes 34 are arranged between the annular part 12 and the annular supporting block 33, the inner wall surfaces of the guide shoes 34 are tightly attached to the outer side wall of the annular part 12, the side supporting block 332 is inserted in a mounting groove 341 formed in the middle part of the outer side wall of the corresponding guide shoe 34, and the.
Further, the outer end of the adjusting stud 331 extends out of the outer side wall of the annular support block 33 and is fixed with a rotating part 333.
Further, a rotation dial 334 is fixed to the rotation unit 333.
Further, the inner end surface of the side support block 332 is a spherical surface, which is pressed against the inner end surface of the mounting groove 341.
Further, a plurality of upper limiting blocks 335 are fixed on the top surface of the annular supporting block 33, upper limiting protruding strips 336 are formed on the bottom surface of the upper limiting blocks 335, lower annular protruding strips 13 are formed on the top surface of the top plate of the rack 10 at the inner side of the annular supporting block 33, the upper limiting protruding strips 336 are inserted into upper annular grooves formed on the top surface of the corresponding guide shoe 34, and the lower annular protruding strips 13 are inserted into lower annular grooves formed on the bottom surface of the guide shoe 34.
Further, the bottom surface of the support block 22 is spherical and is pressed against the top surface of the pressure-resistant block 32. Alternatively, the bottom surface of the support block 22 may be formed with an elongated strip-like projection that presses against the top surface of the pressure resistant block 32.
Further, an upper annular groove 215 is formed at the middle of the top surface of the thrust shoe 21.
Furthermore, an outer sleeve 35 is fixed on the top surface of the outer side edge portion of the rack 30, the thrust disc 20 is inserted and sleeved in the upper portion of the outer sleeve 35, a middle through hole 310 is formed in the middle of the bottom plate of the rack 30, a first oil blocking cylinder 36 and a second oil blocking cylinder 37 are fixed on the top surface of the bottom plate of the rack 30 at the middle through hole 310, the second oil blocking cylinder 37 is inserted and sleeved in the first oil blocking cylinder 36, the top end of the first oil blocking cylinder 36 is higher than the height of the second oil blocking cylinder 37, an annular mounting groove 130 is formed between the bottom of the annular portion 12 and the outer side wall of the connecting shaft sleeve body 11 in a downward extending manner, the first oil blocking cylinder 36 and the second oil blocking cylinder 37 are inserted and sleeved in the annular mounting groove 130, an upper annular groove 131 is formed at the position, close to the annular portion 12, of the top surface of the annular mounting groove 130, and the upper portion of the first;
a first sealing annular block 361 is fixed on the side wall of the top of the first oil blocking cylinder 36, the first sealing annular block 361 is pressed on the inner side wall of the upper annular groove 131, a second sealing annular block 371 is fixed on the side wall of the upper part of the second oil blocking cylinder 37, and the second sealing annular block 371 is pressed on the outer side wall of the connecting shaft sleeve body 11;
an upper annular sealing block 24 is fixed on the top surface of the outer side edge portion of the thrust disc 20, a lower annular sealing block 351 is fixed on the top surface of the outer sleeve 35, and the upper annular sealing block 24 is matched with the lower annular sealing block 351 and is abutted against each other.
Further, a first annular supporting block 38 is fixed on the top surface of the bottom plate of the rack 30 at the inner side of the thrust pad 21, a plurality of limit guide horizontal blocks 381 are fixed on the top surface of the first annular supporting block 38, and the limit guide horizontal blocks 381 are inserted into inner annular grooves formed on the inner side wall of the corresponding thrust pad 21.
Further, a vertical column 39 is screwed on the top surface of the bottom plate of the rack 30 at the outer side of the thrust shoe 21, the top end of the vertical column 39 is inserted into a lower groove formed on the bottom surface of the outer side portion of the corresponding thrust shoe 21, an outer hexagonal rotating portion 391 is formed on the outer side wall of the middle portion of the vertical column 39, and the outer hexagonal rotating portion 391 is pressed against the top surface of the bottom plate of the rack 30.
The lead to on the lateral wall of outer cover 35 has a plurality of sides to refuel connector 1, and the shaping has the side oil inlet hole on the lateral wall of thrust tile 21, and the other end of side oil inlet hole communicates with each other with the fashioned oil outlet 219 of middle part top surface of thrust tile 21, and the inner expert of side refuel connector 1 connects the one end of filling oil pipe 2, and the other end of filling oil pipe 2 is linked together with the connector that leads to on the side oil inlet hole.
A plurality of main oil inlets 301 are formed in the outer side wall of the bottom plate of the rack 30, the other ends of the main oil inlets 301 are communicated with a vertical through hole formed in the top surface of the middle of the bottom plate of the rack 30, a vertical pipe 302 is connected to the top of the vertical through hole in a communicating mode, an arc-shaped oil inlet pipe 303 is connected to the top end of the vertical pipe 302 in a communicating mode, a plurality of bent oil spraying pipes 304 bent downwards are connected to the inner side wall of the arc-shaped oil inlet pipe 303 in a communicating mode, and the bent oil spraying pipes 304 are close to the.
A main oil outlet through hole 305 is formed in the outer side wall of the outer casing 35, and a main oil drain pipe 306 is connected to the outer side wall of the outer casing 35 at the main oil outlet through hole 305.
At least one oil return pipe 9 is communicated with the bottom plate of the frame 30 between the first oil baffle cylinder 36 and the second oil baffle cylinder 37.
This embodiment is when using, and its frame 30 is fixed on the motor mounting bracket, is fixed with permanent-magnet machine on the motor mounting bracket, and permanent-magnet machine's 100 tops of power output shaft plug bush are fixed in smooth rotor 10 in the fashioned connection axle sleeve body 11 in middle part of smooth rotor 10 and through the key-type connection, and the upper portion inside wall shaping of the middle part through-hole of connection axle sleeve body 11 has the holding ring groove, and the limit portion of clamp plate 8 presses in the holding ring groove, and clamp plate 8 passes through bolt fixed connection on power output shaft 100's top surface.
When the thrust disc is used, the thrust disc 20 is driven to rotate by the operation of the permanent magnet motor, meanwhile, the side oiling connector 1 is communicated with an external oil inlet pipe for oil inlet, the high-pressure oil inlet is realized, oil enters from the side oiling connector 1 and is finally sprayed out from an oil outlet hole 219 formed in the top surface of the middle part of the thrust disc 21 to jack the thrust disc 20, the oil flows into the upper annular groove 215, and a layer of oil film is formed between the top surface of the thrust disc 21 and the thrust disc 20, so that the abrasion is reduced; the main oil inlet hole 301 is also used for oil inlet through an external connecting oil pipe, so that oil is filled between the rack 30 and the thrust disc 20;
when the thrust disc 20 rotates, the upper annular sealing block 24 is matched with the lower annular sealing block 351 to realize relative movement of the two and ensure the sealing effect, and the first sealing annular block 361, the second sealing annular block 371, the upper annular sealing block 24 and the lower annular sealing block 351 are all labyrinth sealing structures, so that the sealing effect is ensured;
when the oil injection pipe is used, oil sprayed by the bent oil injection pipe 304 is located between the inner side wall of the guide shoe 34 and the outer side wall of the annular part 12, so that the abrasion of the guide shoe and the outer side wall is reduced;
when the oil return device is used, when oil is excessively added, the oil can permeate into a cavity on the bottom plate of the rack 30 between the first oil blocking cylinder 36 and the second oil blocking cylinder 37 from the upper end of the first oil blocking cylinder 36, and the oil at the position can be discharged and returned through the oil return pipe 9, so that the oil is prevented from overflowing.
In the embodiment, when the thrust bearing assembly is used, the adjusting stud 331 can be adjusted to move by rotating the rotating part 333, so that the distance between the inner side wall of the guide shoe 34 and the outer side wall of the annular part 12 is adjusted to meet the use requirement, and the vertical column 39 plays a role in limiting and preventing the thrust bearing 21 from rotating.
The sealing structure is good in sealing effect, simple in structure, good in effect, long in service life and greatly reduced in maintenance frequency.
Finally, the above embodiments are only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the scope of the present invention should be defined by the claims.
Claims (10)
1. The utility model provides an interior regulation guide shoe formula mill thrust bearing device, includes smooth rotor (10), thrust dish (20) and frame (30), its characterized in that: the thrust disc (20) is fixed on the sliding rotor (10), and the power output shaft (100) is inserted in a connecting shaft sleeve body (11) formed in the middle of the sliding rotor (10) and is fixed in the sliding rotor (10) through key connection;
the lower part of the connecting shaft sleeve body (11) is inserted and sleeved in a middle through hole (310) of the rack (30);
the bottom surface of the edge of the thrust disc (20) is pressed against a plurality of thrust pads (21), a plurality of mounting grooves (31) are formed on the top surface of the bottom plate at the outer side of the rack (30), the anti-pressing block (32) is inserted and sleeved in the mounting grooves (31), the bottom surface of the anti-pressing block (32) is pressed against the bottom surface of the mounting grooves (31), a lower mounting groove (211) is formed in the middle of the bottom surface of the thrust pad (21), the supporting block (22) is inserted and sleeved in the lower mounting groove (211), the top surface of the supporting block (22) is pressed against the top surface of the lower mounting groove (211), and the bottom surface of the supporting block (22) is pressed against the top surface of the anti-pressing block (32);
the middle top surface of the bottom plate of the rack (30) is fixed with an annular supporting block (33), the upper outer side wall of the sliding rotor (10) is formed with an annular part (12), the annular part (12) is inserted and sleeved in the annular supporting block (33), a radial screw joint through hole formed in the side wall of the annular supporting block (33) is screwed with an adjusting stud (331), the inner end of the adjusting stud (331) extends out of the inner side wall of the annular supporting block (33) and is formed with a side supporting block (332), a plurality of guide shoes (34) are arranged between the annular part (12) and the annular supporting block (33), the inner wall surface of each guide shoe (34) is tightly attached to the outer side wall of the annular part (12), the side supporting block (332) is inserted and sleeved in a mounting groove (341) formed in the middle part of the outer side wall of the corresponding guide shoe (34), and the inner end surface of each side supporting block (.
2. The thrust bearing device of an internally adjustable shoe type vertical mill according to claim 1, wherein: the outer end of the adjusting stud (331) extends out of the outer side wall of the annular supporting block (33) and is fixed with a rotating part (333).
3. The thrust bearing device of an internally adjustable shoe type vertical mill according to claim 2, wherein: a rotating dial (334) is fixed on the rotating part (333).
4. The thrust bearing device of an internally adjustable shoe type vertical mill according to claim 1, wherein: the inner end surface of the side support block (332) is a spherical surface which is pressed against the inner end surface of the mounting groove (341).
5. The thrust bearing device of an internally adjustable shoe type vertical mill according to claim 1, wherein: the top surface of the annular supporting block (33) is fixedly provided with a plurality of upper limiting blocks (335), the bottom surface of each upper limiting block (335) is formed with an upper limiting convex strip (336), the top surface of the top plate of the rack (10) at the inner side of the annular supporting block (33) is formed with a lower annular convex strip (13), the upper limiting convex strips (336) are inserted in upper annular grooves formed in the top surfaces of the corresponding guide tiles (34), and the lower annular convex strips (13) are inserted in lower annular grooves formed in the bottom surfaces of the guide tiles (34).
6. The thrust bearing device of an internally adjustable shoe type vertical mill according to claim 1, wherein: the bottom surface of the supporting block (22) is spherical and is pressed against the top surface of the pressure resisting block (32).
7. The thrust bearing device of an internally adjustable shoe type vertical mill according to claim 1, wherein: an upper annular groove (215) is formed in the middle of the top surface of the thrust pad (21).
8. The thrust bearing device of an internally adjustable shoe type vertical mill according to claim 1, wherein: an outer sleeve body (35) is fixed on the top surface of the outer side edge portion of the rack (30), the thrust disc (20) is inserted and sleeved in the upper portion of the outer sleeve body (35), a middle through hole (310) is formed in the middle of a bottom plate of the rack (30) at the middle through hole (310), a first oil blocking cylinder (36) and a second oil blocking cylinder (37) are fixed on the top surface of the bottom plate of the rack (30) and are inserted and sleeved in the first oil blocking cylinder (36), the top end of the first oil blocking cylinder (36) is higher than the height of the second oil blocking cylinder (37), an annular mounting groove (130) is formed between the bottom of the annular portion (12) and the outer side wall of the connecting shaft sleeve body (11) in a downward extending mode, the first oil blocking cylinder (36) and the second oil blocking cylinder (37) are inserted and sleeved in the annular mounting groove (130), an upper annular groove (131) is formed in the position, close to the annular portion (12), of the top surface of the annular mounting groove (, the upper part of the first oil blocking cylinder (36) is inserted and sleeved in the upper annular groove (131);
a first sealing annular block (361) is fixed on the side wall of the top of the first oil blocking cylinder (36), the first sealing annular block (361) is pressed against the inner side wall of the upper annular groove (131), a second sealing annular block (371) is fixed on the side wall of the upper part of the second oil blocking cylinder (37), and the second sealing annular block (371) is pressed against the outer side wall of the connecting shaft sleeve body (11);
an upper annular sealing block (24) is fixed on the top surface of the outer side edge of the thrust disc (20), a lower annular sealing block (351) is fixed on the top surface of the outer sleeve body (35), and the upper annular sealing block (24) is matched with the lower annular sealing block (351).
9. The thrust bearing device of an internally adjustable shoe type vertical mill according to claim 1, wherein: a first annular supporting block (38) is fixed on the top surface of the bottom plate of the rack (30) at the inner side of the thrust tile (21), a plurality of limiting guide horizontal blocks (381) are fixed on the top surface of the first annular supporting block (38), and the limiting guide horizontal blocks (381) are inserted in inner annular grooves formed in the inner side wall of the corresponding thrust tile (21).
10. The thrust bearing device of an internally adjustable shoe type vertical mill according to claim 1, wherein: the top surface of the bottom plate of the rack (30) at the outer side of each thrust tile (21) is connected with a vertical column (39) in a threaded mode, the top end of each vertical column (39) is inserted into a lower groove formed in the bottom surface of the outer side portion of the corresponding thrust tile (21) in a sleeved mode, an outer hexagonal rotating portion (391) is formed on the outer side wall of the middle of each vertical column (39), and the outer hexagonal rotating portion (391) is pressed against the top surface of the bottom plate of the rack (30).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010588009.4A CN111706610B (en) | 2020-06-24 | 2020-06-24 | Thrust bearing device of internal-adjustment guide bush type vertical mill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010588009.4A CN111706610B (en) | 2020-06-24 | 2020-06-24 | Thrust bearing device of internal-adjustment guide bush type vertical mill |
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| CN111706610A true CN111706610A (en) | 2020-09-25 |
| CN111706610B CN111706610B (en) | 2021-10-01 |
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| CN111706610B (en) | 2021-10-01 |
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