CN110948039A - Novel flywheel mechanism for 1300-ton cold shears - Google Patents
Novel flywheel mechanism for 1300-ton cold shears Download PDFInfo
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- CN110948039A CN110948039A CN201911332214.8A CN201911332214A CN110948039A CN 110948039 A CN110948039 A CN 110948039A CN 201911332214 A CN201911332214 A CN 201911332214A CN 110948039 A CN110948039 A CN 110948039A
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- 238000010008 shearing Methods 0.000 claims abstract description 39
- 125000006850 spacer group Chemical group 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims description 43
- 239000003921 oil Substances 0.000 claims description 33
- 238000005461 lubrication Methods 0.000 claims description 10
- 239000010687 lubricating oil Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D25/00—Machines or arrangements for shearing stock while the latter is travelling otherwise than in the direction of the cut
- B23D25/02—Flying shearing machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/30—Flywheels
- F16F15/315—Flywheels characterised by their supporting arrangement, e.g. mountings, cages, securing inertia member to shaft
- F16F15/3153—Securing inertia members to the shafts
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/30—Flywheels
- F16F15/315—Flywheels characterised by their supporting arrangement, e.g. mountings, cages, securing inertia member to shaft
- F16F15/3156—Arrangement of the bearings
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
- B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Support Of The Bearing (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a 1300-ton cold-shearing new-type flywheel mechanism which comprises a cold-shearing flywheel mechanism, a clutch and an internal brake, wherein the clutch is fixed at the right end of the cold-shearing flywheel mechanism, the internal brake is fixed at the left end of the cold-shearing flywheel mechanism, a high-speed gear shaft is installed inside the cold-shearing flywheel mechanism, the right end of the high-speed gear shaft is connected with a first self-aligning roller bearing through a first locking nut, a first flange is arranged below the first locking nut, a second flange is fixed at the right end of the first flange, a throwing oil ring is arranged above the right side of the second flange, a cylindrical roller bearing is fixed at the right side of the throwing oil ring, and a spacer sleeve is fixed at the right side of the cylindrical roller bearing. The 1300-ton cold shear new-form flywheel mechanism modifies the size of a high-speed gear shaft, so that the strength of the high-speed gear shaft is higher, and meanwhile, a flywheel supporting sleeve is added, so that the rotary support of a flywheel main body is more stable, and the equivalent stress is reduced to 13.02MPa from the original maximum 49.56 MPa.
Description
Technical Field
The invention relates to the technical field of 1300-ton reciprocating cold shears, in particular to a novel flywheel mechanism of 1300-ton cold shears.
Background
In the production process of the bars, high-strength deformed steel bars and special steel occupy a large proportion, meanwhile, in order to meet the high productivity of enterprises, domestic and international markets put forward high requirements on the capacity of a shearing machine after a cooling bed, small bars in the special steel need large shearing force due to high deformation resistance, so that the shearing force of the cold shearing machine needs to be large, the shearing of the small bars in the special steel is met, the shearing rhythm of the cold shearing machine is fast, and the requirement of high productivity is met;
therefore, 1300T cold shears come into force, 1300T cold shears are the cold shears with the maximum shearing capacity in the domestic bar production line at present, the cold shears realize shearing through the reciprocating motion of the upper shearing blade, the row of bars on the track are cold-cut into the fixed length, the key part for realizing shearing through the cold shears is a flywheel, a motor transmits energy through a belt, the flywheel stores energy through rotational inertia, the energy in the flywheel is transmitted to the shearing blade through a clutch in the shearing process to realize shearing, and the structure of the flywheel plays a vital role in the actual use and maintenance process of the cold shears;
1. the flywheel bearing needs to be oiled, checked and maintained regularly, because the flywheel bearing is limited to different manufacturers with different maintenance periods and levels, the oiling period and dosage cannot be guaranteed, the judgment on the running condition of the bearing is unclear, the damage condition of the flywheel bearing often happens, particularly a deep groove ball bearing, the damage frequency of the deep groove ball bearing is high, the shortest service life is only 15 days, once the flywheel bearing is damaged, the field maintenance needs to be carried out within at least one shift of time, and the longer time is consumed;
2. the high-speed shaft self-aligning ball bearing bears larger impact load during shearing, particularly shearing special steel types and overload shearing, and the high-speed shaft bearing is subjected to reciprocating impact and vibration due to the unbalance of a flywheel, so that the high-speed shaft bearing is damaged;
therefore, a 1300-ton cold shear new-type flywheel mechanism is provided to well solve the problems.
Disclosure of Invention
The invention aims to provide a novel flywheel mechanism of a 1300-ton cold shear, which is used for solving the problems that the traditional flywheel mechanism in the market is inconvenient to oil, inspect and maintain and easy to damage in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a1300-ton cold-shearing new-type flywheel mechanism comprises a cold-shearing flywheel mechanism, a clutch and an internal brake, wherein the clutch is fixed at the right end of the cold-shearing flywheel mechanism, the internal brake is fixed at the left end of the cold-shearing flywheel mechanism, a high-speed gear shaft is installed inside the cold-shearing flywheel mechanism, the right end of the high-speed gear shaft is connected with a first self-aligning roller bearing through a first locking nut, a first flange is arranged below the first locking nut, a second flange is fixed at the right end of the first flange, a throwing oil ring is arranged above the right side of the second flange, a cylindrical roller bearing is fixed at the right side of the throwing oil ring, a spacer sleeve is fixed at the right side of the cylindrical roller bearing, a deep groove ball bearing is fixed at the right side of the spacer sleeve, the right side of the deep groove ball bearing is connected with a first lip-shaped sealing ring through a second locking nut, a third flange is arranged at the right side of the second locking, and the top of third flange is fixed with second self-aligning roller bearing to the spacer ring is installed on second self-aligning roller bearing's right side, the outside of spacer ring is fixed with O type circle, second self-aligning roller bearing's the outside is fixed with flywheel supporting sleeve, and flywheel supporting sleeve's the outside is fixed with the spacer sleeve to the flywheel main part is installed in the outside of spacer sleeve, the left end outside of flywheel supporting sleeve is fixed with the lip shape sealing washer of second.
Preferably, the diameter of the first self-aligning roller bearing is 260mm, and the first self-aligning roller bearing and the cold shear flywheel mechanism form a dismounting structure through a first locking nut.
Preferably, the oil throwing ring forms a disassembly structure with the first flange through the second flange, and the lowest point of the oil throwing ring is lower than that of the cylindrical roller bearing.
Preferably, the inner diameter of the first lip-shaped sealing ring is smaller than that of the second lip-shaped sealing ring, and the first lip-shaped sealing ring and the second lip-shaped sealing ring are symmetrically arranged about the vertical central line of the flywheel supporting sleeve.
Preferably, the length of the flywheel supporting sleeve is greater than the distance between the first locking nut and the second self-aligning roller bearing, and the outer diameter of the flywheel supporting sleeve is greater than the inner diameter of the spacer bush.
Compared with the prior art, the invention has the beneficial effects that: the 1300-ton cold shear new-form flywheel mechanism;
(1) the technology modifies the size of the high-speed gear shaft, so that the strength of the high-speed gear shaft is higher, and meanwhile, the flywheel supporting sleeve is added, so that the rotary support of the flywheel main body is more stable, and the equivalent stress is reduced from the original maximum 49.56Mpa to the maximum 13.02 Mpa;
(2) the first self-aligning roller bearing and the second self-aligning roller bearing are adjusted to 24152 from 23248, the static load is improved by about 18 percent, meanwhile, the bearing mode of the first self-aligning roller bearing and the second self-aligning roller bearing is changed due to the adoption of a sleeve structure, and the comprehensive theoretical service life of the bearings is prolonged to about 2 times or more;
(3) the cylindrical roller bearing is adjusted to NU1068 from NU1044, the dynamic load is increased to about 2.2 times, the deep groove ball bearing is adjusted to 6068 from 6044, the dynamic load is increased to about 1.7 times, meanwhile, due to the change of a lubricating mode, the lubricating and cooling effects are better, and the comprehensive service life of the bearing is greatly prolonged;
(4) the rightmost end of the high-speed gear shaft is provided with a small-size first self-aligning roller bearing, so that the transmission of shearing force is assisted, the vibration caused by deflection and the like is effectively prevented, and the lip seal and the mechanical seal are designed in a combined manner, so that the risk of oil leakage is reduced; the change of the lubrication form is changed from the original manual regular dry oil lubrication into automatic thin oil lubrication, the lubrication and cooling effects are better, and the labor cost and accidents caused by human factors are reduced.
Drawings
FIG. 1 is a schematic perspective view of a flywheel mechanism of the cold shear of the present invention;
FIG. 2 is a schematic main sectional view of the flywheel body according to the present invention;
FIG. 3 is a schematic view of the lubricating structure of the cylindrical roller bearing and the second self-aligning roller bearing according to the present invention;
FIG. 4 is a schematic view of a second lip seal according to the present invention;
FIG. 5 is a schematic view of an O-ring according to the present invention.
In the figure: 1. a cold shear flywheel mechanism; 2. a clutch; 3. contracting brake; 4. a high-speed gear shaft; 5. a first self-aligning roller bearing; 6. a first lock nut; 7. a first flange; 8. a second flange; 9. an oil throwing ring; 10. a cylindrical roller bearing; 11. a deep groove ball bearing; 12. a second lock nut; 13. a third flange; 14. a second self-aligning roller bearing; 15. a spacer ring; 16. an O-shaped ring; 17. a first lip seal; 18. a flywheel support sleeve; 19. a spacer sleeve; 20. a flywheel main body; 21. a second lip seal.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a1300-ton cold-shearing new-type flywheel mechanism comprises a cold-shearing flywheel mechanism 1, a clutch 2, an internal contracting brake 3, a high-speed gear shaft 4, a first self-aligning roller bearing 5, a first locking nut 6, a first flange 7, a second flange 8, an oil throwing ring 9, a cylindrical roller bearing 10, a deep groove ball bearing 11, a second locking nut 12, a third flange 13, a second self-aligning roller bearing 14, a spacer ring 15, an O-shaped ring 16, a first lip-shaped sealing ring 17, a flywheel supporting sleeve 18, a spacer sleeve 19, a flywheel main body 20 and a second lip-shaped sealing ring 21, wherein the clutch 2 is fixed at the right end of the cold-shearing flywheel mechanism 1, the internal contracting brake 3 is fixed at the left end of the cold-shearing flywheel mechanism 1, the high-speed gear shaft 4 is installed inside the cold-shearing flywheel mechanism 1, the right end of the high-speed gear shaft 4 is connected with the first self-aligning roller bearing 5 through the first locking nut 6, and the first flange 7 is arranged below the first locking, a second flange 8 is fixed at the right end of the first flange 7, a flinger 9 is arranged above the right side of the second flange 8, a cylindrical roller bearing 10 is fixed at the right side of the flinger 9, a spacer 19 is fixed at the right side of the cylindrical roller bearing 10, a deep groove ball bearing 11 is fixed at the right side of the spacer 19, the right side of the deep groove ball bearing 11 is connected with a first lip-shaped sealing ring 17 through a second locking nut 12, a third flange 13 is arranged at the right side of the second locking nut 12, a second self-aligning roller bearing 14 is fixed above the third flange 13, a spacer ring 15 is installed at the right side of the second self-aligning roller bearing 14, an O-shaped ring 16 is fixed at the outer side of the spacer ring 15, a flywheel supporting sleeve 18 is fixed at the outer side of the second self-aligning bearing 14, the spacer 19 is fixed at the outer side of the flywheel supporting sleeve 18, and a flywheel main body 20 is installed at the outer side of the spacer, a second lip-shaped sealing ring 21 is fixed on the outer side of the left end of the flywheel supporting sleeve 18;
the diameter of the first self-aligning roller bearing 5 is 260mm, and the first self-aligning roller bearing 5 and the cold shear flywheel mechanism 1 form a dismounting structure through the first locking nut 6, so that the first self-aligning roller bearing 5 improves the stability of the whole device;
the oil thrower ring 9 forms a dismounting structure with the first flange 7 through the second flange 8, and the lowest point of the oil thrower ring 9 is lower than the lowest point of the cylindrical roller bearing 10, so that the oil thrower ring 9 can well dredge the lubricating oil;
the inner diameter of the first lip-shaped sealing ring 17 is smaller than that of the second lip-shaped sealing ring 21, and the first lip-shaped sealing ring 17 and the second lip-shaped sealing ring 21 are symmetrically arranged about the vertical central line of the flywheel supporting sleeve 18, so that the first lip-shaped sealing ring 17 and the second lip-shaped sealing ring 21 are matched with each other to improve the sealing effect;
the length of the flywheel supporting sleeve 18 is larger than the distance between the first locking nut 6 and the second self-aligning roller bearing 14, and the outer diameter of the flywheel supporting sleeve 18 is larger than the inner diameter of the spacer 19, so that the flywheel main body 20 is well supported by the flywheel supporting sleeve 18.
The working principle is as follows: when the 1300-ton cold shear new-type flywheel mechanism is used, firstly, the cold shear flywheel mechanism 1 is hung on one side of a box body, transmission is carried out through a motor and a belt, as shown in figure 1, in the working process, the clutch 2 works to enable the rotational inertia of the flywheel main body 20 to be transmitted to the high-speed gear shaft 4 and further to be transmitted to a shear blade to realize shearing, when the shearing is finished and the blade returns to the highest position, the clutch 2 is loosened to enable the flywheel main body 20 to idle, the band-type brake 3 works to enable the high-speed gear shaft 4 to be connected with the box body to stop rotating, the shearing pause is realized, in the using process of the whole cold shear flywheel mechanism 1, the diameter of the first self-aligning roller bearing 5 is changed into 260mm, the first self-aligning roller bearing 5 is locked and fixed through the first locking nut 6, the high-speed gear shaft 4 is adjusted to be 24152 of the first self-aligning, meanwhile, the first flange 7, the second flange 8 and the third flange 13 are arranged, so that the mounting stability of the whole device is improved;
then, as shown in fig. 2-3, through the arrangement of the O-ring 16, the first lip-shaped seal ring 17 and the second lip-shaped seal ring 21 perform secondary sealing, the penetrated lubricating oil is discharged into the oil return hole by mechanical sealing, the outer side of the flywheel main body 20 is sealed by the third flange 13, lip-shaped sealing is performed, and the penetrated lubricating oil is discharged into the oil return hole by mechanical sealing, so that the whole device is mutually matched through a double-sealing structure of lip-shaped sealing and mechanical sealing, as shown in fig. 4-5, the sealing performance of the whole device is improved, meanwhile, the cylindrical roller bearing 10 is adjusted from NU1044 to the original NU1068, the deep groove ball bearing 11 is adjusted from 6044 to the original 6068, the middle is matched with a spacer 19 with a new size, and is locked by the second locking nut 12, the oil thrower ring 9 with a new structure, the oil throwing ring 9 blocks large-flow oil return, so that the later-stage lubrication work is facilitated;
then, when lubrication operation is required, as shown in fig. 3, thin oil is introduced through the cold shear box, flows into the second self-aligning roller bearing 14 through the flywheel supporting sleeve 18, flows through the deep groove ball bearing 11 and the cylindrical roller bearing 10, flows back to the box through the box body hole through the oil throwing ring 9, and thin oil lubrication circulation of the first self-aligning roller bearing 5, the cylindrical roller bearing 10, the deep groove ball bearing 11 and the second self-aligning roller bearing 14 in the flywheel main body 20 is realized, and the content not described in detail in the present specification belongs to the prior art known to those skilled in the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (5)
1. The utility model provides a 1300 tons of cold shears new form flywheel mechanism, includes cold shears flywheel mechanism (1), clutch (2) and band-type brake (3), its characterized in that: the right end of the cold shear flywheel mechanism (1) is fixed with a clutch (2), the left end of the cold shear flywheel mechanism (1) is fixed with a brake (3), the inside of the cold shear flywheel mechanism (1) is provided with a high-speed gear shaft (4), the right end of the high-speed gear shaft (4) is connected with a first self-aligning roller bearing (5) through a first locking nut (6), a first flange (7) is arranged below the first locking nut (6), a second flange (8) is fixed at the right end of the first flange (7), a throwing oil ring (9) is arranged above the right side of the second flange (8), a cylindrical roller bearing (10) is fixed at the right side of the throwing oil ring (9), a spacer sleeve (19) is fixed at the right side of the cylindrical roller bearing (10), a deep groove ball bearing (11) is fixed at the right side of the spacer sleeve (19), and the right side of the deep groove ball bearing (11) is connected with a first lip-shaped sealing ring (17) through a second locking nut (12), a third flange (13) is arranged on the right side of the second locking nut (12), a second self-aligning roller bearing (14) is fixed above the third flange (13), a spacer ring (15) is arranged on the right side of the second self-aligning roller bearing (14), an O-shaped ring (16) is fixed on the outer side of the spacer ring (15), a flywheel supporting sleeve (18) is fixed on the outer side of the second self-aligning roller bearing (14), a spacer bush (19) is fixed on the outer side of the flywheel supporting sleeve (18), a flywheel main body (20) is arranged on the outer side of the spacer bush (19), a second lip-shaped sealing ring (21) is fixed on the outer side of the left end of the flywheel supporting sleeve (18), the length of the flywheel supporting sleeve (18) is larger than the distance between the first locking nut (6) and the second self-aligning roller bearing (14), and the outer diameter of the flywheel supporting sleeve (18) is larger than the inner diameter of the spacer bush (19).
2. A 1300 ton cold shear new form flywheel mechanism according to claim 1, characterized by: the diameter of the first self-aligning roller bearing (5) is 260mm, and the first self-aligning roller bearing (5) and the cold shear flywheel mechanism (1) form a dismounting structure through a first locking nut (6).
3. A 1300 ton cold shear new form flywheel mechanism according to claim 1, characterized by: the oil throwing ring (9) and the first flange (7) form a dismounting structure through the second flange (8), and the lowest point of the oil throwing ring (9) is lower than the lowest point of the cylindrical roller bearing (10).
4. A 1300 ton cold shear new form flywheel mechanism according to claim 1, characterized by: the inner diameter of the first lip-shaped sealing ring (17) is smaller than that of the second lip-shaped sealing ring (21), and the first lip-shaped sealing ring (17) and the second lip-shaped sealing ring (21) are symmetrically arranged about the vertical central line of the flywheel supporting sleeve (18).
5. A 1300 ton cold shear new form flywheel mechanism according to claim 1, characterized by: the working principle of the 1300-ton cold shear new-form flywheel mechanism is as follows: when the 1300-ton cold shear new-type flywheel mechanism is used, firstly, the cold shear flywheel mechanism (1) is hung on one side of a box body, a motor and a belt are used for transmission, the clutch (2) works in work to enable the rotational inertia of a flywheel main body (20) to be transmitted to a high-speed gear shaft (4) and further to be transmitted to a shear blade to realize shearing, when the shearing is finished and the blade returns to the highest position, the clutch (2) is loosened to enable the flywheel main body (20) to idle, the band-type brake (3) works to enable the high-speed gear shaft (4) to be connected with the box body to stop rotating so as to realize shearing pause, the diameter of a first self-aligning roller bearing (5) is changed into 260mm in the using process of the whole cold shear flywheel mechanism (1), the first self-aligning roller bearing (5) is locked and fixed through a first locking nut (6), and the high-speed gear shaft (4) is adjusted into the self-aligning 24152 of the first self, the stability of the high-speed gear shaft (4) is further improved, and meanwhile, the stability of the whole device is improved through the arrangement of the first flange (7), the second flange (8) and the third flange (13);
then, through the arrangement of an O-shaped ring (16), a first lip-shaped sealing ring (17) and a second lip-shaped sealing ring (21), the first lip-shaped sealing ring (17) and the second lip-shaped sealing ring (21) carry out secondary sealing, the penetrated lubricating oil is discharged into an oil return hole through mechanical sealing, the outer side of the flywheel main body (20) is sealed through a third flange (13), lip-shaped sealing is carried out, the penetrated lubricating oil is discharged into the oil return hole through the mechanical sealing, so that the whole device is mutually matched through a double-sealing structure of the lip-shaped sealing and the mechanical sealing, the sealing performance of the whole device is improved, meanwhile, a cylindrical roller bearing (10) is adjusted to be an original NU1068 from NU1044, a deep groove ball bearing (11) is adjusted to be an original 6068 from 6044, a spacer bush (19) with a new size is matched in the middle, locking is carried out through a second locking nut (12), a parabolic oil ring (9) with a new structure, the oil throwing ring (9) blocks large-flow oil return, so that the later-stage lubrication work is facilitated;
then, when lubrication operation is needed, thin oil is introduced through the cold shear box body, flows into the second self-aligning roller bearing (14) through the flywheel supporting sleeve (18), flows through the deep groove ball bearing (11) and the cylindrical roller bearing (10), flows back to the box body through the box body hole through the oil throwing ring (9), and thin oil lubrication circulation of the first self-aligning roller bearing (5), the cylindrical roller bearing (10), the deep groove ball bearing (11) and the second self-aligning roller bearing (14) in the flywheel main body (20) is achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911332214.8A CN110948039A (en) | 2019-12-21 | 2019-12-21 | Novel flywheel mechanism for 1300-ton cold shears |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911332214.8A CN110948039A (en) | 2019-12-21 | 2019-12-21 | Novel flywheel mechanism for 1300-ton cold shears |
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| CN110948039A true CN110948039A (en) | 2020-04-03 |
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| SU725825A1 (en) * | 1977-10-10 | 1980-04-05 | Предприятие П/Я А-7697 | Drum-type flying shears |
| CN1309593A (en) * | 1998-07-24 | 2001-08-22 | Sms舒路曼-斯玛公司 | Method and device for cutting to length strips or sheets in rolling or transport line |
| JP2003113926A (en) * | 2001-10-04 | 2003-04-18 | Sumitomo Heavy Ind Ltd | Reduction gear subject to thrust load and reduction gear series |
| KR20040014787A (en) * | 2002-08-12 | 2004-02-18 | 주식회사 포스코 | A Flying Shear capable of changing a Knife |
| CN2683293Y (en) * | 2003-09-30 | 2005-03-09 | 一重集团大连设计研究院 | Crank flying end shear |
| CN201997793U (en) * | 2011-01-24 | 2011-10-05 | 中冶赛迪工程技术股份有限公司 | Flywheel device for flying shear |
| JP2012096351A (en) * | 2012-01-11 | 2012-05-24 | Daido Steel Co Ltd | Flying shear, and flying shearing method |
| CN202438735U (en) * | 2012-02-29 | 2012-09-19 | 周福尧 | Improved gantry type big-stick flying shear |
| CN209503088U (en) * | 2018-11-30 | 2019-10-18 | 达涅利冶金设备（中国）有限公司 | A kind of start stop mode combination flying shear blade clearance adjustment mechanism |
| CN211387127U (en) * | 2019-12-21 | 2020-09-01 | 达涅利冶金设备（中国）有限公司 | Novel flywheel mechanism for 1300-ton cold shears |
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