CN103775614A - Combined bearing bush device for large gear case - Google Patents
Combined bearing bush device for large gear case Download PDFInfo
- Publication number
- CN103775614A CN103775614A CN201110460955.1A CN201110460955A CN103775614A CN 103775614 A CN103775614 A CN 103775614A CN 201110460955 A CN201110460955 A CN 201110460955A CN 103775614 A CN103775614 A CN 103775614A
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- CN
- China
- Prior art keywords
- thrust
- bush
- watt
- lower axial
- shoe valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
Abstract
The invention discloses a combined bearing bush device for a large gear case. The bearing bush device is mounted between a base plate of the gear case and a thrust head of an output shaft of the gear case and comprises a gland, a radial thrust bush, a bearing bush seat, an upper radial thrust bush and a lower radial thrust bush. The radial thrust bush is sleeved on the outside of the cylinder portion of the thrust head and is fixed radially by the bearing bush seat, the bottom of the bearing bush seat is fixed on the base plate through bolts, and the gland pressing the radial thrust bush is fixedly connected with the top of the bearing bush seat. an upper axial thrust bush is arranged at the upper end of the disc portion of the thrust head and is fixed on the bearing bush seat, and the disc portion of the thrust head is pressed on the base plate through a lower axial thrust bush which is fixed on the base plate. The gland, the radial thrust bush, the bearing bush seat, the upper axial thrust bush and the lower axial thrust bush are in multi-block combined structures. The device has the advantages of being compact in structure, safe to use, convenient to mount and maintain, low in cost and the like.
Description
Technical field
The present invention relates to large gearbox, relate in particular to a kind of large gearbox combined bearing bush device that is applied to the field such as nuclear power water circulating cooling pump transmission device, hydroelectric power speedup box.
Background technique
Nuclear power water circulating cooling pump transmission device adopts vertical-type planetary gear transmission conventionally, motor is positioned at the top of whole equipment, in order to prevent the too high performance that affects motor and transmission device of water level, integral device short transverse is long, because gear-box bears water pump axial hydraulic thrust, the necessary design safety of gear box structure is reliable simultaneously.Conventionally gear-box supporting axle tile structure form has considerable influence to the safe handling of gear-box, conventional gearbox bearing shell adopts overall structure form, use field for large gearbox, integrally-built bearing shell is unreliable, once damaging must be by gear-box breakdown maintenance, be unfavorable for maintaining, maintenance time is long, cost is high, larger to the delay of normal work.
Summary of the invention
In order to solve deficiency of the prior art, the invention provides that one is suitable for more reliably, labour-saving large gearbox combined bearing bush device more, be particularly useful for that nuclear power water circulating cooling pump etc. is high-power, the occasion of high reliability request.
The technical solution adopted in the present invention is: a kind of large gearbox combined bearing bush device, bearing shell device is installed between the base plate of gear-box and the thrust collar of gearbox output shaft, described bearing shell device comprises gland, radial thrust watt, bush seat, upper end thrust watt and lower axial thrust bearing shoe valve, the cylinder portion overcoat radial thrust watt of thrust collar, radial thrust watt is radially fixed through bush seat, bush seat bottom is through being bolted on base plate, and bush seat top is fixedly connected with gland pressing radial thrust watt; The dish portion upper-end surface of thrust collar is provided with end thrust watt, and upper end thrust watt is fixed in bush seat, and the dish subordinate end face of thrust collar is pressed together on base plate through lower axial thrust bearing shoe valve, and lower axial thrust bearing shoe valve is fixed on base plate; Described gland, radial thrust watt, bush seat, upper end thrust watt, lower axial thrust bearing shoe valve are polylith fabricated structure.
Wherein, between described lower axial thrust bearing shoe valve and base plate, be provided with the base with adjustment block, base is fixed on base plate, and lower axial thrust bearing shoe valve is fixed on base, and base is by the lower axial thrust bearing shoe valve of adjustment block supporting.
Wherein, the lower end surface of the inner side surface of described radial thrust watt, upper end thrust watt and the upper-end surface of lower axial thrust bearing shoe valve are equipped with babbit layer.
Wherein, described lower axial thrust bearing shoe valve bottom is provided with high-pressure oil pipe joint.
Wherein, the adjacent peripheral of described polylith bush seat is fastenedly connected by bolt, locating stud.
Wherein, described base is polylith fabricated structure.
Bearing shell device of the present invention adopts the upper end thrust watt of polylith fabricated structure to carry respectively the thrust of water pump to output shaft with lower axial thrust bearing shoe valve, guarantee the high reliability usage requirement of gear-box, there is compact structure, use safety, convenient for installation and maintenance, low cost and other advantages.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of large gearbox combined bearing bush device of the present invention.
In figure: 1-casing; 2-base plate; 3-output shaft; 4-thrust collar; 41-thrust collar cylinder portion; 42-thrust cephalic disc portion; 5-bush seat; 6-gland; 7-radial thrust watt; The upper end thrust watt of 8-; Axial thrust bearing shoe valve under 9-; 10-high-pressure oil pipe joint; 11-adjustment block; 12-base.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Shown in Fig. 1, a kind of large gearbox combined bearing bush device comprises bush seat 5, gland 6, radial thrust watts 7, upper end thrust watts 8, lower axial thrust bearing shoe valve 9, high-pressure oil pipe joint 10, adjustment block 11 and base 12.The thrust collar 4 of gear-box 1 connects output shaft 3, the base plate 2 that output shaft 3 stretches out gear-box 1 connects water pump, the radial thrust of thrust collar cylinder portion 41 overcoat polylith fabricated structures watts 7, the radial thrust of polylith fabricated structure watts 7 is radially fixing through polylith fabricated structure bush seat 5, the adjacent peripheral of polylith bush seat 5 is fastenedly connected by bolt, locating stud, polylith bush seat 5 bottoms are through being bolted on base plate 2, and polylith bush seat 5 tops are fixedly connected with polylith fabricated structure gland 6 pressing polylith group radial thrusts watts 7; Thrust cephalic disc portion 42 upper-end surfaces are provided with the upper end thrust watts 8 of polylith fabricated structure, on polylith, end thrust watts 8 is separately fixed in polylith bush seat 5, between thrust cephalic disc portion 42 lower end surfaces and base plate 2, be provided with lower axial thrust bearing shoe valve 9 and the base 12 of polylith fabricated structure, under polylith, axially thrust bearing shoe valve 9 is pressed together on polylith base 12 through polylith adjustment block 11 respectively, polylith base 12 is fixed on base plate 2, and lower axial thrust bearing shoe valve 9 bottom ends are provided with the high-pressure oil pipe joint 10 of external high pressure oil; The lower end surface of the inner side surface of radial thrust watts 7, upper end thrust watts 8 and the upper-end surface of lower axial thrust bearing shoe valve 9 are equipped with babbit layer.
Further instruction: a kind of large gearbox combined bearing bush device, bearing shell device is installed between the base plate of gear-box and the thrust collar of gearbox output shaft, described bearing shell device comprises gland, radial thrust watt, bush seat, upper end thrust watt and lower axial thrust bearing shoe valve, the cylinder portion overcoat radial thrust watt of thrust collar, radial thrust watt is radially fixed through bush seat, bush seat bottom is through being bolted on base plate, and bush seat top is fixedly connected with gland pressing radial thrust watt; The dish portion upper-end surface of thrust collar is provided with end thrust watt, and upper end thrust watt is fixed in bush seat, and the dish subordinate end face of thrust collar is pressed together on base plate through lower axial thrust bearing shoe valve, and lower axial thrust bearing shoe valve is fixed on base plate; Described gland, radial thrust watt, bush seat, upper end thrust watt, lower axial thrust bearing shoe valve are polylith fabricated structure.
Wherein, between lower axial thrust bearing shoe valve and base plate, be provided with the base with adjustment block, base is fixed on base plate, and lower axial thrust bearing shoe valve is fixed on base, and base is by the lower axial thrust bearing shoe valve of adjustment block supporting.When bearing shell device is installed, adjustment block is reserved reconditioning surplus, is convenient to adjust the processing of bearing shell device, alignment error, guarantees thrust collar and bearing shell device axially locating.
Wherein, the lower end surface of the inner side surface of radial thrust watt, upper end thrust watt and the upper-end surface of lower axial thrust bearing shoe valve are equipped with babbit layer.Babbit layer has anti-attrition characteristic, is conducive to carrying.
Wherein, lower axial thrust bearing shoe valve bottom is provided with high-pressure oil pipe joint.In the time of maintenance, use high pressure oil by lower axial thrust bearing shoe valve jack-up, is extracted the lower axial thrust bearing shoe valve of required replacing through high pressure oil joint out, easy to maintenance.
Wherein, the adjacent peripheral of polylith bush seat is fastenedly connected by bolt, locating stud.
Wherein, base is polylith fabricated structure.
The outer water pump of gearbox output shaft, in the time that water pump is normally worked, output shaft is subject to downward hydraulic thrust hydraulic thrust to be delivered to lower axial thrust bearing shoe valve by the dish portion of thrust collar, is born successively through adjustment block, base, base plate by gear-box; In the time that water pump is shut down or reverse, output shaft is subject to hydraulic thrust upwards, and hydraulic thrust is delivered to upper end thrust watt by the dish portion of thrust collar, is born successively through bush seat, base plate by gear-box.
Bearing shell device of the present invention adopts the upper end thrust watt of polylith fabricated structure to carry respectively the thrust of water pump to output shaft with lower axial thrust bearing shoe valve, guarantee the high reliability usage requirement of gear-box, there is compact structure, use safety, convenient for installation and maintenance, low cost and other advantages.
Finally it should be noted that: above embodiment is only in order to illustrate the present invention and unrestricted technological scheme described in the invention; Therefore, although this specification has been described in detail the present invention with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can modify or be equal to replacement the present invention; And all do not depart from technological scheme and the improvement thereof of the spirit and scope of the present invention, it all should be encompassed in claim scope of the present invention.
Claims (6)
1. a large gearbox combined bearing bush device, bearing shell device is installed between the base plate of gear-box and the thrust collar of gearbox output shaft, it is characterized in that: described bearing shell device comprises gland, radial thrust watt, bush seat, upper end thrust watt and lower axial thrust bearing shoe valve, the cylinder portion overcoat radial thrust watt of thrust collar, radial thrust watt is radially fixed through bush seat, bush seat bottom is through being bolted on base plate, and bush seat top is fixedly connected with gland pressing radial thrust watt; The dish portion upper-end surface of thrust collar is provided with end thrust watt, and upper end thrust watt is fixed in bush seat, and the dish subordinate end face of thrust collar is pressed together on base plate through lower axial thrust bearing shoe valve, and lower axial thrust bearing shoe valve is fixed on base plate; Described gland, radial thrust watt, bush seat, upper end thrust watt, lower axial thrust bearing shoe valve are polylith fabricated structure.
2. a kind of large gearbox combined bearing bush device according to claim 1, it is characterized in that: between described lower axial thrust bearing shoe valve and base plate, be provided with the base with adjustment block, base is fixed on base plate, and lower axial thrust bearing shoe valve is fixed on base, and base is by the lower axial thrust bearing shoe valve of adjustment block supporting.
3. a kind of large gearbox combined bearing bush device according to claim 1, is characterized in that: the lower end surface of the inner side surface of described radial thrust watt, upper end thrust watt and the upper-end surface of lower axial thrust bearing shoe valve are equipped with babbit layer.
4. according to a kind of large gearbox combined bearing bush device described in claim 1 or 2 or 3, it is characterized in that: described lower axial thrust bearing shoe valve bottom is provided with high-pressure oil pipe joint.
5. a kind of large gearbox combined bearing bush device according to claim 2, is characterized in that: the adjacent peripheral of described polylith bush seat is fastenedly connected by bolt, locating stud.
6. a kind of large gearbox combined bearing bush device according to claim 2, is characterized in that: described base is polylith fabricated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110460955.1A CN103775614A (en) | 2011-12-31 | 2011-12-31 | Combined bearing bush device for large gear case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110460955.1A CN103775614A (en) | 2011-12-31 | 2011-12-31 | Combined bearing bush device for large gear case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103775614A true CN103775614A (en) | 2014-05-07 |
Family
ID=50568199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110460955.1A Pending CN103775614A (en) | 2011-12-31 | 2011-12-31 | Combined bearing bush device for large gear case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103775614A (en) |
-
2011
- 2011-12-31 CN CN201110460955.1A patent/CN103775614A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140507 |