CN213017310U - Turbine bearing box inner oil baffle with adjusting function and assembling structure thereof - Google Patents

Abstract

The utility model relates to a turbine bearing incasement oil catch technical field specifically is a turbine bearing incasement oil catch and assembly structure with adjustment function, aims at solving the technical problem in the background art. The following technical scheme is adopted: an oil baffle in a turbine bearing box with an adjusting function comprises an L-shaped adjusting fixing block, a vertical adjusting bolt and a horizontal adjusting bolt, wherein a gap in the vertical direction between an inner hole of a copper tooth of the inner oil baffle and the surface of the diameter of a rotor shaft is adjusted through the vertical adjusting bolt, and a gap in the horizontal direction between the inner hole of the copper tooth of the inner oil baffle and the surface of the diameter of the rotor shaft is realized through the horizontal adjusting bolt; the utility model provides an assembly structure, includes above-mentioned interior oil catch, still includes the bearing box, adds the supporting shoe on the bearing box, adds anticreep adjusting bolt and relevant structure on the interior oil catch, can effectively prevent that interior oil catch from droing, has improved the stability of structure.

Description

Turbine bearing box inner oil baffle with adjusting function and assembling structure thereof

Technical Field

The utility model relates to a turbine bearing incasement oil catch technical field specifically is a turbine bearing incasement oil catch and assembly structure with adjustment function.

Background

The oil shield in the bearing box of the steam turbine is a component which is arranged at the end part of the bearing box of the steam turbine and used for shielding oil, and consists of an upper half ring and a lower half ring, two rectangular hangers are fixedly connected to two sides of the upper surface of the lower half ring, two steps are arranged on the bearing box corresponding to the two hangers, the lower half ring is hung on the steps through the two hangers to realize support, and the upper half ring is placed above the lower half ring. This structure has two disadvantages: firstly, the clearance between the inner hole of the copper gear of the inner oil baffle and the surface of the shaft diameter of the rotor is realized by grinding or adding and subtracting a gasket according to the thickness of a lug at the middle section of the lower oil baffle during installation and adjustment, repeated adjustment is needed, and the method is labor-consuming, time-consuming and difficult; secondly, the hangers bear the whole weight of the inner oil baffle, and the hangers are easy to fatigue and break after being stressed greatly or used for a long time, so that the oil baffle falls off and the shaft diameter is rubbed and abraded to bring safety hidden troubles.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving the interior oil catch adjustment of current steam turbine bearing box and take a lot of work and time, the great technical problem of the degree of difficulty, adopt following technical scheme:

an oil baffle with an adjusting function in a turbine bearing box comprises an upper half ring and a lower half ring, wherein horizontally arranged mounting steps are arranged on two radial sides of the top of the lower half ring; still include the adjustment fixed block of two L types of constituteing by diaphragm and riser, the diaphragm of two adjustment fixed blocks is laminated the ladder transverse plane of two installation steps respectively and is fixed through fixing bolt, the riser of adjustment fixed block and partial diaphragm radially outwards extend in interior oil fender, the part of the overhanging in interior oil fender of diaphragm is twisted downwards and is equipped with vertical adjusting bolt, outwards twist on the riser and be equipped with horizontal adjusting bolt, vertical adjusting bolt and horizontal adjusting bolt run through diaphragm and riser respectively and all dispose lock nut.

The utility model has the advantages that: the utility model discloses a turbine bearing box inner oil fender with adjustment function, be provided with the adjustment fixed block of L type, vertical adjusting bolt and horizontal adjustment bolt, through the clearance of the vertical direction between vertical adjusting bolt regulation inner oil fender copper tooth hole and the rotor shaft footpath surface, through the clearance of the horizontal direction between horizontal adjustment bolt realization inner oil fender copper tooth hole and the rotor shaft footpath surface, thereby realize the clearance adjustment between inner oil fender copper tooth hole and the rotor shaft footpath surface, for the current adjustment mode of grinding or adding and subtracting the gasket through hangers thickness, time saving and labor saving, the adjustment precision is high, the dependable performance, it is very convenient to install and overhaul at the production site.

The utility model discloses it takes time and time to take a lot of work, the degree of difficulty is great to aim at solving the adjustment of the interior oil blanket of current steam turbine bearing box, and the technical problem that interior oil blanket easily drops adopts following technical scheme:

an assembly structure comprises a bearing box, wherein two supporting steps which are distributed in 180 degrees and are horizontally arranged are arranged at the edge of an opening of the bearing box; the tail parts of the two vertical adjusting bolts are respectively abutted against the step transverse surface of the supporting step, and the tail parts of the two horizontal adjusting bolts are respectively abutted against the step vertical surface of the supporting step; two anti-falling fixed blocks which are symmetrically distributed about a vertical plane are fixed on the axial end face of the lower half ring, an anti-falling adjusting bolt is screwed outwards along the radial direction of the inner oil baffle on each anti-falling fixed block, each anti-falling adjusting bolt is provided with a locking nut, two supporting blocks which are arranged corresponding to the anti-falling adjusting bolts are fixed on the bearing box, the two anti-falling adjusting bolts form an included angle of 60-120 degrees, and the tail parts of the two anti-falling adjusting bolts are respectively abutted to the two supporting blocks.

The utility model has the advantages that: the utility model discloses an assembly structure of interior oil fender and bearing box, adopt above-mentioned interior oil fender structure, make clearance adjustment labour saving and time saving between interior oil fender copper tooth hole and the rotor shaft footpath surface, the precision is higher, it is more convenient, and add the supporting shoe on the bearing box, add anticreep adjusting bolt at interior oil fender terminal surface, the anticreep fixed block, current suspended structure relatively, can effectively prevent that interior oil fender from droing, the stability of structure has been improved, and can cooperate above-mentioned interior oil fender structure to adjust the clearance between copper tooth hole and the rotor shaft footpath surface, interior oil fender after making the clearance adjustment supports more firmly.

Drawings

In order to more clearly illustrate the embodiments of the present application 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 some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a front view of the assembly structure of the adjusting fixed block of the present invention;

FIG. 2 is a top view of the adjusting and fixing block assembly structure of the present invention;

fig. 3 is a schematic view of the anti-separation adjusting bolt and the related structure;

fig. 4 is a schematic view of the overall structure of the assembly structure of the present invention.

In the figure:

1 ┄ upper half turn; 2 ┄ lower half turn; 3 ┄ mounting steps; 4 ┄ transverse plate; 5 ┄ risers; 6 ┄ adjusting fixed block; 7 ┄ fixing bolt; 8 ┄ vertical adjustment bolt; 9 ┄ horizontal adjusting bolt; 10 ┄ lock nut; 11 ┄ bearing housing; 12 ┄ support the step; 13 ┄ anti-drop fixing block; 14 ┄ anti-drop adjusting bolt; 15 ┄ supporting the blocks.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

Referring to fig. 1, 2 and 4, the oil baffle in the turbine bearing box 11 with the adjusting function of the present invention includes an upper half ring 1 and a lower half ring 2, wherein, the two radial sides of the top of the lower half ring 2 are provided with horizontally arranged mounting steps 3, and the mounting steps 3 are used for mounting lugs in the existing structure; still include two adjustment fixed blocks 6 of the L type of constituteing by diaphragm 4 and riser 5, the diaphragm 4 of two adjustment fixed blocks 6 laminates the ladder transverse plane of two installation steps 3 respectively and is fixed through fixing bolt 7, the riser 5 and the radial overhanging in interior oil fender of partial diaphragm 4 of adjustment fixed block 6, the overhanging part in interior oil fender of diaphragm 4 is twisted downwards and is equipped with vertical adjusting bolt 8, outwards twist on riser 5 and be equipped with horizontal adjusting bolt 9, vertical adjusting bolt 8 and horizontal adjusting bolt 9 run through diaphragm 4 and riser 5 respectively and all dispose lock nut 10. During the use, fix the diaphragm 4 of two adjustment fixed blocks 6 on the ladder horizontal plane of installation step 3 through fixing bolt 7 earlier, then hang the lower half circle 2 that is equipped with adjustment fixed block 6 on bearing box 11, and make the afterbody of vertical adjusting bolt 8 and horizontal adjusting bolt 9 butt respectively on bearing box 11, here utilize bearing box 11 current support stair structure can, adjust the clearance of the vertical direction between interior oil fender copper tooth hole and the rotor shaft footpath surface through vertical adjusting bolt 8, realize the clearance of the horizontal direction between interior oil fender copper tooth hole and the rotor shaft footpath surface through horizontal adjusting bolt 9, adjust and lock through lock nut 10 after target in place, the clearance adjustment of interior oil fender has been accomplished promptly.

Referring to fig. 3 to 4, the assembly structure of the present invention includes a bearing housing 11, two supporting steps 12 distributed at 180 ° and horizontally disposed are disposed at the opening edge of the bearing housing 11, which belongs to the structure already existing in the existing bearing housing 11, and the supporting steps 12 are used to hang a hanging lug in the prior art; the inner oil baffle is further included, the tails of the two vertical adjusting bolts 8 are respectively abutted against the step transverse face of the supporting step 12, the vertical adjusting bolts 8 are used for adjusting the vertical gap between the inner hole of the copper tooth of the inner oil baffle and the surface of the shaft diameter of the rotor, the tails of the two horizontal adjusting bolts 9 are respectively abutted against the step vertical face of the supporting step 12, and the horizontal adjusting bolts 9 are used for realizing the horizontal gap between the inner hole of the copper tooth of the inner oil baffle and the surface of the shaft diameter of the rotor; two anti-falling fixed blocks 13 which are symmetrically distributed about a vertical plane are fixed on the axial end face of the lower half-ring 2, an anti-falling adjusting bolt 14 is screwed outwards along the radial direction of an inner oil baffle on each anti-falling fixed block 13, each anti-falling adjusting bolt 14 is provided with a locking nut 10, two supporting blocks 15 which are arranged corresponding to the anti-falling adjusting bolts 14 are fixed on the bearing box 11, and specifically, the supporting blocks 15 can be fixed on the end face of the bearing box 11 and are arranged opposite to the anti-falling fixed blocks 13; two anticreep adjusting bolt 14 are 60-120 contained angles and the afterbody respectively the butt on two supporting shoes 15, and preferably, two anticreep adjusting bolt 14 are 90 jiaos, and anticreep adjusting bolt 14 is in the intermediate position like this, and the atress is more even, and interior oil shield supports more firmly. When the adjusting and fixing device is used, firstly, the adjusting and fixing block 6 and related structures are assembled according to the method described in the previous section, so that the gap between the inner hole of the copper teeth of the inner oil retainer and the radial surface of the rotor shaft is adjusted to be in a proper state, then the anti-falling fixing block 13 is fixed on the axial end face of the inner oil retainer, the supporting block 15 is fixed on the end face of the bearing box 11, then the anti-falling adjusting bolt 14 is screwed on the anti-falling fixing block 13 until the tail part of the anti-falling adjusting bolt abuts against the supporting block 15, and then. It should be noted that the lock nut 10 on the anti-separation adjusting bolt 14 cannot be over-tightened, otherwise the oil stop inner hole gap will be changed, and the proper tightening will stress the tail of the anti-separation adjusting bolt 14.

The same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components; in the description of the present application, it is to be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the above terms may be understood by those skilled in the art according to specific situations.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (3)

1. The utility model provides a turbine bearing box inner oil fender with regulatory function, includes half circle (1) and half circle (2) down, and the radial both sides at half circle (2) top are equipped with installation step (3) that the level was arranged down, its characterized in that: still include two adjustment fixed blocks (6) of the L type of constituteing by diaphragm (4) and riser (5), diaphragm (4) of two adjustment fixed blocks (6) laminate the ladder transverse plane of two installation steps (3) respectively and are fixed through fixing bolt (7), riser (5) and partial diaphragm (4) of adjustment fixed block (6) radially outwards extend in interior oil blanket, the portion of overhanging in interior oil blanket of diaphragm (4) is twisted downwards and is equipped with vertical adjusting bolt (8), outwards twist on riser (5) and be equipped with horizontal adjustment bolt (9), vertical adjusting bolt (8) and horizontal adjustment bolt (9) run through diaphragm (4) and riser (5) respectively and all dispose lock nut (10).

2. An assembly structure comprising a bearing housing (11), the opening edge of the bearing housing (11) being provided with two supporting steps (12) distributed at 180 ° and arranged horizontally, characterized in that: the oil baffle further comprises the inner oil baffle as claimed in claim 1, the tail parts of the two vertical adjusting bolts (8) are respectively abutted on the step transverse surface of the supporting step (12), and the tail parts of the two horizontal adjusting bolts (9) are respectively abutted on the step vertical surface of the supporting step (12); the axial end face of half circle (2) down is fixed with two anticreep fixed blocks (13) about vertical face symmetric distribution, all along interior oil fender radial outside the screwing in on every anticreep fixed block (13) and be equipped with anticreep adjusting bolt (14), anticreep adjusting bolt (14) all dispose lock nut (10), be fixed with two supporting shoes (15) that correspond anticreep adjusting bolt (14) and set up on bearing box (11), two anticreep adjusting bolt (14) are 60-120 contained angles and afterbody respectively the butt on two supporting shoes (15).

3. The fitting structure according to claim 2, wherein: the two anti-falling adjusting bolts (14) form an included angle of 90 degrees.

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