CN217633074U

CN217633074U - Anti-leakage centrifugal ventilation fan shaft seal part

Info

Publication number: CN217633074U
Application number: CN202221467056.4U
Authority: CN
Inventors: 王永进; 尹健; 王培义
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-10-21
Anticipated expiration: 2032-06-13

Abstract

The utility model discloses an anti-seepage centrifugal ventilator shaft seal part, which comprises a main shaft, a bearing frame and an oil baffle plate, wherein the bearing frame also comprises a bearing base and a shaft seal cover; a clamping groove for erecting a main shaft is formed in the middle of the upper end of the bearing base; the lower end of the shaft sealing cover is provided with clamping grooves with the same size corresponding to the clamping grooves in the middle of the bearing base to seal the main shaft; a plurality of oil return holes are transversely arrayed in the bearing base clamping groove; the positions, corresponding to the oil return holes in the bearing base clamping groove, of the inner part of the shaft sealing cover clamping groove are provided with the same number of oil return holes; the number of the bearing frames is two; the bearing frames are respectively arranged at two ends of the main shaft; an oil baffle plate is erected between the bearing frames; the oil baffle plate is of a trapezoidal frame structure; the lower end of the oil baffle plate is attached with a bottom plate; and a turntable is arranged at one end of the main shaft. The utility model discloses interval certain distance between two bearing frames has better heat dissipation and prevents that machine oil splashes the effect, and the inside oil gallery that is equipped with of bearing frame has saved more resources simultaneously.

Description

Anti-leakage centrifugal ventilation fan shaft seal part

Technical Field

The utility model relates to a motor bearing technical field specifically is a centrifugal ventilation fan shaft seal spare of antiseep.

Background

The centrifugal ventilator is essentially a variable flow constant pressure device. When the rotating speed is constant, the pressure-flow theoretical curve of the centrifugal fan is a straight line, and the actual characteristic curve is a curve due to internal loss. When the ventilator works, airflow axially enters the blade space from the ventilator, and then rotates along with the impeller under the driving of the impeller; on the other hand, a fan that increases energy by inertia, leaves the impeller in the radial direction, and performs work by the generated centrifugal force is called a centrifugal fan.

Motor shaft sealing member among the prior art wraps up whole motor shaft usually, and the ventilation hole aperture of motor is less, and the heat-sinking capability is relatively poor to in the middle of the mode of closely sealing, because the seepage of motor shaft high strength rotation easy production machine oil has brought health and potential safety hazard for operational environment, simultaneously, the seepage of machine oil has caused a large amount of wastes of resource.

SUMMERY OF THE UTILITY MODEL

The utility model provides a centrifugal ventilation fan shaft seal spare of antiseep, the bearing is great from beginning to end at a distance, for the motor provides better heat-sinking capability, still is equipped with the oil baffle between the bearing frame 2 all around, in the middle of the working process, has effectively prevented and has prevented and control machine oil and splash, and 2 inside oil gallery that are equipped with of bearing frame simultaneously, the machine oil that spills over will pass through oil gallery reuse, has prevented the wasting of resources.

In order to achieve the above object, the utility model provides a following technical scheme: an anti-leakage centrifugal ventilator shaft seal part comprises a main shaft 1, a bearing frame 2 and an oil baffle plate 3, wherein the bearing frame 2 further comprises a bearing base 202 and a shaft seal cover 203; a clamping groove for erecting the main shaft 1 is formed in the middle of the upper end of the bearing base 202; the lower end of the shaft sealing cover 203 is provided with clamping grooves with the same size corresponding to the middle clamping groove of the bearing base 202 to seal the main shaft 1; a plurality of oil return holes 201 are transversely arrayed in the bearing base 202 clamping groove; the same number of oil return holes 201 are formed in the positions, corresponding to the oil return holes 201 in the clamping groove of the bearing base 202, in the clamping groove of the shaft sealing cover 203; the number of the bearing frames 2 is two; the bearing frames 2 are respectively arranged at two ends of the main shaft 1; an oil baffle plate 3 is erected between the bearing frames 2; the oil baffle plate 3 is of a trapezoidal frame structure; the lower end of the oil baffle plate 3 is provided with a bottom plate 301 in a fitting manner; and a turntable 4 is arranged at one end of the main shaft 1.

Preferably, bolt holes for installing the shaft sealing cover 203 are formed in two sides of the clamping groove in the upper end of the bearing base 202, and installing holes corresponding to the bolt holes in the clamping groove in the upper end of the bearing base 202 are formed in two side faces of the shaft sealing cover 203.

Preferably, the two sides of the frame body of the oil baffle plate 3 are respectively provided with a side wing plate in an extending manner, and the side wing plates are provided with two bolt mounting holes in which fastening nuts are movably mounted.

Preferably, the oil baffle plate 3 and the bottom plate 301 are installed through bolts to form a closed cavity; the main shaft 1 is transversely erected in the cavity.

Preferably, the main shaft 1, the bearing frame 2 and the oil baffle plate 3 are all made of heat-resistant high-temperature metal materials.

Preferably, the number of the oil return holes 201 is four, the oil return holes are uniformly and symmetrically arranged on the inner part of each bearing frame 2, and the whole structure of the oil return holes 201 is a cylindrical cavity with an inner hollow part and an open upper end.

Preferably, the bearing frame 2 is two in number, and the inner and outer structures are completely the same.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) The number of the bearing frames 2 is two, and the bearing frames are respectively erected at the front end and the rear end of the main shaft 1, so that the balance of the front end and the rear end of the main shaft 1 is guaranteed, and the running stability of the main shaft 1 is improved.

(2) The interval certain distance between two bearing bracket 2 has improved main shaft 1 greatly because the heat that produces when high-speed operation provides better radiating effect for main shaft 1, simultaneously, has erect between two bearing bracket 2 and has kept off oil board 3, the better machine oil that has prevented main shaft 1 and produce when the operation splashes.

(3) A plurality of oil return holes 201 are formed in the bearing frame 2, engine oil flows into the oil return holes 201 after leaking, and when a certain amount of engine oil is accumulated in the oil return holes 201, the engine oil can be reused when the spindle 1 runs, so that resources are greatly saved.

Drawings

FIG. 1 is a view of the overall structure of the present invention;

FIG. 2 is a disassembled view of the oil baffle plate of the present invention;

fig. 3 is a side view of the present invention;

fig. 4 is a cross-sectional view of the present invention;

fig. 5 is a partial view of a bearing bracket.

The figures are labeled as follows:

1. a main shaft; 2. a bearing bracket; 201. an oil return hole; 202. a bearing mount; 203. a shaft seal cover; 3. an oil baffle plate; 301. a base plate; 4. a turntable.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of the present invention.

Referring to fig. 1-5, an anti-leakage centrifugal ventilator shaft seal comprises a main shaft 1, a bearing frame 2 and an oil baffle plate 3, wherein the bearing frame 2 further comprises a bearing base 202 and a shaft seal cover 203; a clamping groove for erecting the main shaft 1 is formed in the middle of the upper end of the bearing base 202; the lower end of the shaft sealing cover 203 is provided with clamping grooves with the same size corresponding to the middle clamping groove of the bearing base 202 to seal the main shaft 1; a plurality of oil return holes 201 are transversely arrayed in the bearing base 202 clamping groove; the same number of oil return holes 201 are formed in the positions, corresponding to the oil return holes 201 in the clamping groove of the bearing base 202, in the clamping groove of the shaft sealing cover 203; the number of the bearing frames 2 is two; the bearing frames 2 are respectively arranged at two ends of the main shaft 1; an oil baffle plate 3 is erected between the bearing frames 2; the oil baffle plate 3 is of a trapezoidal frame structure; the lower end of the oil baffle plate 3 is provided with a bottom plate 301 in a fitting manner; and a turntable 4 is arranged at one end of the main shaft 1.

Further, bolt holes for installing the shaft sealing cover 203 are formed in two sides of the clamping groove in the upper end of the bearing base 202, and installing holes corresponding to the bolt holes in the clamping groove in the upper end of the bearing base 202 are formed in two side faces of the shaft sealing cover 203.

Furthermore, 3 framework both sides of oil baffle all extend and are equipped with the flank board, be equipped with two bolt mounting holes on the flank board, wherein movable mounting fastening nut.

Further, the oil baffle plate 3 and the bottom plate 301 are installed through bolts to form a closed cavity; the main shaft 1 is transversely erected in the cavity. The inner space of the closed cavity is larger, and the main shaft 1 runs at high speed to enable engine oil on the outer surface of the main shaft 1 to splash, so that the internal environment problem of the equipment is easily caused.

Further, the main shaft 1, the bearing frame 2 and the oil baffle plate 3 are all made of heat-resistant high-temperature metal materials. The main shaft 1, the bearing frame 2 and the oil baffle plate 3 are made of heat-resistant high-temperature metal materials, and the main shaft 1, the bearing frame 2 and the oil baffle plate 3 have the advantages that under the state that the main shaft 1 runs at a high speed, friction between the main shaft 1 and the bearing frame 2 enables high temperature to be generated between the main shaft 1 and the bearing frame 2, engine oil can be in danger at certain temperature when the high temperature meets the engine oil, and the service life of equipment can be greatly reduced when the main shaft works at the high temperature.

Further, the number of the oil return holes 201 is four, the oil return holes are uniformly and symmetrically arranged on the inner portion of each bearing frame 2, and the whole structure of the oil return holes 201 is a cylindrical cavity with an inner hollow part and an upper opening.

Further, the number of the bearing frames 2 is two, and the inner structure and the outer structure are completely the same.

The installation process of this equipment: the bearing frame 2 is further divided into a bearing base 202 and a shaft cover 203, and the number of the bearing frames 2 is two; the bearing bases 202 of the two bearing frames 2 are respectively arranged on the same plane, a certain distance is arranged between the two bearing bases 202, the upper ends of the bearing bases 202 are provided with clamping grooves for erecting the main shaft 1, the two bearing frames 2 are arranged in parallel along the same straight line, meanwhile, the front end and the rear end of the main shaft 1 are respectively erected inside the clamping grooves at the upper ends of the bearing frames 2, furthermore, each shaft sealing cover 203 corresponding to the two bearing bases 202 is attached to the upper ends of the bearing bases 202, the lower end of each shaft sealing cover 203 is provided with a clamping groove which is matched with the bearing base 202 and has the same radian, the opening of each clamping groove faces downwards, at the moment, the clamping grooves at the lower end of each shaft sealing cover 203 and the clamping grooves at the upper ends of the bearing bases 202 form circular holes, and the main shaft 1 is completely sealed by the circular holes; the clamping groove two sides of the upper end of the bearing frame 2 are provided with threaded holes, the clamping groove two sides of the shaft sealing cover 203 are provided with threaded openings corresponding to the threaded holes, the threaded holes of the shaft sealing cover 203 correspond to the threaded holes of the clamping groove of the bearing frame 2 in a laminating mode, the shaft sealing cover passes through the threaded mounting holes to be locked and mounted through the fastening bolts, the sealing performance of the main shaft 1 is further reinforced, and the stability of the bearing is improved. After the installation of bearing bracket 2 is accomplished, will keep off 3 cages of oiled plate and inlay between two bearing base 202 to at 3 lower extreme laminating mounting plate 301 that keep off the oiled plate, bottom plate 301 and the oiled plate 3 provide the effect that prevents that machine oil from splashing for main shaft 1, simultaneously, keep off 3 inner spaces of oiled plate great, have better heat dissipation function, provide the guarantee for 1 long-time high-speed operations of main shaft.

The utility model discloses a theory of operation: through two bearing bracket 2 with 1 balanced the erections of main shaft fixed, make 1 rotation of main shaft more stable, it is further, bearing bracket 2 still includes bearing base 202 and axle closing cap 203, cooperation through the draw-in groove between bearing base 202 and the axle closing cap 203, further sealed locking with 1 main shaft, the difficult seepage machine oil in the middle of the high-speed centrifugal operation process of main shaft 1 has been guaranteed, 2 inside four oil gallery 201 that set up of bearing bracket simultaneously, even also can carry out reuse through oil gallery 201 after 1 muscle seepage of main shaft, a large amount of resources are saved, 3 erects of oil baffle and installs between two bearing bracket 2, 1 rotation of main shaft produced machine oil splashes, can be sheltered from by oil baffle 3 promptly, prevent the destruction that produces in the inside of machinery, and 3 inside cavities of oil baffle are great, better ventilation effect is provided for main shaft 1.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a centrifugal fan shaft seal spare of antiseep, includes the main shaft, bearing bracket and oil baffle, its characterized in that: the bearing frame further comprises a bearing base and a shaft sealing cover; a clamping groove for erecting a main shaft is formed in the middle of the upper end of the bearing base; the lower end of the shaft sealing cover is provided with clamping grooves with the same size corresponding to the clamping grooves in the middle of the bearing base to seal the main shaft; a plurality of oil return holes are transversely arrayed in the bearing base clamping groove; the positions, corresponding to the oil return holes in the bearing base clamping groove, of the inner part of the shaft sealing cover clamping groove are provided with the same number of oil return holes; the number of the bearing frames is two; the bearing frames are respectively arranged at two ends of the main shaft; an oil baffle plate is erected between the bearing frames; the oil baffle plate is of a trapezoidal frame structure; the lower end of the oil baffle plate is attached with a bottom plate; and a turntable is arranged at one end of the main shaft.

2. The anti-leakage centrifugal fan shaft seal of claim 1, wherein: the bearing seat upper end draw-in groove both sides are equipped with the bolt hole that is used for installing the axle closing cap, axle closing cap both sides face is equipped with the mounting hole that corresponds with bearing seat upper end draw-in groove bolt hole.

3. The anti-leakage centrifugal fan shaft seal of claim 1, wherein: and side wing plates are arranged on two sides of the oil baffle plate frame body in an extending manner, two bolt mounting holes are formed in the side wing plates, and fastening nuts are movably mounted in the bolt mounting holes.

4. The anti-leakage centrifugal fan shaft seal of claim 1, wherein: the oil baffle plate and the bottom plate are installed through bolts to form a closed cavity; the main shaft is transversely erected in the cavity.

5. The anti-leakage centrifugal fan shaft seal of claim 1, wherein: the oil return holes are evenly and symmetrically arranged on the inner portion of each bearing frame, the total number of the oil return holes is four, and the whole structure of the oil return holes is a cylindrical cavity with an inner hollow upper end opening.

6. The anti-leakage centrifugal fan shaft seal of claim 1, wherein: the number of the bearing frames is two, and the inner structure and the outer structure are completely the same.