CN209875757U

CN209875757U - Filter pump bearing part structure

Info

Publication number: CN209875757U
Application number: CN201920486207.2U
Authority: CN
Inventors: 李月仙
Original assignee: Zhenxin Turbine Machinery Co Ltd
Current assignee: Zhenxin Turbine Machinery Co Ltd
Priority date: 2019-04-11
Filing date: 2019-04-11
Publication date: 2019-12-31
Anticipated expiration: 2029-04-11

Abstract

A kind of filtrate pump bearing part structure, in the technical field of centrifugal pump, the bearing connects in series on the basic shaft and installs in the bearing body, the bearing body gland is fixedly connected to the outer end surface of the bearing body, characterized by that the clearance fit between said bearing body gland and basic shaft forms the gland clearance, set up the wind-guiding plate cooperating with its rotation outside the bearing body gland, the wind-guiding plate interference cup joints on the basic shaft, the bearing body gland inboard cooperates and sets up the oil trap, set up the oil return hole on the bearing body, form the oil return pipeline structure through the oil return hole between oil trap, the bearing body cavity; this patent scheme novel in design, the design is reasonable, and the aviation baffle rotates together with the main shaft and constitutes the atmoseal and act on gland clearance formation pressure, effective balanced lubricating oil leakage pressure to through the oil return structure that sump, oil gallery constitute, make the lubricating oil that splashes in the bearing cavity return to the bearing internal smoothly, guarantee that the bearing is lubricated abundant, and can adapt to the service environment who frequently stops better.

Description

Filter pump bearing part structure

Technical Field

The utility model belongs to the technical field of the centrifugal pump, concretely relates to filtrating pump bearing unit structure.

Background

The filtrate pump is one kind of equipment capable of exhausting gas-liquid mixture normally in negative pressure container, and when the filtrate pump is used in papermaking process, it is used in conveying white water in the bottom of the vapor-liquid separator of vacuum system, and has unique sucking performance and high cavitation resistance. The liquid filter pump of prior art, generally with separator's liquid level control interlocking, the liquid filter pump need frequently open and stop in separator working process, and the oil blanket of bearing part is worn and torn easily, leads to the frequent oil leak of pump bearing chamber, the oil blanket is frequently changed, and the maintenance cost is higher, and the greasy dirt of leaking simultaneously not only influences the environment, and the oil leak phenomenon still can arouse bearing lubrication badly, makes bearing and liquid filter pump life shorten.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a filtrating pump bearing part structure to overcome the problem that exists among the prior art.

The utility model provides a filtrating pump bearing part structure, is including connecting complex main shaft and bearing, bearing body gland, the bearing concatenates on the main shaft and installs at the bearing body, bearing body gland fixed connection is at the outer terminal surface of bearing body, its characterized in that bearing body gland and main shaft between clearance fit constitute the gland clearance, the bearing body gland outside set up rather than normal running fit's wind-guiding dish, the wind-guiding dish interference cup joints on the main shaft, the inboard cooperation of bearing body gland sets up the oil trap, set up the oil gallery on the bearing body, constitute oil return pipeline structure through the oil gallery between oil trap, the bearing body inner chamber.

The filtrate pump bearing component structure is characterized in that an air guide groove is arranged on the outer end face of the bearing body gland in a matched mode, an air guide ring is arranged on the inner end face of the air guide disc in a matched mode, the air guide ring is inserted into the air guide groove, the air guide ring is not in contact with the air guide groove, and the air guide ring is in rotating fit in the air guide groove.

The filtrate pump bearing part structure is characterized in that the oil collecting groove is arranged at the bottom of the inner side of the bearing body gland in a matching mode, the oil return hole is of an inclined through hole structure, and two ends of the oil return hole are respectively connected with the oil collecting groove and the bottom of the inner cavity of the bearing body.

The filtrate pump bearing part structure is characterized in that an oil drain hole is formed in the cavity bottom of the bearing body and is matched with a plug screw seal, and an oil filling hole is formed in the top of the cavity of the bearing body and is matched with a breathable oil plug.

The filtrate pump bearing component structure is characterized in that a lubricating oil indicator is arranged on the bearing body in a matched mode, and the geometric lowest point of the air guide ring is higher than the central position of the lubricating oil indicator.

The filter pump bearing component is novel in structural design and reasonable in conception, the air guide disc and the main shaft rotate together to form an air seal to act on a gland clearance to form pressure, lubricating oil leakage pressure is effectively balanced, lubricating oil splashed in a bearing cavity smoothly returns to the bearing body through an oil return structure formed by the oil collecting groove and the oil return hole, the bearing is guaranteed to be fully lubricated, and the filter pump bearing component can better adapt to the service environment of frequent start and stop.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a left side view schematic diagram of the oil sump;

in the figure: the bearing comprises a bearing body 1, an oil return hole 1a, an oil drain hole 1b, a lubricating oil pointer 1c, an oil filling hole 1d, a bearing body gland 2, an oil collecting groove 2a, a gland gap 2b, an air guide groove 2c, a bearing 3, a main shaft 4, an air guide disc 5, an air guide ring 5a and a bearing body inner cavity 6.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings:

as shown in fig. 1 and 2, a bearing component structure of a filtrate pump is provided, wherein a bearing 3 is connected in series with a main shaft 4 and is installed in a bearing body 1, a bearing body gland 2 is fixedly connected to the outer end surface of the bearing body 1, a lubricating oil is filled in an inner cavity 6 of the bearing body, an oil drain hole 1b is arranged at the bottom of the bearing body 1 and is provided with a plug screw seal in a matching manner, an oil filling hole 1d is arranged at the top of the cavity of the bearing body 1 and is provided with a breathable oil plug in a matching manner, and a lubricating oil indicator 1c is arranged on the bearing body; a gland clearance 2b is formed by clearance fit between the bearing body gland 2 and the main shaft 4, an air guide disc 5 which is in running fit with the bearing body gland 2 is arranged on the outer side of the bearing body gland 2, an air guide groove 2c is arranged on the outer end face of the bearing body gland 2 in a matching way, an air guide ring 5a is arranged on the inner end face of the air guide disc 5 in a matching way, the geometric lowest point of the air guide ring 5a is higher than the central position of a lubricating oil indicator 1c, the air guide ring 5a is inserted in the air guide groove 2c, the air guide ring 5a is not in contact with the air guide groove 2c, the air guide disc 5 is sleeved on the main shaft 4 in an interference way and rotates along with; the oil collecting groove 2a is arranged at the bottom of the inner side of the bearing body gland 2 in a matched mode, the bearing body 1 is provided with an oil return hole 1a, the oil return hole 1a is of an inclined through hole structure, two ends of the oil return hole 1a are connected with the oil collecting groove 2a and the bottom of the inner cavity 6 of the bearing body respectively, and an oil return pipeline structure is formed between the oil collecting groove 2a and the inner cavity 6 of the bearing body through the oil return hole 1 a.

In the above-mentioned embodiment, be filled with lubricating oil in the bearing body inner chamber 6 and play the cooling for bearing 3, the lubrication action, the cooperation of oil drain 1b sets up the plug screw sealed dirty oil that can discharge, the renewal oil at the bottom of the chamber of bearing body 1, the cooperation of 1 chamber top oil filling hole 1d of bearing body sets up the cooperation of breathable oil plug and plays discharge intracavity air and dirt-proof effect, the cooperation sets up lubricating oil pointer 1c on the bearing body 1 surface and is used for observing the lubricating oil liquid level, lubricating oil liquid level is near lubricating oil pointer 1c center in the filtrate pump working process. The air guide disc 5 is made of elastic composite materials, the inner circle of the air guide disc 5 is connected with the main shaft 4 in an interference fit mode, when the liquid filter pump works, the air guide disc 5 rotates along with the main shaft 4 to form rotating fit with the static bearing body gland 2, ambient air is sucked to rotate at high speed and generate centrifugal force, the centrifugal force is opposite to the centrifugal force generated by throwing splashed lubricating oil outwards, as the gland gap 2b is formed between the bearing body gland 2 and the main shaft 4, the inside and outside air flow is communicated, a part of air brought in from the outside is consumed in a bearing cavity, and the rest of air overflows from the breathable oil plug of the oil injection hole 1d, the structure can reduce or completely eliminate the leaked differential pressure of the splashed lubricating oil, and provides guarantee for the continuous and stable operation of the liquid; when the filtrate pump stops, the geometric lowest point of the air guide ring 5a is higher than the center of the lubricating oil indicator 1c, so that the lubricating oil in the bearing cavity cannot leak out. The bottom of the inner side of the bearing body gland 2 is provided with an oil collecting groove 2a which can smoothly collect splashed lubricating oil, the lubricating oil is guided into the inner cavity 6 of the bearing body along the oil return hole 1a, the circulation is carried out, so that the bearing part is kept at a safe oil level, the reduction of the lubricating oil amount is avoided, the frequent maintenance is carried out, and the problems that the bearing is damaged and blocked and the filter pump is stopped due to serious oil shortage are avoided.

In the above embodiments, the bearings 3 are generally disposed at two ends of the bearing body 1, and only one end structure is shown in fig. 1, and the other end structure is similar.

The bearing part is used as an important part of the filtrate pump, whether effective lubrication directly relates to the service life of the bearing and the service life of the whole filtrate pump, the air guide disc 5 and the main shaft 4 rotate synchronously to generate centrifugal force to form an air seal to act on a gland gap to form pressure, lubricating oil is effectively prevented from leaking outwards, the filtrate pump can better adapt to the service environment of frequent start and stop, the improved structure can obviously reduce the maintenance workload of the filtrate pump, and the working environment of the filtrate pump is improved.

Claims

1. A filtrate pump bearing component structure comprises a main shaft (4), a bearing (3), a bearing body (1) and a bearing body gland (2) which are connected and matched, wherein the bearing (3) is connected on the main shaft (4) in series and is arranged in the bearing body (1), the bearing body gland (2) is fixedly connected with the outer end face of the bearing body (1), the bearing body gland structure is characterized in that a gland clearance (2 b) is formed by clearance fit between the bearing body gland (2) and the main shaft (4), a wind guide disc (5) which is in running fit with the bearing body gland (2) is arranged on the outer side of the bearing body gland (2), the wind guide disc (5) is sleeved on the main shaft (4) in an interference fit mode, an oil collecting groove (2 a) is arranged on the inner side of the bearing body gland (2) in a fit mode, an oil return hole (1 a) is formed in the bearing body (1), and an oil return pipeline structure is formed between the oil collecting groove (2 a) and the inner cavity (6) of the.

2. The filtrate pump bearing component structure as claimed in claim 1, wherein the outer end surface of the bearing body gland (2) is provided with a wind guide groove (2 c) in a matching manner, the inner end surface of the wind guide disc (5) is provided with a wind guide ring (5 a) in a matching manner, the wind guide ring (5 a) is inserted into the wind guide groove (2 c), the wind guide ring (5 a) is not in contact with the wind guide groove (2 c), and the wind guide ring (5 a) forms a rotation fit in the wind guide groove (2 c).

3. The filtrate pump bearing component structure as recited in claim 1, wherein said oil collection groove (2 a) is disposed at the bottom of the inner side of the bearing body gland (2) in a fitting manner, said oil return hole (1 a) is in an inclined through hole structure, and two ends of the oil return hole (1 a) are respectively connected with the oil collection groove (2 a) and the bottom of the inner cavity (6) of the bearing body.

4. The structure of the bearing component of the filtrate pump as claimed in claim 1, wherein the bottom of the cavity of the bearing body (1) is provided with an oil drain hole (1 b) and is matched with a plug screw seal, and the top of the cavity of the bearing body (1) is provided with an oil filling hole (1 d) and is matched with a breathable oil plug.

5. The filtrate pump bearing component structure as claimed in claim 2, wherein the bearing body (1) is provided with a lubricating oil indicator (1 c) in a matching manner, and the geometric lowest point of the air guide ring (5 a) is higher than the center of the lubricating oil indicator (1 c).