CN110645466B

CN110645466B - Oil collection bottle with self-liposuction and oil collection functions

Info

Publication number: CN110645466B
Application number: CN201910787895.0A
Authority: CN
Inventors: 邓伦胜; 章宏清
Original assignee: Jiangmen Xinhui Special Seal Technology Co ltd
Current assignee: Jiangmen Xinhui Special Seal Technology Co ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-12-01
Anticipated expiration: 2039-08-26
Also published as: CN110645466A

Abstract

The invention provides an oil collecting bottle with an autonomous grease pumping and collecting function, which at least comprises a connector and a bottle body, wherein the connector is in a step shape and consists of a large head and a small head, the small head is fixed in a grease discharging channel, the upper part of the small head is arranged in a hollow shape, and the lower part of the small head is fixed in the grease discharging channel; be provided with the slider in the bottle, the slider comprises connecting rod on upper portion and the counter weight of lower part, and wherein the connecting rod is located the inside passage of connector and can follow inside passage reciprocating slide under the action of gravity of counter weight, and the top of connecting rod is provided with scrapes the fat circle, scrapes the connecting rod diameter of fat ring below and reduces, and with the inside passage of adapter between form and store up the fat chamber, scrape the fat that the fat circle will store up the fat intracavity when the connecting rod slides outwards and scrape to the bottle in. The device can suck out and collect the grease in the bearing cavity by utilizing suction, and can avoid the environmental pollution and equipment damage caused by the leakage of the waste grease; and the grease pumping speed can be controlled, and the grease retaining quantity in the bearing cavity is ensured.

Description

Oil collection bottle with self-liposuction and oil collection functions

Technical Field

The invention provides an oil collecting bottle with an autonomous grease pumping and collecting function, particularly relates to an automatic grease pumping device for bearing lubrication, and belongs to the technical field of mechanical lubrication.

Background

In the mechanical field, basically all large mechanical equipment cannot be separated from a bearing, and the bearing can not be lubricated in a rotating mode. Since there is a gap between the rotating shaft and the housing, there is no solid contact, and thermal expansion is allowed, grease in the bearing cavity needs to be sealed to prevent leakage of grease in the bearing cavity. The labyrinth seal is a device which is provided with a plurality of annular seal teeth arranged in sequence around a rotating shaft, a series of cut-off gaps and expansion cavities are formed between the teeth, and the purpose of leakage resistance is achieved by the throttling effect generated when the sealed medium passes through the gaps of the zigzag labyrinth. The labyrinth seal is suitable for high temperature, high pressure and high rotation speed, so that the seal form is widely used for sealing shaft ends and stages of steam turbines, gas turbines, compressors and blowers. However, the grease in the bearing cavity affects the lubrication performance and poses a safety hazard to the bearing due to deterioration and incorporation of abrasive dust during use, and the grease in the seal cavity needs to be renewed periodically or aperiodically.

The bearing seat which is generally small and convenient to update manually can be updated manually when a bearing is replaced or the bearing is shut down, and the large bearing seat mainly adopts a method of automatically supplementing lubricating grease or manually supplementing lubricating grease to extrude waste lubricating grease in a bearing cavity out of the bearing cavity and discharge the waste lubricating grease through a sealing piece or a grease discharge hole arranged on the bearing seat or a bearing end cover. The method for manually or automatically and forcibly supplementing the lubricating grease to extrude the waste lubricating grease has two problems: firstly, pressure is applied to a sealing element to cause sealing leakage, the environment is polluted and difficult to clean, and hidden dangers are left for the action safety of equipment maintenance personnel; secondly, the bearing cavity is heated due to the fact that lubricating grease is filled in the bearing cavity, so that the bearing is abraded in an accelerated manner, and the lubricating grease is deteriorated and loses efficacy in advance; in addition, the grease pumping mechanism adopting electric power as power also exists in the market at present, but the mechanism has the defects of complex installation, higher cost, poor use effect and the like, so the grease pumping mechanism has no popularization value. Most importantly, in some special working occasions, such as a pitch bearing of a wind generating set, grease in a bearing cavity is replaced once in a period, and the period is longer and is usually 12 months, so that when the grease pumping device is used, the grease pumping speed is required to be noticed, and the waste grease at the bottom in the bearing cavity can be pumped out in the period, and the grease retention required by normal work in the bearing cavity can be kept, so that extremely high requirements are provided for the design and the use of a grease pumping mechanism.

Disclosure of Invention

The invention provides the oil collecting bottle with the function of self-body grease pumping and collecting aiming at the defects in the background technology, the device can suck out and collect grease in the bearing cavity by utilizing suction force, and can avoid environmental pollution and equipment damage caused by waste grease leakage; and the grease pumping speed can be controlled, and the grease retaining quantity in the bearing cavity is ensured.

The technical scheme adopted for realizing the above purpose of the invention is as follows:

an oil collecting bottle with an automatic grease pumping and collecting function is arranged on a grease discharging channel of a bearing seat, and synchronously rotates along with the bearing seat, the oil collecting bottle at least comprises a connector and a bottle body, the connector is in a step shape and consists of a large head and a small head which are of hollow structures, wherein the small head is fixed in the grease discharging channel, the upper part of the small head is arranged in a hollow shape, the lower part of the small head is provided with threads and is fixed in the grease discharging channel through the threads, the large head penetrates through the bottle cover and is positioned in the bottle body, the bottle cover is fixed on the bearing seat through the large head through extrusion, and the bottle body and the bottle cover are fixedly connected through the threads; a sliding block is arranged in the bottle body and consists of a connecting rod at the upper part and a counterweight block at the lower part, wherein the connecting rod is positioned in the internal channel of the connecting head and can slide back and forth along the internal channel under the action of the gravity of the counterweight block; two guide rods are mounted at the bottom of the big head, a limiting block is arranged at the bottom of each guide rod, two guide holes are formed in the balancing weight corresponding to the guide rods, the guide rods penetrate through the guide holes, and the balancing weight slides along the guide rods; the top of the connecting rod is provided with a grease scraping ring, the diameter of the connecting rod below the grease scraping ring is reduced, a grease storage cavity is formed between the connecting rod and the inner channel of the connector, and when the connecting rod slides outwards, the grease scraping ring scrapes grease in the grease storage cavity into the bottle body; the bottle is characterized in that a guide cylinder is further arranged in the bottle body, the guide cylinder is fixed in the bottle body, the top of the guide cylinder is in sealing connection with the bottle opening of the bottle body, the bottom of the guide cylinder is suspended, and the large head, the sliding block and the guide rod are all located inside the guide cylinder.

And a sealing gasket is arranged between the big head and the bottle cap.

An exhaust pipe communicated with the outside is arranged in the bottle body.

The part of the upper part of the limiting block contacting with the balancing weight and the part of the lower part of the big head contacting with the balancing weight are both provided with damping elements.

Compared with the prior art, the deflection-resistant multi-lip sealing device provided by the invention has the following advantages: 1. when the oil collecting device is used, the oil collecting bottle only needs to be fixed on the grease discharging channel on the bearing, the grease in the bearing cavity can be sucked out by utilizing the power generated in the rotating process of the bearing, and no additional power is needed, so that the oil collecting device is simple and convenient to use. 2. When the oil collecting bottle provided by the invention works, when the oil collecting bottle rotates to the bottommost part along with the bearing, the grease in the bearing cavity is positioned above the grease discharging channel, and the waste grease in the grease is deposited on the bottom layer due to high density, so that viscous waste grease is accumulated in the grease discharging channel and the inner channel of the connector, and the sliding block and the grease scraping ring slide to the bottom of the bottle body. Along with the bearing continues to rotate, when the oil collecting bottle rotates to the topmost along with the bearing, slider and scraping fat ring slide to the topmost of bottle, and the waste grease in the inner channel is ejecting out to the scraping fat ring, nevertheless because the upper portion setting of microcephaly is the fretwork form, still has a small part of grease to pass the fretwork and get into the storage fat intracavity of scraping fat ring below. The bearing continues to rotate, and in the process that the oil collecting bottle rotates to the bottommost part along with the bearing, the sliding block and the grease scraping ring slide downwards, so that a small part of grease in the grease storage cavity is scraped and conveyed into the bottle body. Through tests, the single grease scraping amount is only in milligram level, so that the grease retaining amount required for normal work in the bearing cavity can be maintained. 3. After the grease in the bearing cavity is pumped out, the waste grease can be directly stored in the bottle body, and the problem that the environment is difficult to clean due to the leakage of the grease is avoided.

Drawings

Fig. 1 is a schematic view of the overall structure of an oil collection bottle with an autonomous grease pumping function according to the present invention;

FIG. 2 is a schematic structural diagram of a connecting head;

in the figure: 1-bearing seat, 2-grease discharging channel, 3-bottle body, 4-big head, 5-small head, 6-bottle cap, 7-connecting rod, 8-balancing weight, 9-grease scraping ring, 10-grease storage cavity, 11-sealing pad, 12-exhaust pipe, 13-guide rod, 14-limiting block, 15-damping element and 16-guide cylinder.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

The overall structure of the anti-deflection multi-lip sealing device for the rotating shaft is shown in fig. 1, and fig. 1 is a structural diagram of the oil collecting bottle rotating to the top along with the bearing, wherein the bottle body 3 is in an inverted state. The oil collecting bottle is arranged on the grease discharging channel 2 of the bearing seat 1 and synchronously rotates along with the bearing seat, the oil collecting bottle at least comprises a connector and a bottle body 3, the connector is in a step shape and consists of a large head 4 and a small head 5 which are of hollow structures, and the structure of the connector is shown in figure 2. Wherein the small head 5 is fixed in the grease discharging channel, the upper part of the small head is hollow, the lower part of the small head is provided with threads and is fixed in the grease discharging channel through the threads, the big head penetrates through the bottle cap 6 and is positioned in the bottle body, the bottle cap is fixed on the bearing seat through extrusion, and the bottle body is fixed with the bottle cap through threaded connection. A sealing gasket 11 is arranged between the big head and the bottle cap and used for sealing a gap between the big head and the bottle cap so as to prevent grease entering the bottle body from leaking from the bottle opening.

Be provided with the slider in the bottle, the slider comprises connecting rod 7 on upper portion and balancing weight 8 of lower part, and wherein the connecting rod is located the inside passage of connector and can follow inside passage reciprocating slide under the action of gravity of balancing weight, and the top of connecting rod is provided with scrapes fat ring 9, scrapes the connecting rod diameter of fat ring below and reduces, and the inside passage of connector between form and store up fat chamber 10, scrape when the connecting rod slides outwards the fat that the fat ring will store up the fat intracavity and scrape to the bottle in. Two guide rods 13 are installed at the bottom of the big head, a limiting block 14 is arranged at the bottom of each guide rod, two guide holes are formed in the balancing weight corresponding to the guide rods, the guide rods penetrate through the guide holes, and the balancing weight slides along the guide rods. The part of the upper part of the limiting block contacting with the balancing weight and the part of the lower part of the big head contacting with the balancing weight are both provided with a damping element 15. In this embodiment, the damping element is a spring, which is used to reduce the loss caused by the impact of the weight.

An exhaust pipe 12 communicated with the outside is arranged in the bottle body, and the exhaust pipe is used for exhausting gas in the bottle body when grease enters the bottle body. The bottle is characterized in that a guide cylinder 16 is further arranged in the bottle body, the guide cylinder is fixed in the bottle body, the top of the guide cylinder is hermetically connected with the bottle opening of the bottle body, the bottom of the guide cylinder is suspended, and the large head, the sliding block and the guide rod are all located inside the guide cylinder. Under the flow guide effect of the flow guide cylinder, grease in the bottle body flows outside the flow guide cylinder, and in order to prevent the grease entering the bottle body from flowing back to the bearing cavity when the bottle body is inverted.

The working principle of the oil collecting bottle provided by the invention is as follows: when the oil collecting bottle rotates to the bottommost part along with the bearing during operation, the grease in the bearing cavity is located above the grease discharging channel at the moment, the waste grease in the grease is deposited on the bottom layer due to high density, so that the viscous waste grease is gathered in the grease discharging channel and the inner channel of the connector, and the sliding block and the grease scraping ring slide to the bottom of the bottle body at the moment. With the bearing rotating continuously, when the oil collecting bottle rotates to the topmost part along with the bearing (as shown in fig. 1), the sliding block and the grease scraping ring slide to the topmost part of the bottle body, the grease scraping ring ejects out the waste grease in the internal channel, however, because the upper part of the small head is hollow, a small part of grease still passes through the hollow part and enters the grease storage cavity below the grease scraping ring. The bearing continues to rotate, and in the process that the oil collecting bottle rotates to the bottommost part along with the bearing, the sliding block and the grease scraping ring slide downwards, so that a small part of grease in the grease storage cavity is scraped and conveyed into the bottle body. Through tests, the single grease scraping amount is only in milligram level, so that the grease retaining amount required for normal work in the bearing cavity can be maintained.

Claims

1. The utility model provides an oil collection bottle with independently take out fat collection fat function, oil collection bottle installs on the grease discharging channel of bearing frame, and oil collection bottle is along with bearing frame synchronous revolution, its characterized in that: the oil collecting bottle at least comprises a connector and a bottle body, wherein the connector is in a step shape and consists of a large head and a small head which are of hollow structures, the small head is fixed in the grease discharging channel, the upper part of the small head is arranged in a hollow shape, the lower part of the small head is provided with threads and is fixed in the grease discharging channel through the threads, the large head penetrates through the bottle cap and is positioned in the bottle body, the large head fixes the bottle cap to the bearing seat through extrusion, and the bottle body and the bottle cap are fixedly connected through the threads; a sliding block is arranged in the bottle body and consists of a connecting rod at the upper part and a counterweight block at the lower part, wherein the connecting rod is positioned in the internal channel of the connecting head and can slide back and forth along the internal channel under the action of the gravity of the counterweight block; two guide rods are mounted at the bottom of the big head, a limiting block is arranged at the bottom of each guide rod, two guide holes are formed in the balancing weight corresponding to the guide rods, the guide rods penetrate through the guide holes, and the balancing weight slides along the guide rods; the top of the connecting rod is provided with a grease scraping ring, the diameter of the connecting rod below the grease scraping ring is reduced, a grease storage cavity is formed between the connecting rod and the inner channel of the connector, and when the connecting rod slides outwards, the grease scraping ring scrapes grease in the grease storage cavity into the bottle body; the bottle is characterized in that a guide cylinder is further arranged in the bottle body, the guide cylinder is fixed in the bottle body, the top of the guide cylinder is in sealing connection with the bottle opening of the bottle body, the bottom of the guide cylinder is suspended, and the large head, the sliding block and the guide rod are all located inside the guide cylinder.

2. The oil collecting bottle with the function of self-body fat pumping and collecting according to claim 1, characterized in that: and a sealing gasket is arranged between the big head and the bottle cap.

3. The oil collecting bottle with the function of self-body fat pumping and collecting according to claim 1, characterized in that: an exhaust pipe communicated with the outside is arranged in the bottle body.

4. The oil collecting bottle with the function of self-body fat pumping and collecting according to claim 1, characterized in that: the part of the upper part of the limiting block contacting with the balancing weight and the part of the lower part of the big head contacting with the balancing weight are both provided with damping elements.