CN216280580U - Oil supplementing device for centrifugal machine bearing and centrifugal machine with same - Google Patents
Oil supplementing device for centrifugal machine bearing and centrifugal machine with same Download PDFInfo
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- CN216280580U CN216280580U CN202122950805.0U CN202122950805U CN216280580U CN 216280580 U CN216280580 U CN 216280580U CN 202122950805 U CN202122950805 U CN 202122950805U CN 216280580 U CN216280580 U CN 216280580U
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- oil
- storage device
- pressurizing
- supplementing
- centrifuge
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- 230000001502 supplementing effect Effects 0.000 title claims abstract description 42
- 239000003921 oil Substances 0.000 claims abstract description 122
- 229910001335 Galvanized steel Inorganic materials 0.000 claims abstract description 17
- 239000008397 galvanized steel Substances 0.000 claims abstract description 17
- 239000010687 lubricating oil Substances 0.000 claims abstract description 15
- 230000009471 action Effects 0.000 claims abstract description 4
- 239000013589 supplement Substances 0.000 claims description 15
- 230000001050 lubricating effect Effects 0.000 claims description 10
- 238000005461 lubrication Methods 0.000 claims description 2
- 230000009469 supplementation Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 239000004519 grease Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The utility model discloses an oil supplementing device for a bearing of a centrifugal machine and the centrifugal machine with the same, wherein the centrifugal machine is provided with a front bearing oil supplementing interface and a rear bearing oil supplementing interface, and the oil supplementing device comprises: the device comprises an oil storage device, a pressurizing device, a conveying device and a control module, wherein the oil storage device is used for storing lubricating oil required by the centrifugal machine; the pressurizing device is used for pressurizing the oil storage device; the conveying device comprises a galvanized steel pipe, one end of the conveying device is communicated with an outlet of the oil storage device, and two outlets of the conveying device are respectively communicated with the front bearing oil supplementing interface and the rear bearing oil supplementing interface in a one-to-one correspondence manner; the control module is internally provided with a timer, and under the action of the timer, the pressurizing device can pressurize or cancel the pressurizing of the oil storage device within a preset time, so that the oil is supplemented to the centrifugal machine or the oil supplementation is stopped. The utility model utilizes the pressurizing device to apply pressure to the oil storage device within the preset time, so that the lubricating oil flows into the centrifugal machine, and the utility model is convenient and efficient.
Description
Technical Field
The utility model relates to the field of centrifuges, in particular to an oil supplementing device for a bearing of a centrifuge and the centrifuge with the oil supplementing device.
Background
Ideally, the bearing life is 20000- > 30000 hours, depending on the design of the bearing, but in practical situations, the bearing cannot reach the ideal situation. According to the review of the data and the verification of the data in recent years, the following results are obtained: the closer the relative error of the oil supplement quality is to 0-1%, the better the bearing running state is, and the closer the bearing ideal running state can be. Through recent statistics, the smaller the relative error of the oil supplement quality is, the smaller the vibration parameter for evaluating the running state of the bearing is.
At present, maintenance operators carry out oil supplement and maintenance on a centrifuge according to maintenance regulation documents relevant to companies, and although the requirements of manufacturer manuals and national standards can be met, the requirements can reach normal operation standards and occasionally can reach 9% of relative error of oil supplement and 4.2mm/s of vibration data, so that a good oil supplement effect is obtained, the relative error is still far away from the ideal 0-1% of relative error, and therefore a high-precision oil supplement device is considered to be needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an oil supplementing device for a centrifugal machine bearing and a centrifugal machine with the oil supplementing device.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides an oil supplementing device for centrifuge bearing for mend oil to outside centrifuge, be equipped with preceding bearing oil supplementing interface and rear bearing oil supplementing interface on the centrifuge, oil supplementing device includes:
the oil storage device is used for storing lubricating oil required by the centrifugal machine;
the pressurizing device is connected with the oil storage device and is used for pressurizing the oil storage device;
the conveying device comprises a galvanized steel pipe, one end of the conveying device is communicated with an outlet of the oil storage device, the other end of the conveying device is provided with two outlets, the two outlets are respectively communicated with the front bearing oil supplementing interface and the rear bearing oil supplementing interface in a one-to-one correspondence mode, and when the pressurizing device pressurizes the oil storage device, lubricating oil in the oil storage device can flow into the centrifugal machine through the conveying device;
the control module is electrically connected with the pressurizing device, a timer is arranged in the control module, and under the action of the timer, the pressurizing device can pressurize or cancel pressurization of the oil storage device within preset time, so that oil supplement is performed or oil supplement is stopped on the centrifugal machine.
Preferably, the pressurizing device is of the LINCOLN QLS401 lubrication pump type.
Further, the working pressure range of the lubricating pump is 150bar to 200bar, and the absolute error range of the pressure of the lubricating pump is 0.004bar to 0.009 bar.
Preferably, the number of the galvanized steel pipe is one or more.
Preferably, the outer diameter of the galvanized steel pipe is 10mm, and the inner diameter of the galvanized steel pipe is 6 mm.
Preferably, the inner diameter of the front bearing oil supplementing port and the inner diameter of the rear bearing oil supplementing port are 6 mm.
Preferably, the outlet of the oil storage device is made of galvanized steel.
Preferably, the front bearing oil supplementing port and the rear bearing oil supplementing port are made of galvanized steel.
Further, the oil supplementing device further comprises a power module, the power module is electrically connected with the control module, and the power module supplies power to the timer and the pressurizing device through the control module.
A centrifuge comprising the oil replenishing device described above.
The utility model has the advantages that: utilize the timer, can set up time by oneself for pressure device applys pressure to oil storage device in the time of predetermineeing, makes lubricating oil flow to centrifuge, and the time is decided according to actual conditions, thereby makes the oil supplement volume more accurate.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a centrifuge provided in an embodiment of the present invention;
fig. 2 is a schematic block diagram of an oil supply device according to an embodiment of the present invention.
Wherein the reference numerals include: 1-centrifuge, 11-front bearing oil-supplementing interface, 12-rear bearing oil-supplementing interface.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or device.
In an embodiment of the present invention, an oil supplementing device for a centrifuge bearing is provided, and is used for supplementing oil to a centrifuge 1, as shown in fig. 1, a front bearing oil supplementing interface 11 and a rear bearing oil supplementing interface 12 are provided on the centrifuge 1, and as shown in fig. 2, the oil supplementing device includes an oil storage device, a pressurization device, a conveying device, a control module, and a power module.
The power supply module supplies power to the timer and the pressurizing device through the control module; the oil storage device is used for storing lubricating oil required by the centrifuge 1; the pressurizing device is connected with the oil storage device and is also electrically connected with the control module, and under the control of the control module, the pressurizing device can pressurize the oil storage device or cancel the pressurization; the conveying device comprises one or more galvanized steel pipes, one end of the conveying device is communicated with an outlet of the oil storage device, the other end of the conveying device is provided with two outlets which are respectively communicated with the front bearing oil supplementing connector 11 and the rear bearing oil supplementing connector 12 in a one-to-one correspondence mode, and therefore when the oil storage device is pressurized by the pressurizing device, lubricating oil in the oil storage device can flow into the centrifuge 1 through the conveying device; the control module is internally provided with a timer, and under the action of the timer, the pressurizing device can pressurize or cancel the pressurizing of the oil storage device within a preset time, so that the oil is supplemented to the centrifuge 1 or the oil supplementation is stopped.
Specifically, according to the target oil supplement amount, the oil supplement time and the pressure applied to the oil storage device are determined manually or in other manners, the oil supplement time is set through a timer, the required pressure is applied to the oil storage device through a pressurizing device, and a power module is turned on, so that lubricating oil of the oil storage device is delivered into the centrifuge 1 through a conveying device. It should be noted that, in this embodiment, a timer with an accuracy error less than or equal to 10ms is selected to ensure that the preset time meets the actual requirement.
According to the rule of flowing speed and viscosity distribution of lubricating grease in a round pipe, the optimal flow rate of lubricating oil at 0-30 ℃ is generally in the range of 0.018-0.02m/s, so that the minimum flow rate can be set to about 0.018m/s as the lowest flow rate for adding.
In this embodiment, the target oil compensation amount is 5g, and the relationship between the oil compensation amount and the flow rate is: g is tSvp, and the diameter S of the pipeline is 27mm2Density of lubricating oil is 0.00095g/mm3Therefore, the time required for the target oil supplement amount of 5g is t ═ g/(Sv) ═ 5/(27 × 0.018 × 1000 × 0.00095) ═ 108.2954s, and 108.2954s are set in the timer; and, according to the flow rate calculation formula
The calculation formula of the required pressure P is known as P ═ v22 ρ, resulting in a pressure P ═ 0.018 ═ 1000)2/(2*0.00095)＝17052631.58Pa＝170bar。
However, it should be noted that in the process of the lubricant flowing out of the oil storage device, which is a pressurizable container, through the conveying device and into the oil replenishing circuit of the centrifuge 1, there are generally pipe bends, lubricant oil is lifted to a certain height, and energy loss during transportation, so the pressure required to overcome the loss needs to be calculated.
In this embodiment, the centrifugal machine bearing top cover to the ground is 1.681 m according to the design manual, so the lifting height must be less than 1 m, according to the pressure loss formula: determining the lifting loss pressure P of the lubricating grease when P is rhogh1＝ρgh＝95*9.8*1＝931Pa＝0.00931bar。
From the numerical simulation of local head loss of 90 ° elbow with circular cross section, it is known that the ratio of the general loss pressure P to the distance L between cross sections is 10, so the loss pressure Δ P is 10 × L, and the pipe diameter is 6mm, and considering that the general wiring elbows are small, the cross section length is small
And 2.82cm, the pressure loss delta P of the single bending is 10 × 0.00282 is 0.028Pa, and the maximum bending time is 10 times, so that the grease passes through the bent pipe to lose pressure P2＝0.028*10＝0.28Pa。
The energy loss due to the length of the line has the greatest specific gravity of the total pressure loss, and the in-path loss of the line is P ═ ρ gh ═ ρ gSvL, where the grease density ρ and the gravitational acceleration are the firstThe degree g, the pipeline area S and the flow velocity v are all known, the pipeline length L is calculated according to the condition that the pipeline winds the centrifuge 1 for one circle, the required length of the pipeline for one half circle of the centrifuge 1 is determined to be 3m through consulting the design manual of the centrifuge, and then the pressure P of the lubricating grease pipeline along the way is lost3Since ρ gSvL 0.00095 × 9.8 × 27 × 15 × 3000 × 1131165.21Pa is 11bar, the pressure device has to provide a pressure P170 bar +0.28bar +0.00931bar +11bar × 181bar, so that the pressure device has to provide a pressure not less than 181 bar.
In one embodiment of the utility model, the pressurizing device is a LINCOLN QLS401 lubricating pump, the working pressure range of the lubricating pump is 150bar to 200bar, and the absolute error range of the pressure of the lubricating pump is 0.004bar to 0.009 bar.
In one embodiment of the utility model, the galvanized steel pipe has an outer diameter of 10mm and the galvanized steel pipe has an inner diameter of 6 mm.
In one embodiment of the present invention, the inner diameter of the front bearing oil filling port 11 and the rear bearing oil filling port 12 is 6 mm.
In one embodiment of the utility model, the material of the outlet of the oil storage device is the same as that of the conveying device, and is galvanized steel.
In an embodiment of the present invention, the front bearing oil filling port 11 and the rear bearing oil filling port 12 are made of galvanized steel, and the materials of the two ports are the same as those of the conveying device.
In one embodiment of the present invention, as shown in fig. 2, the oil recharging device further includes a DP communication module and an actuator, in this embodiment, the actuator is a 6mm inner diameter normally closed direct-acting solenoid valve.
In one embodiment of the present invention, there is provided a centrifuge including the oil replenishing apparatus described above.
The idea of this centrifuge embodiment and the working process of the oil supplementing device in the above-mentioned embodiments belong to the same idea, and the whole content of the above-mentioned oil supplementing device embodiment is incorporated into this centrifuge embodiment by way of full text reference, and will not be described again.
The utility model stores lubricating oil by a container capable of being pressurized, designs a pressurizing device connected with the container to apply pressure in the container to enable the lubricating oil to flow, then conveys the lubricating oil to an oil filling port of a centrifugal machine by a pipeline, and sets the starting and stopping time of oil filling by combining a timer, thereby achieving the purpose of controlling the flow and the starting and stopping time by pressure control, and accurately controlling the oil filling amount.
The sequence of the above embodiments of the present invention is only for description, and does not represent the advantages and disadvantages of the embodiments.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides an oil supplementing device for centrifuge bearing for to outside centrifuge (1) mend oil, be equipped with preceding bearing oil supplementing interface (11) and rear bearing oil supplementing interface (12) on centrifuge (1), oil supplementing device includes:
the oil storage device is used for storing lubricating oil required by the centrifuge (1);
the pressurizing device is connected with the oil storage device and is used for pressurizing the oil storage device;
the conveying device comprises a galvanized steel pipe, one end of the conveying device is communicated with an outlet of the oil storage device, the other end of the conveying device is provided with two outlets which are respectively communicated with the front bearing oil supplementing interface (11) and the rear bearing oil supplementing interface (12) in a one-to-one correspondence manner, and when the pressurizing device pressurizes the oil storage device, lubricating oil in the oil storage device can flow into the centrifuge (1) through the conveying device;
the control module is electrically connected with the pressurizing device, a timer is arranged in the control module, and under the action of the timer, the pressurizing device can pressurize or cancel pressurization of the oil storage device within preset time, so that oil supplement is carried out or oil supplement is stopped on the centrifugal machine (1).
2. The oil replenishment device of claim 1, wherein the pressurization device is of the type LINCOLN QLS401 lubrication pump.
3. The oil supplementing device of claim 2, wherein the working pressure range of the lubricating pump is 150bar to 200bar, and the absolute error range of the pressure of the lubricating pump is 0.004bar to 0.009 bar.
4. The oil replenishing device according to claim 1, wherein the number of the galvanized steel pipes is one or more.
5. The oil replenishing device according to claim 4, wherein the galvanized steel pipe has an outer diameter of 10mm and an inner diameter of 6 mm.
6. The oil feeding device according to claim 1, characterized in that the inner diameter of the front bearing oil feeding port (11) and the rear bearing oil feeding port (12) is 6 mm.
7. The oil replenishing device according to claim 1, wherein the outlet of the oil storage device is made of galvanized steel.
8. The oil supplementing device of claim 7, wherein the front bearing oil supplementing port (11) and the rear bearing oil supplementing port (12) are made of galvanized steel.
9. The oil replenishing device according to claim 1, further comprising a power module electrically connected to the control module, the power module supplying power to the timer and the pressurizing device through the control module.
10. A centrifuge characterized by comprising the oil replenishment device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122950805.0U CN216280580U (en) | 2021-11-29 | 2021-11-29 | Oil supplementing device for centrifugal machine bearing and centrifugal machine with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122950805.0U CN216280580U (en) | 2021-11-29 | 2021-11-29 | Oil supplementing device for centrifugal machine bearing and centrifugal machine with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216280580U true CN216280580U (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122950805.0U Active CN216280580U (en) | 2021-11-29 | 2021-11-29 | Oil supplementing device for centrifugal machine bearing and centrifugal machine with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216280580U (en) |
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2021
- 2021-11-29 CN CN202122950805.0U patent/CN216280580U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240109 Address after: No. 2999 Yunlong West Road, Songling Town, Wujiang District, Suzhou City, Jiangsu Province, 215000 Patentee after: Suzhou Yanda Testing Co.,Ltd. Address before: 2999 Yunlong West Road, Wujiang District, Suzhou City, Jiangsu Province Patentee before: WUXI HUA YAN WATER Co.,Ltd. |
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| TR01 | Transfer of patent right |